Blower Resistor / Blower Motor Failure

In this video I show you how to test your blower motor amperage if you have a 2006 Chrysler Town and Country that has a repeat failure with blower motor resistors. Please refer to the shop manual for the proper technique of testing and repairing.
Blower Motor and Resistor used in filming:
Flanged Vented CW Blower Motor w/ Wheel
Part No. 75739 Blower Motor; Front; w/ Wheel
BWD HVAC Blower Motor Resistor
Part No. RU1055P
Original video of resistor testing:
• Test And Replace Blowe...

[@ThecardoctorTV]

Great vid and reminder to do more testing buddy. I have found that OE blower motors work best on these Chrysler products. I did the same one a while back and the customer returned saying it didn't sound the same. I ended up going with OE and it did sound much quieter. Doing it twice for the same money is twice as bad as once for the crappy pay. I think my book gave two different labor times depending on pulling the dash. I have gotten better at getting them out over time as we see quite a few. I never test for amp draw as any time I run into a resistor failure I condemn the motor as well. Thanks again for an excellent video sir!

[@mikechiodetti6737]

Years ago we had Dodge B3500 vans. Because the A/C systems ran so much, the front HVAC 30 Amp fuse would melt. I tested the motors with an old Craftsman combination (analog) gauge with a shunted 100 Amp scale. Ya, 22 to 25 Amps signaled motor change time. Tried using compressed air to clean out dirt from vent holes.......no good. New motor, approx 13 amps, engine running, jumper wires on battery. Chrysler came up with a "fix" involving a relay, wiring harness and separate fuse for high fan speed. Installed one kit, two months later the blower motor blew out the new fuse. Replaced motor, no more "fixes"! Great video!

[@DENicholsAutoBravado]

Good on you to show the come back. We all don't like comebacks to happen, but sometimes we learn the most from them.

[@SouthMainAuto]

True story. Also it proves we are only human!

[@DENicholsAutoBravado]

South Main Auto Repair :)

[@modeste52]

thanks you my friend. I just fixed my front blower motor that stopped working yesterday. best repair video ever!

[@SouthMainAuto]

Jonathan Modeste Thanks :)

[@dyejimmy]

Thanks for making great videos. I come to you first for all my vehicles. I am bummed that you didn’t record the blower removal since I’ve heard that it’s a pain and have now watched others and hoped you had a better way. Keep up the good work though!! Thanks!

[@SFBGuitar]

Thanks, bud. This really helped. I just fixed mine 10 mins ago.

[@molsky13]

Hi Eric that motor was pulling a lot of amps how did the fuse not blow great video ,the man who never made mistakes made nothing

[@BANDIT198455]

Because the fuses are usually 40 amp and the draw was more than half of that so as he said it puts stress on the resistor but not the fuse.

[@kilmgh]

Thank you for the tips we are looking at a Chrysler Town and Country now with a blower motor that will start working after a while. So I thought blower resistor or motor itself. Well be checking amps.

[@josetorres6502]

cool video ,very helpful

[@geojor]

informative, thank you...

[@floydindursky2973]

Thanks for your Video! Mine kept blowing and i had an assortment of them from Garys u pull it Junk Yard! for spares! The van has 240,000 on it and im Trying to hit 300,000 ! I will change the Blower motor next!

[@guidosalas7089]

Great job.

[@jarinwilson9539]

Your Snap On Mt2400 is in outstanding condition. On camera it looks like it hardly gets used but man, it is an awesome graphing multimeter. I have made this mistake before as well, we are only human, good job.

[@SouthMainAuto]

Oh man that thing is a relic lol but no it gets used very often. I am the only that uses it so I try to keep my stuff in good condition. I think I bought that back in 98 or 99. Use to be pretty state of the art haha but I just use it for a graphing meter like you say. I use my Verus more than anything and that is what is in most of my videos. I like the 4 channel lab scope on that. Depends on what I am doing I guess. Thanks for watching!

[@maranathamark]

Actually, I've seen another Chry Town and Country 2005 with a NEW Resistor and brand new motor, was drawing 25 - 26 amps on high. The Mechanic did test the Old motor before he decided it needed to be replaced. He came to the same conclusion that it was drawing too much amperage at 26 amps. Luckily before he removed the old motor, he just hooked the new motor up to the NEW resistor he had just installed and ran amp meter again, on the NEW motor outside the motor compartment, and it pulled same amount of amperage within an amp (25 amps to be exact) that the Old motor was pulling. So he stopped at the resistor replacement. Now this is not to say that the new motor he got from NAPA wasn't screwed right out of the box, it does happen, but he decided to go with the old motor too. I've not seen a follow up so don't know if he didn't have the same issue you had a few months down the road. It would be nice if Chrysler had the amps ratings: low, med and high that are supposed to be drawing on that motor. There appears to be a whole lot of guessing going on here.

[@dalesnyder1753]

you seems real good at tracing problems , I need my 2008 to be in your shop where you located; :-)

[@hawaiianf1504]

Eric - I found the Back Probe set that you used and I spoke of below. It's a MAC SP4000 4PC Back Probe Set for MACs ET1330 and ET120 Auto Logic / DVOM. Found and ordered on EBay for $12 w/shipping.

[@SouthMainAuto]

+Hawaiian F150 Ahh there ya go...oh man sorry I forgot to get back to you on this one :( Things at the shop have been nuts. Good thing some one mailed me a whole box of sugar to keep me going lol!

[@hawaiianf1504]

+South Main Auto Repair Hey man no worries - I should of not given up in finding it before asking. After a couple three weeks of looking it was getting kinda bleak finding it. So I figured since no one else seemed to have it than maybe perhaps it had to be SO or a MAC or MATCO. So I started digging around the ole wonder web and WHALA - there she blows! It's a MAC part number. Got lucky on EBay as it was the last and only one listed. Sold as a 4 pieces in the kit - part item # SP 4000.

[@samrugtiv5563]

good job

[@jacobjerrell2692]

Hey thanks for making the video, I've been all over the place trying to figure out why the heat won't blow in my minivan. My father in law said it had to be the control board (digital temp control). Wen't to buy one of those, the guys at the store said it's probably just the blower motor or resistor. Anyhow.... I'm wondering if there is anyway I can test the amperage with a regular multimeter? I don't have one of the testers you used and I have a feeling they would probably be a little pricey.

[@junbug1love]

Dealing with the same issue with my girls van she's got the 2006 as well and just replace the expansion valve and the dreier Going to test the resistor in the motor tomorrow to see which one it is to get proper High blowing from the front vents on the dashboard

[@uprednecked]

i know man! those Chrysler vans suck when it come to removing the blower fan! I have done 2 of them and that bolt in the far back took me 30 minutes or so just for that one bolt! Great video Man!

[@SouthMainAuto]

Getting the bolt out wasn't my problem it's going back in that is tricky! Kinda makes me wanna make it "disapear" lol

[@VANEPS7]

uprednecked If the van were mine I think I would leave that tough to access bolt out in case I ever needed to replace the blower motor again. Just saying.

[@SouthMainAuto]

Oh man they are a stinker let me tell ya

[@cohophysh]

South Main Auto Repair so how did you get it out, I have been struggling for 40 minutes trying to get it out.

[@SouthMainAuto]

Brian Missildine Boy it has been a while I don't recall exactly. I remember it being tough though.

[@RLFLORES660]

Good Video, and yes, I too wish you had shown us how to remove and replace the blower motor. I'm a novice vehicle repair type mechanic (Auto Shop in High School 1966) and never used amp meters. Well, guess I'll just have to have my mechanic verify if the blower is bad or the resister or both. It's 98 degree's in Sacramento, Ca today and thus need the blower to satisfy my wife.

[@SouthMainAuto]

+Robert Flores Ahhhh whewww, that's a hot one!

[@evelez4749]

South Main Auto Repair my blower motor get hot

[@dnlmachine4287]

That blasted stand alone DC AMP meter in Canada is about $300-$700. FMFL I wish I had it sometimes though just for this exact situation. Dam Canada ripoff prices. Stay gold.

[@jeanniemausolf1718]

Have you made a vidio of how to replace the blower motor yet. This is what i need to replace on mine?

[@davidgoodman3749]

Happens to all of us at one time or another. I do learn from my mistakes, though

[@jgsb111]

Could I measure the mV with a multimeter by back probing since I don't have an amp clamp?

[@nealrehm6895]

Hi Eric, my 2005 F 150’s blower motor just quit yesterday. I watched your video for replacing the resister on the buddies F 150 and thought cool fifteen minute job! However mine has the Automatic controls. My resister cost 185 $ at the dealer. So I bought one at Napa ( not a sponsor) for 128 $. I installed it right in the parking lot. It didn’t help! Now before I purchased the resister I checked all fuses and relays per wiring diagram. Now having found any relays or fusses bad I pulled out the blower motor and quickly put 12 volts to it. The motor turned on,so I reinstalled

[@nealrehm6895]

Turns out I should have done the amp check! The motor had 332000 miles on it,guess that should have been a Big Clue!

[@2Small2Fail]

In your other related video, when you tested the resistor by checking the blower motor power connection while still plugged in, you had power at both wires and said this is not right. Can I assume when testing in this manner that if I get the correct indication (power at the green terminal, nothing at black) the resistor is good? Thank you! Thanks for the videos. They're very helpful.

[@mozfan2436]

I've got a 2014 Town & Country and the air system is making this whirring sound that gets louder as I crank up the fan speed. Is my blower going out? Could you tell me what I might be looking at for the repair? I was thinking maybe I could do it myself but if it was a frustrating job for you it would probably be impossible for an amateur. Anyway any info would be helpful, thanks.

[@shauno3697]

It's that one effing screw in the back humping the firewall and insulated by the carpeting! It's a good thing you didn't do a repair video. You'd still be editing out F-bombs. I was a taxi fleet mechanic for a couple years and 25ish of the vehicles in the fleet were 01-07 Caravans. I forgot how much I don't miss doing that job.

[@Mr81091]

I replaced my blower motor in my 2014 impala limited over the weekend and it worked perfect for half a day. But now its on hi even with keys out of ignition. it won't shut off. Any suggestions?

[@michaeledgecomb4506]

Loved the video found informative. I have a question, changed the resistor and blower motor in my 2004 dodge grand caravan. The new problem is the vent door in the blower housing keeps opening and closing by it self. Sometimes it will do it for several minutes and sometimes once or twice and done. Will not do it again until the van is shut off and restarted. Help?

[@CriticalThinker08]

you have to align it to the right hand side when you install the motor

[@Eastahtata]

What method did you use to replace the motor? I know from experience you can get access to that rear bolt at the firewall by removing the plastic cowling at the bottom of the windshield, and the passenger speaker I think, then using 1/4" 8mm bit on a flexible extension and getting to the screw from the top. Makes the by-the-book dash removal job a pretty do-able 30-45 minute job if you have someone to help turn the ratchet as you guide the bit.

[@SouthMainAuto]

I just did it in the passenger foot well. not to big a deal just a little snug with the re-circulation motor and door on the blower housing. One of Chrysler's finer ideas..

[@GRowe1978]

Admitting fault!? What kind of shop is this? This is not common practice!

[@SouthMainAuto]

GRowe1978 If your wrong your wrong...

[@GRowe1978]

South Main Auto Repair Not at the shops where I live! LOL!!

[@zhivago1955]

Should blower motor rotate freely? I removed BM to see if there was anything clogged inside the fan area because it had a grinding sound. Now that I see it doesn't turn should I replace it?

[@SouthMainAuto]

***** It should rotate freely yes

[@sham1234567891]

Hello! I am facing dire problems with a Mercedes-Benz OEM W202 C180-class Blower Motor Regulator Resistor 2108206210 and I had to replace that Regulator twice already. The last symptom is that the fan gets stuck on high speed even when the start key is off. What are the Ohms readings of a new Regulator? I am considering replacing the Blower Motor itself. Any source for good seondhand unit? Please help. Thanks!

[@mr.t2585]

Old video.. but measurmens can be way different with engine on and off. This 21amp with engine off is about 26 with engine on.

[@raymondchoate5687]

I had an odd issue on my buick park avenue my hvac system was not blowing I would kick the dash and it would come on. And this is what I lived with because this is on a 2000 buick park ave with close to 300k on it so I do not want to put a whole lot of money into it. At any rate I also observed that the water pump was bad so i replaced it and then the blower started working again. My question to you is why?

[@josephgrossjr9356]

What is your go to scan tool ? If you could only have one....... What would it be?

[@johnnywayne3443]

Chrysler minivans nearly always need a new blower motor when the resistor fails. Not sure which failure causes which, but it has always been the case for me. Every single time.

[@mohawkmike142]

How did you resolve it with your customer. Did you eat the second resistor and they bought the motor? Ripping into dashes is more fun than going to the dentist. Hey.. poop happens. Good vid.

[@SouthMainAuto]

moomike laloo No I covered the resistor.. it was my fault

[@kamerons76]

had to replace the resistor 4 times in 2 months finally got one that stopped blowing lol damn aftermarket parts only kept replacing it because of the warranty

[@ronlarusso2828]

Hey great job. Stop apologizing so much! Could very well be the blower motor was fine after you replaced the resistor. It was just the blower's time to go. After all, blowers do go without help from the resistor. Great job! Ron

[@SouthMainAuto]

Haha thanks Ron LaRusso. Yeah and ya never do know, what came first the chicken or the egg..

[@grzegorz16100]

South Main Auto Repair Egg;)

[@MyLifeThai371]

On my 2003 Silverado I have replaced 3 blower motor resistors, because the fan would not work at all. After the first one I installed a new blower motor. The blower motor resistors are still failing every six months leaving me with no fan at all. I need my defrosters to work during the winter. I am almost ready to put a 30 amp fuse with the 2 pig tails hanging out of it in the cab fuse box with 2 wires running to the blower motor with a toggle switch inline.

[@MasterScreenPrints]

I have a issue where my panel won't turn on. It was working fine but soon as the abs/brake light came on the ac panel will not turn on. Not sure of the problem.

[@Fargfromgroovin]

I have had conflicting accounts for my Chrysler Town And Country. I have a 2003 model and have been told yes and no to this question. Is there a cabin filter in my van somewhere? If so where the heck is it?

[@SouthMainAuto]

Fargfromgroovin in an 03 highly doubt it. It would be obvious and near the blower motor but I highly doubt it in an 03

[@esperanzaavalos1976]

Could it be the knob?mine i changed the resistor,the filter checked the fuses the back heater works but nothing in the front?can u help me?

[@larrymencke8632]

eric nice video on the caravan blower resister can anyone tell me where I can get electrical diagrams like you use in your videos thanks

[@SouthMainAuto]

+larry mencke www.bbbindustries.com/technical.html

[@wmichaels362]

Thank you Eric. I checked the engine controls wiring diagrams for my 2013 Sierra 5.3L. They are OEM or a very good representation. I have a subscription to ALLDATAdyi, but it covers only what I pay for. Free is much better.

[@mauricehinton5889]

My heat and A/C only blows on the highest setting. It doesn't do anything on any of the lower settings. What could the problem be?

[@hawaiianf1504]

Eric -- Great video. Thanks Bear Catcher ;) And really sound words wrt finishing my testing to 'make sure what really caused the problem' before I go all out. Great words of wisdom from you. Much appreciated. Another Question.. I have been looking on Amazon and EBay for the back probes your using. Cant find the ones with the clip loop ends to connect my meter leads. I can choke plenty of the dang banana plugs and of course the "it'll cost you 1million dollars" ones from Fluke. Can you please share where to get the back probes like ones you use?

[@SouthMainAuto]

+Hawaiian F150 I have so many that I use, give me a time stamp in the video so I can tell you the ones I was using...

[@hawaiianf1504]

+South Main Auto Repair they have a yellow bell end with a loop at clamp end for your meter clamp/clip scope on a rope to connect to.

[@hawaiianf1504]

+Hawaiian F150 sorry for reply was I. phone w/son to change his blwr mtr w/well new part

[@hawaiianf1504]

+Hawaiian F150. Sure is a pain in the ole buttdinsky to type semi smartly with big hands and a small phone keypad...

[@hawaiianf1504]

+South Main Auto Repair - Eric, I'm back on my laptop. lots easier to type =-b OK they are in the first part of this video kzbin.info/www/bejne/qHWqiIRqopKmmrc&feature=iv&src_vid=xAPCbUqCQ64&annotation_id=annotation_3006152859 at time stamp 4:09

[@Nightrailer]

Can you offer any advice/tips for making sure the air flap actuator is aligned upon re-installing the blower motor? I seem to be having a difficult time lining this up properly. Many thanks.

[@SouthMainAuto]

Steve O-saurus The re-circulation door?

[@Nightrailer]

A/C Recirculation Door Actuator. I believe thats what it is called.

[@SouthMainAuto]

You cant just select on or off to help with the install?

[@Nightrailer]

The actuator motor that drives the re-circ door moves too far once the car's been started. It tries to move a half rotation to the left and then almost two full rotations to the right. The re-circ door doesn't have the ability to move that far to the right and I'm afraid that the actuator motor will break the door.

[@SouthMainAuto]

Id have to look into this not something i am familiar with off the top of my head

[@assgrabberb]

So did you eat the price of the new blower motor and resistor? Or the resistor you previously replaced? How does that work?

[@SouthMainAuto]

I warrantied out the resistor no charge... they bought the motor

[@ivaneu1]

Thanks for sharing your mistake.

[@Mr92cadi]

that fastener in the back of the motor... what a pain. I work on 2003 and 2006 model Dodge Caravans. Postal

[@SouthMainAuto]

+christopher fuller makes a man go postal haha

[@Mr92cadi]

Yes it does

[@MattCavazos]

05 Pacifica..... Same problem, No front air 90% of the time. 10% of the time it will kick on. I replaced the resistor and nothing. Is it possible for the blower motor to be bad but actually work sometimes? By reading forums, tons of people are having the same problem with no fix. Any advice would be great.

[@SouthMainAuto]

+Matt Cavazos Blower motor could be bad sure... you'd have to test it though

[@MattCavazos]

+South Main Auto Repair Pretty much the same way you did? Checking the amperage? Thanks man for responding. Huge help.

[@SouthMainAuto]

Just use a test light is all.

[@MattCavazos]

+South Main Auto Repair But thats the thing. I know it works because 10-15% of the time it cuts on and blows cold as ice. So what would I be testing for? To see if its getting power when its not working?

[@SouthMainAuto]

That is right. Test it when it is dead. I assume the blower quits right?

[@rickyd6126]

Hey I know this is old but what if you changed blower motor and resistor and I still get nothing..motor doesnt turn on at all..there is power to both.

[@773steve]

how can i just bypass the whole restor and just have it on high and off

[@rusco321]

I thought high speed doesn't run through the resistor or is that it doesn't resist current flow on high?

[@SouthMainAuto]

Your right. On most vehicles it does run on a separate relay or bypass the resistor completely. However on this on it does run through the resistor (dk blue w/ gry stripe wire) but like you mention it runs through it with little or no resistance then runs through the thermal fuse with all the other speeds. Good question!

[@johnmckamy6398]

Eric O is a strait up guy , when your good you don't have to be shifty .

[@natechristiansen11]

I have a 2009 dodge avenger with 132k on it. I have noticed that the blowing strength when the a/c is on high is severely decreased and couldnt even keep the car cool on a 78 degree day. What could this problem be. Thanks

[@SouthMainAuto]

natechristiansen11 Is the cabin air filter plugged

[@natechristiansen11]

South Main Auto Repair I have not checked and it has not been replaced yet. I will change that out and let you know. Thanks

[@natechristiansen11]

South Main Auto Repair that was it. Huge difference! Thanks

[@terrychristle1477]

Have a 05 Pontiac Vibe (same as Corolla) fan only worked on high. Replaced the resistor, and worked on all speeds (fan worked on all speeds)....now back to only working on high....any suggestions? My guess is a short or something that is killing the resistor? Fix only lasted a couple weeks....

[@SouthMainAuto]

what have u tested so far?

[@terrychristle1477]

South Main Auto Repair I haven't checked, kids car and he's at school 4 hrs away. home on tuesday, was thinking of replacing blower assembly and resistor....he says fan is loud.....thoughts?

[@SouthMainAuto]

sounds good

[@kamdaddypurp3341]

I remember I had a 98 es dodge intrepid and the main unit was broken u couldn’t see the degrees in the car but it was just stuck on high and the shop wanted to replace the main unit I was like man idk so I did a little research and found out the blower motor resistor did this and all I had to do was re solder a chip and the display worked on the unit again if they would’ve replaced the main unit that would’ve been way more than just the resistor especially when the they found out the resistor was bad

[@josephinbody676]

I have a question for you bud and I hate to bother you so much I just took my stuff down and had the battery checked again and the alternator they're telling me my alternator is fine and my battery is fine but still my lights dim inside and outside but all their equipment tests show nothing wrong with the alternator or the battery second question blower motor went out about four weeks ago maybe a little longer did not drive the car much anyway or truck I should say 2008 GMC and everytime I see a resistor coming out of these vehicles it looks nothing like the one I have I have a bunch of metal pins that stick up looks like a bed and nails the replacement part has more then my original how do I test this thing wish there was a way I could p.m. you or do you have a Facebook page I'm kind of lost here I don't have the money to take it to a shop that's why I'm trying to do everything myself any help you can give me I would greatly appreciate

[@rusco321]

So, it needed a new blower motor resistor as well?

[@SouthMainAuto]

Yeah sorry about that I should have made that more clear. I actually put one in real quick (off camera), was gonna pull it back outside and thought.. you know... I better check that motor just in case. Not unusual to see junk Chinese parts fail but sometimes it because we neglect to go a little further in our diagnosis. Oh well....

[@johnkimmel2612]

I hate it too when I pull out my vantage pro from the old tool box, only to find its battery low (again) !

[@esperanzaavalos1976]

Thnk u i have a question

[@cobraninetysix3883]

Great video....., that could have happened to anyone. What would be an affordable meter to test current draw? Thanks Chuck

[@SouthMainAuto]

Cobra Ninety Six I would look for an inductive style amp meter if it were me. Maybe a fluke. Not real sure haven't been in the market in a while.

[@motochiptuning]

but gigh speed of fan dont go through resistor,it has max pover direct,only othter positions of speed goest through resistor to slow the speed.

[@762531971]

Do one on a Grand Prix or Grand Am. Replaced the blower motor and resistor multiple times. But this time nothing. Frustrating

[@Nightrailer]

So.....I replaced the resistor on my 2006 Town and Country. It still did not work. I'm thinking that the blower motor is indeed bad, but is there anything else it could be? The heat/air does not work on the front, but it works for the back. Any advice, South Main Auto Repair ?

[@SouthMainAuto]

Can you check for power at the blower motor?

[@Nightrailer]

South Main Auto Repair I'm not really sure how to do that? I have a volt meter and I've ordered a voltage probe light and a amp clamp meter for this project too.

[@SouthMainAuto]

Just unplug the motor use a test light across the plug KOEO blower on high the light should light. If it does then you need a new motor.

[@SouthMainAuto]

Steve O-saurus Yep that's it

[@grzegorz16100]

Steve O-saurus Are you trying to say that you just watched this video and you didn't learn anything and just mindlessly replaced resistor?!

[@darkwolf06vheb5]

Rule of thumb. Blown Resistor, change blower as well. Bad blower overcooks resistor....

[@motochiptuning]

so motor blewed pack again that no high speed working?

[@SouthMainAuto]

Yeah, the high amperage draw of the motor ruined the resistor again..

[@grzegorz16100]

But how to check the resistor with multimeter??

[@SouthMainAuto]

Gregory May Is that a question?

[@grzegorz16100]

South Main Auto Repair Yes. Is there a way to check the resistor with multimeter when removed from the car?

[@SouthMainAuto]

You could if you knew the values of the resistors you were testing. I looked on a wiring diagram and they do not list them. You check for resistance or an open but as far as I know that would be it...

[@grzegorz16100]

South Main Auto Repair Thanks. That is what I thought. Anyway what is the point of testing it?

[@SouthMainAuto]

What is the point of testing a blower resistor you mean?

[@mozfan2436]

I've got a 2014 Town & Country and the air system is making this whirring sound that gets louder as I crank up the fan speed. Is my blower going out? Could you tell me what I might be looking at for the repair? I was thinking maybe I could do it myself but if it was a frustrating job for you it would probably be impossible for an amateur. Anyway any info would be helpful, thanks.