1999 Crown Vic P71 heater core replacement

[@edtkacik8247]

Thank you! My son and I replaced the heater core and temperature blend door actuator yesterday in my wife's 2003 crown vic LX with console shift. Couldn't have done it comfortably without your video. Took six hours start to finish including trip to Auto Zone for parts. Thanks. May the Lord bless you for sharing with us.

[@LonnieJohnson1]

+Ed Tkacik You are welcome and glad I could help...

[@tylerseabook9423]

6 hours? With this vid I had mine out in 30 minutes

[@bryanpatrick1405]

did you have to do anything with the shift console?

[@michaelgoscinski3892]

You saved me AGAIN!!! 1st was my 98 marquis heater core replacement. Never tried anything close to it and thanks to your video it went smoothly and was a complete success. Saved about $800 in labor costs from my mechanic!!. 2nd was a 97 marquis blend door actuator replacement. I actually installed a pull cable on the door lever not the actuator as to NEVER have to do it again. Saved another $800. Can't thank you enough. Would love to give you a monetary reward but if I could then why would I be doing all this work myself, I'd pay my mechanic. Money is extremely tight and that's why I had to thank you because you saved me $1600 when I needed it most!! Bless you!!

[@LonnieJohnson1]

Cool!! always glad to help.

[@carterherrmann7721]

I can't thank you enough for taking the 15 hours to make this video.

[@LonnieJohnson1]

Sorry for the really really late response, I just now seen this comment and I have to say your welcome and I was glad that I could help..

[@caylee3277]

15 hours!! Hell no

[@khester4538]

Thank you for this video i just replaced my 2001 grand marquis heater core in 3hrs i called a local repair shop they wanted 650 without heater core he said it would take 8hrs but thanks to ur video i did it myself n 3 thanks again

[@LonnieJohnson1]

Your welcome

[@smithrgx]

Watched the video and read the comments. Just finished changing the heater core on a 1996 crown vic police interceptor. A few observations. The 96 has extra steel brace on the left inside of the glove box; no problem removing it. It also has the ducts for rear passenger heat that everyone mentions with the Lincolns. For gawd's sake remove the front seats and roll back the carpet as soon as soon as you remove those 2 side panels by the parking brake and ground wires. Trying to do it after you have the whole panel unbolted and loose near the floor requires flexlibility of a yoga instructor. Just assume that if you have rear heat ducting for passengers you have to pull the seats and roll back carpet no matter what model crown vic. Last observation- Lonnie Johnson- You are a MIGHTY MOTORMAN! Thank you for the most excellent video!- you save me a whole lot of $$$$!

[@LonnieJohnson1]

Your welcome

[@hootgibsonxplane]

great video, liked how you filmed from a seated position and physically moved to the point of interest, and not just stayed zoomed in all the time! I got a 99 cvp interceptor that needs this done, it's the old brown detectives car, I call it "The Turd"! it's hard to beat a crown vic! Thanks

[@jeffandconnortatadventure5510]

Thanks for this very concise instructional video. It was perfect for me to get the old heater core out and replaced in my 99 Grand Marquis with over 255K miles. Interior panel disassembly always takes extra time to find that "hidden fastener"; this video solved that problem on this job for me. Turnkey cost was looking close to $900, but thanks to RockAuto another OEM core cost me less than $80 (plus some coolant and hose). Of course plenty of elbow grease was expended too.

[@LonnieJohnson1]

Your welcome

[@hmshyperion]

Thank you for this video. Very helpful, saved me a lot of time. I replaced the core in my '93 Mercury Grand Marquis (same car, except for extra sound insulation panels below the dash, and an extra dash mounting bracket to the left of the glove box). One helpful hint. That tiny nut on top of the airbox gave me trouble. The Marquis has extra sound insulation on the firewall which hides the nut. I was working on my own and could not reinstall it , even though I got the box positioned correctly . Instead I used a piece of plumbing support strap bolted to the firewall above the box, wrapped it around the box snugly and screwed it to the plastic underneath the box. This supports the box at top . I installed the 2 nuts below the box and it's as secure as original . Overall this job took me 4 hours thanks to this video, start to finish, despite losing an hour playing with that nut. I could do the job again now in 2 - 3 hours.

[@jimroller8438]

98 Ford crown Victoria, int tr: LY, 4.6L V8.... additional bracket on center console; two nut, two bolts partially under carpet. Heat ducts under seats prevent heater box from being slid back. For this vehicle: 1) remove seats 2) roll carpet to expose rear passenger heat duct 3) remove rear passenger heat duct 4) remove center console dash bracket nuts and bolts 5) follow excellent instructions in video!

[@christinespencer4632]

WOW! You have made an amazing contribution with this video. This is an incredibly ugly job to perform and you single-handedly took the sting out of this astronomically major procedure. Anyone with even the slightest mechanical experience could perform this repair following this video. Be advised, it took me four days at about 2.5 hrs per day SO slow down and take your time and do exactly as the man in this video says. Do not skip steps. have the video with you step by step and you will be just fine. A great sense of accomplishment when your done ALL thanks to the selflessness of this man taking the time to produce this exceptional video. Take care and God Bless.

[@LonnieJohnson1]

Thank You and God Bless

[@Thatwindguy]

Just replaced my 2009 Police interceptors heater core with the step by step help of this video. 4 hours start to finish. Stay warm! Only $35

[@LonnieJohnson1]

Cool!!!

[@bretkovacik9258]

I have to do my 09 also ..I was told that I have to evac my ac lines ..did you have to evac your ac lines

[@Thatwindguy]

Yoo. I didn't need to do anything other than drop the dash and swap the heater core out. You may loose a bit of coolant but other than that you shouldn't need anything else

[@bretkovacik9258]

Thanks ..I swapped it out over the weekend ..I think the biggest pain was every dam screw and bolt was a different size ..I had a mechanical buddy look up the procedure at his work before I did it and it said to evac the ac ..not sure why it said that other than it's a money grab by the dealer

[@KickinJeff]

Great video but at the 12:15 mark you do not need a swivel to get the bolt off if u have a long extension because u can push it right through over the white box (blend door actuator) where you pulled the wire. I just did mine today and this video was my guide to getting the job done!!!!!

[@LonnieJohnson1]

Thanks, glad I could help but on that mark you mentioned I couldn't find any other way. Your comment will give others an idea of what to look for in that area, so thanks for posting.

[@Cannontime]

I still needed the swivel to get it back on. Wrapped some tape around the swivel to make it less floppy

[@JonathanEakin]

five hours and a 2nd trip to get the right size core for a 98 P73- the video was a HUGE help, probably saved us 2-3 hours THANK YOU FOR SHARING THIS. It was getting quite cold on my commutes lately

[@LonnieJohnson1]

Glad to help

[@davebuell2655]

This video can save you hundreds of dollars. Thx Lonnie.

[@LonnieJohnson1]

+Dave Buell Your welcome

[@genore1993]

thousands

[@taotuhao5969]

Yeah more like a full one thousand, this is a $1300 according to every shop around. I have a 1999 Lincoln Town car, that needs a new heater core, and front ball joints, plus, it has a small dent in the back. I am not sure this car is worth the hassle, when i could probably sell it as is for about $1000.

[@tylerseabook9423]

@@taotuhao5969 following this vid you can do this is under two hours. Definitely worth saving the car

[@donf9925]

Just got half- way through I'll finish puttin it back together tomorrow. I got a 99 Grand Marquis (same thing) and I can tell you it would have EASILY taken 5 TIMES AS LONG without your video - really helped me out, thanks !!

[@LonnieJohnson1]

+Don F Glad I could help...

[@wrdmndan]

watched your vid about ten times for familiarity , wrote notes on paper numbering steps noting time on vid for each step , noted where disassembly and reassembly could be streamlined , very good vid and in depth very informative .After watching vid 1st time I will admit I felt overwhelmed but am now confident job can be done with minimum difficulty . Thank you for your vid vI really appreciate it it is worth considerable amount of money I have an 07 merc marquis

[@LonnieJohnson1]

Your welcome, glad I could help

[@eldeefitty4473]

Just did a Blend Door Actuator replacement job which is in the same spot. This video helped out a lot! One thing to note: on newer models, the shift/gear indicator line is in a similar spot but hidden by the steering column cover. It's worth taking that apart (3x 7/32 bolts and some pulling in my '08) to find and get that off before dropping the wheel. I broke mine but glued it back.

[@LonnieJohnson1]

Cool, that's good to know thanks

[@ericdavis5759]

I had to replace the blend door actuater back 3 months ago. I used two friction grip tiedown straps hooked into the Apiller and a bolt hole on lower side of dash and was able to pull dash back by myself. second item was I used a 4 inch by inch board to hold up wirebundle so I could get actuater out and it made getting screws in and out easier. this was on my 02 towncar thanks eric

[@LonnieJohnson1]

Cool! those r always good for extra hands when u need them.

[@vegaspinball]

Pro tip! at 11:39 if those two nuts come off fine but the darn thing still won't budge, look closely. my 2003 had tiny black lock washers under the nuts! had to pry them up with a screwdriver and yank them out with pliers. I was about to give up on this job! Thanks for the video man!

[@LonnieJohnson1]

Glad to help

[@stevethomas7767]

That makes my work much easyer on my P71. Now i can start.... Thank you very much from germany.

[@LonnieJohnson1]

Glad to help...

[@olafvikingwarrior2349]

90 mechanics disliked this video. Thanks for posting turning a $500 job into the cost of a 12 pack.

[@LonnieJohnson1]

Your welcome

[@nsxcommunications256]

You are the MAN my guy. Well done and greatly explained.

[@LonnieJohnson1]

Thanks, glad I could help.

[@29mailman]

Thanks so much for putting up this video! I just did this on my 99 mercury grand marquis following your instructions and it took about 6 hours. a couple small differences but no real issues. Couldn't have done it without your help

[@LonnieJohnson1]

Your welcome. Glad this video could help.

[@noconsentgiven]

@Noel West could you tell me the differences?

[@Cannontime]

I had a couple extra trim panels under the dash 99 grand marquis

[@Cannontime]

I had a couple extra trim panels under the dash 99 grand marquis

[@werdellhawk8693]

Thanks for making this video. I was able to replace my heater core with the help of my sons. Great Video!

[@LonnieJohnson1]

+Werdell Thanks, glad I could help.

[@Cannontime]

Thank you for taking the time to make this video. Got it done in 7 hours, would have broke half the trim pieces without the instructions

[@LonnieJohnson1]

Your welcome

[@alanb3313]

Outstanding !! One of the best videos ever !!! Makes this scarry project look doable. Thank you VERY MUCH !!!

[@LonnieJohnson1]

+Alan Baxley Your welcome and thank you for the comment.

[@banno6938]

Doing a 1999 town car heater core & this video helped find hidden bolts .

[@LonnieJohnson1]

Cool!!

[@johnduncan5252]

i know you changed your heater core but all i want to do it take the dash out to change from one crown vic to another. your video is the best that actually answered my questions and i will change the heater cores anyways so i dont have to later. thank you for this video. i have saved it to my fav to watch it more times. take care

[@jimtresider8046]

I enjoyed your video it was very informative and well done. My car is an 02 Merc G marquis. I need to get this done.

[@LonnieJohnson1]

The Marquis is similar but with a few more bolts and screws from what I hear, and very doable.

[@jimtresider8046]

Just one thing different i see is I have the floor shifter & console to remove also .

[@randallwilkes7746]

im doing it a 02 Grand mar. now what differences did you find?

[@simpleman3682]

Thanks to your video I was able to do this today by myself in 3.5 hours. The top bolt that goes through the firewall next to the heater core tubes, will go through to the inside. Once I removed the nut on the outside and everything was apart on the inside, I thought I'd try something. I took a piece of 2x4 and placed up in the ends of the heater core tubes on the firewall. I hit the other end with the palm of my hand and the heater box came right out. I also figured out by just moving the main wiring harness that goes around the bottom of the heater box, you can tilt the heater box towards the seat and the core can be taken out without completing removing the box from the car. Thank you so much for this video. Without it I would have never tried this by myself 😎💪🏻

[@LonnieJohnson1]

Cool! and thanks for the tip, every little thing helps and you're welcome glad I could help.

[@johnmccormick2002]

Hello, not sure if the crown vic you had is different from my 98. but i found it wasn't as simple as taking the 4 bolts off the steering columm and dropping it. there were quite a few electrical connectors that had to be disconnected on mine just in order to drop it without it breaking the cables. Once i had the dash pulled back and unbolted the HVAC box i found it impossible to remove it.. didn't just fall out as yours seemed to have. as others have said on here i had to pull the carpets back & cut into the center air duct with a little saw ( ended up using HVAC tape to seal up the clean cut & found it easier than removing the seats ) that direct heat to the front floor & rear. Only then was i able to get the heater core out fully. thanks for the video though, helped me through mostly all the steps PS to everyone who attempt to do this job it is best to just replace your blend door actuator seeing as its super simple to access once you drop the HVAC box

[@LonnieJohnson1]

Yes that's a good idea, this is a job I wouldn't want to do twice. I didn't have to cut the carpet and my heater core came out at the top.

[@johnmccormick2002]

LonnieJohnson1 how’s the old crown Vic running today ? Lol Two days after I fixed my heater core my window regulator broke. Go figure

[@LonnieJohnson1]

Still runs great! You can rebuild or replace the motor for the window.

[@johnmccormick2002]

yeah the motor is still in pretty good condition going to go in with a rebuild anyways. regulator died though so i will be replacing that as well@@LonnieJohnson1

[@sosscarz]

So detailed Awesome job dude. I haven't found a detailed heater core video that was dead accurate like this.

[@LonnieJohnson1]

Thanks!

[@juanmartinez-we4mq]

Thanks for the video . This job took me 7 hours thanks again for your help.

[@LonnieJohnson1]

Your welcome

[@davidslater4092]

About to start mine tomorrow, I'm sure I will have some questions. Great video btw 👍🏼

[@rogerhockemier9904]

Hey very well done! I love it very simple video and to the point and good camera angles. Good job!

[@starrwoman1]

Awesome job, very well detail on instructions, great reference. Now I'll know what to do to repair my 09 Crown Vic when the time comes, Thanks for sharing. :-)

[@LonnieJohnson1]

Thanks and I'm glad I could help.

[@josevilla7442]

Thank you best detailed video, I did everything in 35 minutes would of taken me up to 5 hours to figure out my self all I need now are top 3 bolts tomorrow I'll drop the the dash and replace the core put it back together. I'm working on my moms 98 Lincoln town car

[@LonnieJohnson1]

Thanks! and your welcome, glad this video could help.

[@josevilla7442]

But the linclon had 5 extra bolts it had two on the bottom right on driver side and for the heater core it had 4 bolts in the hood to remove had one behind the engine on driver side and the one you showed next to hoeses two more to the left of the hoeses that the was the only difference

[@LonnieJohnson1]

Lincolns are a little more of a luxury car and put together a little better that is probably why all the extra s help to keep it more quiet. Thanks for the info.

[@recon1071]

I can't find those. I found two that hold the screen in place. Are they under the wiper system? I am taking that out tomorrow.

[@mrc6032]

Thank you for your video and taking time to make it. I had a time trying to find videos about accessing heater core. Your video helped me a lot. Cheers

[@LonnieJohnson1]

Your welcome and glad I could help

[@BMXnGaMeR]

Thanks i just replaced the core in my 2001 some minor differences from your 1999 but the video was very useful i was able to do the job by myself

[@LonnieJohnson1]

Cool!

[@D4x4Bronc]

the only 98+ panther heater core vid that is worth a shit. thanks.

[@LonnieJohnson1]

+D4x4Bronc Glad I could help, thanks!

[@danszj]

Great video skills. The perspectives were great and helped me with my project.

[@LonnieJohnson1]

Thanks

[@tiporari]

Great video. Not looking forward to this, but seeing it done once helps save some dread :)

[@LonnieJohnson1]

Thanks, I hear ya! I thought the same way but you can do it...

[@psychicinspiration2565]

Thanks for the great video, you gave me the confidence to tackle this on my own. Again GREAT JOB!!!!!!!!!!!!!!!!! Tom.

[@LonnieJohnson1]

Thanks

[@portmurphy1]

Thank you so much for saving me $400-$600 99 vic interceptor 👍👍💯

[@LonnieJohnson1]

Your welcome

[@mrtukan3060]

Wish I had seen this before i spent the 600. I am def subscribing. Thanks for sharing

[@LonnieJohnson1]

Your welcome and thanks

[@1981jcg]

I really appreciate that you made this video cz i have to do a jib similar to what you did on it and this video will help me on removing and installing tge dashboard on my 2000 MGM LS THANK YOU IN ADVANCE and ill keep you updated on how it went on my job

[@LonnieJohnson1]

Cool! Yea let me know how it goes.

[@1981jcg]

@@LonnieJohnson1 I will do my best to take video if not at least pictures

[@LonnieJohnson1]

Cool! this video took me 15 hour and that's not including the editing.

[@1981jcg]

@@LonnieJohnson1 i been watching videos for a while and i hope i take less than 15 hours

[@LonnieJohnson1]

Should take about 3 hours, 4 at the most. I took my time and tried to get it as detailed as possible.

[@fosterfd63]

Thanks very helpful the shop wanted 700 bucks to do this.

[@LonnieJohnson1]

Your welcome

[@flatman]

They want 1800 by me 😂

[@recon1071]

On the 1999 Lincoln Town Car the heater core box is connected on the passenger side to the in/out recirculated air system. It did not just fall out after all of this. I am stuck and don't know what to do except to get the diagrams from the service manuals.

[@LonnieJohnson1]

The Lincoln Town Car is a little different than the Crown Vic. The Lincoln Town Car has more bolts.

[@recon1071]

Thanks. I saw that in another comment, but can't find them. I will ask the other commentor if he can tell me where they are, or find a schematic.

[@garybeckner4556]

just did my town car. it requires a lot more work. the bolts to remove the heater box are located on the fire wall which requires you to remove the wiper blade motor and fan motor, not to mention you must remove the seats to remove the carpet to remove the rear vent cowling. the five screws he took off to take the core out were actually 9 on the town car. other then that everything else was spot on

[@danielhalliday6497]

This should be the same with a 2002, correct? Any tips you can provide that might make this job a little easier? Any Tools I would need that one normally wouldn't have? Excellent video, I subscribed!

[@edcrego396]

I know this is a old video but I sure wish I would've discovered it sooner well done

[@LonnieJohnson1]

Thanks!!

[@toms6711]

Thank you this video was very helpful. Thank you great job excellent details

[@LonnieJohnson1]

You're welcome and thanks!

[@TheItchyBum]

Thank you so much, it was because of your video that I was able to do this.

[@LonnieJohnson1]

Cool! glad to help

[@afhostie]

Just changed this out on a 1999 Town Car. You'll need to take out the seats and center console so you can pull back the carpet and pull back the ducting that vents air to the rear (sits on top of the transmission tunnel). Then you can proceed mostly like in the video. Tried to remove the dash and the plenum without removing the seats and the ducting to the rear and couldn't get it out.

[@johnmccormick2002]

i just changed my 98 crown vic with a friend.. we ended up cutting through that air duct & taping it back sealed found it to be easier than removing the seats

[@JustAGuyWithALongScreenName]

Man I didn't want to hear that. Got a 2000 Town Car I'm doing this to. Did you by chance remove the dash from the car? I got some horribly bad instructions and now have my dash in a million pieces. Would be easier to put back together out of the vehicle.

[@johnmccormick2002]

Not sure if the procedure is the same on your Town Car.. but in my case i just dropped the steering column to the floor and pulled the dash as far out as i could to access the HVAC box. hope all went well@@JustAGuyWithALongScreenName

[@EternityofNight]

I have a 98 TC and I have already disposed of the center ducts and console, I didn't see any need for them.

[@wrdmndan]

one last question ...can blend door actuator be changed easily without dropping heater core ...this video is best one i've seen

[@LonnieJohnson1]

Thanks, and unfortunately no because the box has to be pulled back to access the top bolt that's in the back. If you are that deep into it I would check and maybe even replace the heater core because I would not want to take it apart again later, but that's just me.

[@jeffwiencek4632]

Thank you! This video is on point!! Helped me A LOT!!

[@LonnieJohnson1]

Cool!! glad I could help.

[@abdullahrashed6050]

Thank you so much for help us how to do that tough job, God plus you

[@LonnieJohnson1]

You're welcome

[@sorinsmith2732]

Great video. Had it done in 4 hours.

[@LonnieJohnson1]

Thanks and 4 hour is good.

[@workingclassperson2124]

Use my Gmarky for night security CORE JUST BLEW windows are fogged over interior smells like coolant. But thanks to you im going to use my days off to use your vid and GETTER DONE!

[@Dolo5Live]

Is it causing you to loose coolant.. my glass is fogged on the passenger side and I’m loosing coolant

[@stephone304]

You sir are a MVP💪, good How to Video!!

[@LonnieJohnson1]

Cool!!! Thanks

[@Michael_Lorenson]

Excellent info, well presented. Thank you!

[@LonnieJohnson1]

Thanks...and your welcome

[@teacherlynn671]

Great video and I used it but now I find out that when I put everything back I did not line up the ductwork properly and I have a duct that is on the floor and I suspect it is for the backseats. The real problem I have is that everything only comes out of the panel vents. I had the EATC rebuilt by a great and honest company Module Master by Chad. Still only air through the vents. Any thoughts on that and how to get the ducts lined up again? Hope you still comment and you put out a great video. I have a 2000 Grand Marquis.

[@LonnieJohnson1]

Thank you. Before taking the dash back apart for the duck work I would check the vacuum lines on the controls.

[@teacherlynn671]

@@LonnieJohnson1 Thank you for replying and I appreciate that but the lines are all good and the doors work (or I hear them work) when vacuum is applied. I will delve into it more and if I find anything I will piut it im comments. Thanks again

[@LonnieJohnson1]

It could be from the duck work not hooked up.

[@joeblowski4643]

Thank you. Gonna replace my neighbor's heater core while he's gone for the weekend.

[@LonnieJohnson1]

Your welcome

[@johndrury4513]

Thanks for making my job easier

[@LonnieJohnson1]

Your welcome...Glad I could help.

[@jasonpugh4950]

Using this video as we speak!!! 3-4 hours tops!

[@LonnieJohnson1]

Cool!

[@pilgrimpassingthrough2228]

Excellent video. Let me ask you something.....Is is possible to install the new heater core somewhere under the hood? Even if you had to add a few more inches of heater hose to reach the core at its new location under the hood! If not....why not? I really would appreciate your thoughts on this as it seems it would be so much easier than going through all that what you had to do! Thanks for any reply! May God bless you!

[@LonnieJohnson1]

Thanks...I think it has something to do with the heat on the inside of the car. As the core gets hot the fan circulates the heat through the vents as needed with the control...if the core is on the outside under the hood I don't think you would get heat on the inside of the car.

[@pilgrimpassingthrough2228]

@@LonnieJohnson1 Thanks Lonnie!

[@LonnieJohnson1]

Glad to help

[@toddwest9115]

About to endevour on this journey on my 2005 P71.. Unfortunatly the water froze and now my cars overheating, just temp gauge light.. but no check engine yet so i might be lucky. Heater core is leaking i think.. no coolant on the floor. but fog literally pours out like a ecig. and coolant smearing the glass. killed my tint. the heater core for my 05 is 35 bucks. got to do it this weekend. but with freezing temps now i had to heat up the car, drain the water/coolant and flush it out. then replace the heater core. dont know which job is worse. The coolant doesnt appear to be on the floor. but underneath the car i smell coolant and sometimes see steam from coolant hitting cat. Is it possible its leaking on the interior side of the firewall and draining underneath the car? Im still thinking its the heater core as its the only thing i can think of that is inside the vent tubes.

[@LonnieJohnson1]

Usually when fog steams up the inside windshield it's the heater core and the floor gets wet as well, however if it's sealed tight enough that it hasn't gotten to the floor yet and some how leaking outside you don't have to work on a wet carpet. You can take the heater hoses off and connect them together and see if it's leaking elsewhere.

[@nfreson]

What up from WI. Good video my friend!

[@LonnieJohnson1]

Thank you!

[@tconside]

if the top bolt does not come out of the firewall, put the nut back on the end of the bolt under the hood. use a socket and an extension and, hit it with a hammer. it is held in place between the housing and the firewall with a thin metal retainer.

[@LonnieJohnson1]

Thanks for the info

[@ILSRWY4]

Quick Question: In reference to the stud and bolts that are in the top left of the airbox Plenum, the one one where the nut comes off from the firewall engine compartment side, How did you get it to come through the fire wall (before attaching it to the airbox?)? Several people say, it won't come through the firewall, even you had trouble, and they ended up unscrewing the bolt from the inside. So.. again, how did you get it to come through? Thanks!

[@LonnieJohnson1]

I had to remove the nut from the inside off of the stud that was connected to the box and with the nut already removed from under the hood the stud just fell out. I have no idea why the stud wouldn't come out while it was bolted to the box. When I reinstalled the stud I bolted it back on to the box first before putting it back through the fire wall. The stud has to be bolted back on the box before you put it through the fire wall, that is the easiest way.

[@fecklarjenkins2549]

I wonder if u cut under the dowel straight down to it? Just out of curiosity would be fun to try on a scrapper

[@LonnieJohnson1]

It would be fun.

[@don_legendro]

Great video ...what tools are needed? 2002 crown vic

[@LonnieJohnson1]

A Phillips screw driver, sockets, and a racket with a long extension. I used a cordless screw diver.

[@teacherlynn671]

I did the job and I used your video but now the air only comes out of the dash vents. I have vacuum and the vacuum motors seem to be working by the noise the doors make. Did I do something wrong putting it together????

[@LonnieJohnson1]

Sounds like a vacuum hose might be pinched or kinked.

[@stevencerwin2009]

My 1996 Mercury Marquis, heatercore took a dump. This video looks worth while to attempt it myself. I will let you guys kno how it goes. here in IL they want over $ 900.00 to have this job done.

[@LonnieJohnson1]

+Steven Cerwin Yes! that would great! thanks

[@stevencerwin2009]

+LonnieJohnson1 you forgot about the T30 Torx Bit needed to remove the plate off the back of the steering column, also if the key is turned forward while dropping column it makes it tons easier cause it pivots an swivels much easier then fighting the lock it also forces in easy, also note that the small studs on the bottom of the heater core system, are moveable there not fixed in one place the wiggle. But with all this said I did the whole cooling system all rubber hoses, Flushed radiator.. an put an aftermarket thermostat in that pops at 180 Degrees All Systems are good, no idiot lights. Took me 2 Days.. Taking my time doing it all right.

[@LonnieJohnson1]

+Steven Cerwin I didn't have any T30 Torx, they were all bolts or screws. You must be working on a different vehicle. Like I said in the video, you could probably find easier ways to do this. This video is a guide to show one possible way to do this on a 1999 P71 Crown Vic. Let use know what model and year you r working on?

[@stevencerwin2009]

I was under a 1996 Mercury Marquis. But, if you look at any Haynes Manuel it say's From 1988 - 2000 Ford Crown Victoria / Mercury Grand Marquis.

[@LonnieJohnson1]

+Steven Cerwin The book don't tell everything only a comparison of how it's done. I have a P71 police interceptor not a civilian car. Even the gas tanks r mounted different in some models.

[@teacherlynn671]

I did the job on a Grand Marquis. The problem now is that I don’t have heat nor do I have any control of where the air comes out of. It only comes out of the vents now. Any ideas? Did I do something wrong doing the job? Most of the vents work but the one for control to switch off of vents does not. I did not change the temperature door actuator when I did the job because it worked before I did the job and looked OK.

[@LonnieJohnson1]

When something is wrong with a vacuum line or low on antifreeze the car has a default system that makes the air come out on the windshield to defrost for safety reasons.

[@teacherlynn671]

@@LonnieJohnson1 Thanks for replying and love your video and watched it several times.

[@LonnieJohnson1]

Cool! hope it helped.

[@EscobarMT]

great video sir. did you remove any bolts from down the a/c control in between the in cigarette tray n floor?

[@LonnieJohnson1]

+oSN1P3Rou No

[@oldschoolrican]

I got a 1997 Mercury Grand Marquis (aero-style) & i was wondering would it be the same set up or it's gonna be a lil different? I'm diggin your video man.👍🏽

[@portmurphy1]

I can't get the box back on to that 7/16 bolt, everything else is working out pretty good

[@jpoplin1]

This video coming in handy again another heater core down

[@LonnieJohnson1]

Cool!! glad it could help.

[@JustAGuyWithALongScreenName]

Excellent video bud. Wish I had seen this before I got some horrible instructions yesterday. Now my dash is in a million pieces. Is it just firewall connectors keeping the dash in the car once you pull it foreward?

[@LonnieJohnson1]

Thanks, it's just a few bolts, some wire harnesses and the steering column and don't forget to unbolt the shift indicator cable.

[@blakeNovember]

Is dropping the steering wheel a must? I wasn't seeing a definitive reason for it. Im about to tackle this problem and any insight will help.

[@LonnieJohnson1]

It was for me to get the dash down where I needed it.

[@demiurgeobzen327]

I have a beater '01 Grand Marquis, I'm assuming the same steps still apply since both are the same platform.

[@LonnieJohnson1]

I have been told there are a few more bolts to deal with than on the Crown Vic.

[@jamilclark3]

Thanks for the knowledge...will this work for a 2000 marquis as well..

[@LonnieJohnson1]

The Marquis has a few more bolts but but about the same.

[@jamilclark3]

LonnieJohnson1 thanks about to start on it today... let ya know how it turned out

[@sodopesofresh9089]

Thanks for the video. It's been super helpful so far. I'm ready to put the box back in but I can't get the upper stud out of the firewall like you suggested. Feels like there's a washer or something on it holding it in place and keeping it from moving either direction. How did you get it out?

[@LonnieJohnson1]

Mine came out from the outside of firewall and had a nut on both sides then I mounted it to the box first and then pushed it back through the firewall and put the nut on it.

[@victorgonzales6989]

I'm really looking forward to getting a 1999 crown victoria

[@jaquanmiller3988]

How did you get that 5/8 nut off at 6:20?

[@LonnieJohnson1]

Ratchet and extension with a swivel and socket at the end

[@rickgrabowski2947]

Steering column on my Mercury doesn't want to go down to the seat. Can't find what it's catching up on, did you have this problem?

[@LonnieJohnson1]

I did, I had to push my steering wheel inward and down.

[@davebuell2655]

Hey Lonnie, would it be a smart thing to do to change the heater blend actuator while the dash is down? Thanks, Dave.

[@LonnieJohnson1]

+Dave Buell If you are having issues with it, it would be a good idea to do so. On the the other hand, I always say, if it's not broke don't fix it.

[@PNW_Car_Mods]

This video is still 100% relative in 2024. I'm an accomplished mechanic and have done many ford heater cores but never on a crown vic. This video shows everything I needed to know. Still not looking forward to it.

[@LonnieJohnson1]

I don't blame you. It's not that bad once you get the dash out of the way.

[@abrahamojeda408]

I'm about to attempt this fix on a 2008 Crown Vic p71. Need some help. Is the Motorcraft HC31 the correct core? Should I get a cheaper brand like Spectra? I'll admit, I'm partial to Motorcraft but it's double the price. Thanks in advance!

[@LonnieJohnson1]

I got my core from AutoZone for about $35.

[@MarlonMuzic]

11:53 . where did that white wire connect to ?

[@LonnieJohnson1]

I have no idea, I just tried to keep it out of my way.

[@ambermorrison679]

We watched your video step by step as well as another video showing the same exact steps but after putting everything all back together we put the key in the ignition in the start position and we would only hear a click from the relay.. we checked everything and didn't find anything misplaced. We do have an antitheft lock system which seemed to be the only difference. Do you know anything about how to reset that so we are able to crank the engine?

[@LonnieJohnson1]

If everything was put back like it was the car should crank over. Make sure the wire is connected and your gear shifter is all the way up in park.

[@jamesvalenti9288]

I could have used this vid 3 years ago....I did the heater core on my '02 crown vic. I was never able to get that top bolt on the heater box assembly back on...so its basically being held on by the 2 hoses, and one bolt. lol I am just curious....on the drivers side, theres a white vacuum line coming out of the firewall about a quarter inch thick, and about a foot of slack. What does that go to?

[@LonnieJohnson1]

Not sure.

[@christopherbrown3000]

a-lot of the time's seems to be an egr line to control your cruise control. in some form or fasion

[@Kimberlyexpects]

That white plastic line on the drivers side of the 02 crown vic is the vacuum line for the automatic parking brake release.

[@jamesvalenti9288]

Kimberlyexpects where does it plug into? I could never find the spot

[@Kimberlyexpects]

I'll bet someone took that out so all you have is the the vacuum line just hanging there. That white plastic line plugs into a vacuum outlet under the hood. And the other end comes through the firewall and over to the brake release at the parking brake. You've got to have the whole set up, not just the white tube. The reason I say it must be disconnected is because if it wasn't you would have a massive vacuum leak at the white hose. If you can live without an automatic brake release, just forget about it. If you must have that working though. You'll have to go to a junk yard and pull the parts you need to put all that back in. It's not hard, but a pain if you're not use to working on cars. It's fairly self explanatory when you look at it all hooked up. And if the white tube is making noise, you have a vacuum leak. Disconnect it under the hood or plug it up tight if you're not going to fix it.

[@jamesm9218]

Thank you for a great video! I'd like to do this myself but how heavy is the dash? Could one person manage to get it back together?

[@LonnieJohnson1]

+James M It's not really heavy it's just awkward. You can do most of it yourself but you may get to a point where you need an extra hand here and there.

[@UNC030]

I'll be attempting this job on my 2000 Crown Vic (was a police intercepter too) in a few days - should be done the same way more or less yeah ?

[@LonnieJohnson1]

Should be.

[@UNC030]

@@LonnieJohnson1 thanks for both the video and the reply !!

[@LonnieJohnson1]

Glad to help

[@UNC030]

@@LonnieJohnson1 your guide was PERFECT!! Got it done along with a driver door lock switch, oil cooler line and oil change in about 6 hrs, only had a few hiccups but I can live with them now that I have heat and defrost during winter. THANK YOU VERY MUCH !!!!

[@LonnieJohnson1]

Your welcome

[@DavidWahlstrom69sins]

just did my 97 marquis and followed steps to a T, well everything but put that nut back on box before reinstalling.....cant seem to get the dash ass. on right on drivers side , the main bolts closest to the door frame aren't lining up and are off about 1 1/2 inches from holes.....spent hours and still cant see why the hell the damn thing wont go back on i am literally taking a cab to work today, any reason i cant get the dash back on via drivers side and get them last 3 screws closest to windshield to button up and get it right....????what could possibly be obstructing the dash from going back on right???? PLEASE BRO HELP ME OUT, any advice would be appreciated!!

[@LonnieJohnson1]

U should be able to pick up on it and push it in.

[@DavidWahlstrom69sins]

I know right but it feels like there's something caught or stuck keeping it from going in like when you have a sock shoved deep in your shoe trying to put it on and it ain't Fittin right but I thoroughly checked with four pairs of eyes and bright ass LEDs for 2 hours nothing looked out of place could that Bolt that I didn't put back on the box after I installed the heater core have anything to do with it cuz it seems snug

[@LonnieJohnson1]

I would pull the dash back to make it move and then try to push it back in top first.

[@snajonesmichael]

I have a '99 Crown Vic with the blend door stuck in heating mode. Is it possible to repair it without dropping the dash?

[@LonnieJohnson1]

You might have to drop the dash because my blend door was at the top back of the dash.

[@kjones1473]

I can't unscrew the 5/8 nut under the driver side inside the dash. It is too far up in the dash! What tool should I use for this? Please help. Thanks.

[@LonnieJohnson1]

+Kaluv Jones Use a long extension with a swivel on the socket.

[@galogallo]

Amazing video Sir🙏🏼

[@LonnieJohnson1]

+Gilberto Gallo Thanks!

[@gilrodriguezsoto4046]

is it almost the same on a 2005 mercury grand marquis??

[@zopound3389]

should it be difficult dropping the steering column? I removed the bolts but it's kind of hard to tug on

[@LonnieJohnson1]

+Alonzo Law There should be four bolts holding it up. It should fall after the last bolt comes out. Watch your shifting linkage, don't break it.

[@zopound3389]

+LonnieJohnson1 putting everything back together and there is this pinkish white wire hanging from the box that holds the heater core...does it connect to something?

[@LonnieJohnson1]

+Alonzo Law Does it have a connector clip on the end of it?

[@zopound3389]

+LonnieJohnson1 looks as if. red rubber piece at the end

[@LonnieJohnson1]

+Alonzo Law It's hard to say, I would have to see it. You should be able to look around in that general area to see if there is a place or wire end that it will connect with.