I believe I got this same problem after getting OEM coil packs, boots, and spark plugs. Problem isn't fixed after all that need to try this out thanks for posting this trying to get my car back right soon.
@namnug695 жыл бұрын
Legit AF! Sprayed brake cleaner in the same spot and white smoke came out of the exhaust. Don't know how to say this but, I love you.
@akob81694 жыл бұрын
I got the same problem how did u fix N how much it cost u ?
@namnug694 жыл бұрын
@@akob8169 you have to replace the intake plenum boot. At least that's what fixed mine. The part cost about $30 and it took a couple of hours. I followed a KZbin video step by step with no problems. When I removed the old one it had a huge hole which was the vacuum leak.
@ryanwilliams98548 ай бұрын
@namnug69 I put a new starter on my 01 deville an replaced that intake plentum with a new dorman one an its not getting a tight seated seal an causing my engine light to come on an its running crappy
@robsanders659915 күн бұрын
Do freon and it will really smoke
@carywollenweber44842 жыл бұрын
Thanks Daniel, nice for you to share all that with us. Before I used carb cleaner or starting fluid, but brake cleaner is the best and, of course a scan meter, listening and watching where the vacuum leak is. The throttle body seal is notorious for vacuum leaks. -We all appreciate it. 😀
@daveconway88334 жыл бұрын
@1:50 that first line you disconnected. What is that? My 2000 deville has it plugged with zero hose coming out
@chsbadsly5 жыл бұрын
Im so glad to find your video, even the other one on my exact car, corolla 2004. Thank you for your input I can't wait to try it out!
@sunbow458 жыл бұрын
Very informative! Thank you for uploading the video!!
@davidjames6662 жыл бұрын
THANKS!! I shall use this to find the leaks in my rusted out brake lines
@rajachampatiray33988 ай бұрын
No you shall not
@josephpacelli3691 Жыл бұрын
Are these Devilles with the Northstar engines known to have those vacuum leaks mine is a 2003
@keenanhatley71842 жыл бұрын
will this problem come with a little smoke ocassinally from under the hood and over heating
@wyvern45888 жыл бұрын
Such a nice engine when it's running right, a total nightmare when it isn't. For shame GM.
@nathanaellensch28948 жыл бұрын
its not even gm. its a cadillac with a northstar
@amberlynn69148 жыл бұрын
Wyvern Cadillac is owned by GM.
@nathanaellensch28948 жыл бұрын
But gm didnt build the motor now did they
@wyvern45888 жыл бұрын
Nathanael Lensch I don't know if you are playing stupid or genuine stupid, GM designed and made this engine for Cadillac- GM's high-end luxury line of cars.
@nathanaellensch28948 жыл бұрын
cadillac is owned by gm. they still build their own motors. gm does not build them. cadillac does. gm builds chevy gmc and buick only
@markbouldin65132 жыл бұрын
If I'm remembering correctly my 98 Aurora with 4.0 Northstar had a backfire valve under the plenum, kinda like a spring loaded butterfly valve and easy to locate on my engine as the leak caused it to whistle........ I love the Auroras have two of'em and made the 98 with 305k miles a parts car for the 96 with 60k miles.... Honestly couldn't afford to maintain the Auroras if I had to pay someone to repair them! I'm a novice/parts changer, I have the "3" GM repair manuals and real mechanic's on the web to help so Thank's..... Love the cars but they're maintenance nightmare!
@mrkongsimr3 жыл бұрын
If a car has any leak can that cause it to become sluggish sometimes ,like in heat ?? Thanks !
@flatboat67 Жыл бұрын
whoever changed that throttle body wasnt paying attention
@CuttyAll11 ай бұрын
So instead of removing the manifold can we just remove the throttle and replace gaskets? Or whatever it was that was affecting that side.?
@CuttyAll11 ай бұрын
I’m just saying which would be easier/lass work
@stevensapyak79718 жыл бұрын
7.14.16. Those plastic upper plenums have caused a pleathora of headaches for owners!......i.e......GM 3100/3400 & the venerable 3800. If you change the lower intake manifold gaskets to the metal framed ones, & flush the infamous DexCool from the cooling system, you will go along way towards an extremely long lived engine. A very informative video! 👍🏽👌🏽😎
@zuone35734 жыл бұрын
Sorry.bit confused. So dexCool bad for northstar? Or should i use Dexcool only for my showroom condition 96 deville.with 90k on it.
@stevensapyak79714 жыл бұрын
@@zuone3573 11.14.20. The original DexCool®️is touted to last 5yrs/150k miles....it is A marketing ploy by GM™️,to make their vehicles appear to cost less to maintain over a certain amount of time for the owner. It doesn’t work out that way in the real world! If you go no more than 3yrs/50k miles you will be OK with using DexCool®️, but I just change mine with the mixes with any type of antifreeze, and change it every 2yrs/30k miles. If you look in side of your coolant overflow tank and it looks grungy and not orange colored, it’s past time to drain and flush your radiator and cooling system.
@alexlanders63695 жыл бұрын
My only issue with the video is .... why would you order and install a maf sensor that was recommended by a part store with out running diag and proving or eliminating that as a probable cause?? I mean part slingers rarely even get me the correct part even when you give them the engine code or vin number. Why leave that to chance?
@My-Pal-Hal2 жыл бұрын
Well. That particular part covers an Extremely Wide Spectrum of GM Products. So concerning that particular part. It's probably correct.
@ChevySS19682 жыл бұрын
Excellent vid, thanks very much!!!!!
@petworld97275 жыл бұрын
Nice video! I appreciate the info...Thanks for helping me find that leak... Now i got to pull the intake off to get to the throttle body coupling boot/gasket... Quick question... How would you take off the idle pulley on a 04 cadillac deville? I can't get my hand or socket/boxend wrench in there... I need some advice on how to attack this
@alaskanjammer6 жыл бұрын
So you say it is between the manifold and throttle body...so is that not a throttle body gasket that needs replacing?
@REPAU11 ай бұрын
what was the part called to replace?
@claytondeeds58128 жыл бұрын
Need to invest in a smoke machine snap on makes a good one. Find vacuum leaks super fast
@jeffjeff44776 ай бұрын
Awesome video Thank You!!!!!
@jasonmorales9974 жыл бұрын
Which scan tool do I need
@dakeda20246 жыл бұрын
its odd it still drives without missing … my 96 DEVille had the 1074 codes . and the prob turned to be maf even though I cleaned it and it wasn't a direct maf code but that was the prob.... it was still the bad piece .20 plus years old ... I ws thinking the intake gasket changed that .. the plenum boot are notorious ..im glad I don't have one on the 96//.the engines are great without the codes … learn alittle on diagnosing it is a must ..you will narrow the prob down ..I hate to just throw parts after parts not having a clue . just do a little internet research ect..//
@jamesbrettwhite78212 жыл бұрын
Thanks for sharing 👍
@brianmoore54988 жыл бұрын
i have the same exact craftsman scan tool how do you go about getting dynamic date while the engine is running? thank you in advance ( if you have time) and also I am a big fan of your videos. take care!
@Claudio-j2z Жыл бұрын
Whats the scan tool model?
@jonathangrubbs23298 жыл бұрын
Hello Daniel have you noticed any more over all power in your new motor compared to your old one?
@cyrysvonnachtseite4546Ай бұрын
2001 Eldorado i have. No vacuum leak. All parameters ok. Completely diagnostic….Was at the mechanic. All tests performed.. everything is functioning. New MAF …. All new 02 sensors…. Still one lean code. Or the other. Or rarely both …
@wendystark74138 жыл бұрын
what is that replacement part called? Please help... That's what is wrong with my 95 cadillac eldorado
@mariovillegas907 жыл бұрын
wendy stark kinda of late but plenum duct.
@wendystark74137 жыл бұрын
Mario Villegas thank you. I finally found one on Amazon.com
@xANGRYSHOCK Жыл бұрын
Cadillac DTS PURGE VALVE CODE. misfire, lean. Now it's crank no start.. The stalling is after fuel pumps turn on and humms.
@BlownMoneyENTАй бұрын
same... howd you fix it ?
@perrymike158 жыл бұрын
Why dont you just use something like carb clean or starter fluid? That would run cleaner, right?
@TheWallyjp8 жыл бұрын
yes you can, but brake clean does not leave a residue
@DanielJaegerFilms8 жыл бұрын
You're right, it would run cleaner, but unlike brake clean, it will leave a residue on other engine components while spraying for the leak.
@johnnyg54763 жыл бұрын
Brake cleaner dries out seals and should not be used to detect leaks. Carb cleaner and or starter fluid would be a better option.
@brianmoore54988 жыл бұрын
i have used an unlit propane torch to do this. when rpm increase you are near the leak.
@fukkawi7 жыл бұрын
Brian Thanks I'll give it a try. Finally, Finally, found a vacuum leak that causes rough idle and stuff that 2 mechanics missed. Can't wait to try the propane torch test.
@redneckpower3948 жыл бұрын
Quick question. I have been watching your videos for a while now. And I have seen that you have worked on GM, Ford, and Chrysler products. All of which were still under factory warranty. So I am wondering how this is possible since each vehicle would go to the dealer for warranty work, how is it you are able to work on each one?
@FredyInjecar4 жыл бұрын
Thank you i just found the same problem
@scottdaugherty16964 жыл бұрын
pcv leaking?
@davidjames6668 жыл бұрын
What a beautiful car. Someone needs to take it out, and drive it hard to get rid of that carbon rap. Notice no spark plug wires as the coils are on top of the plugs. I have a 1996 Northstar in my showroom Deville. Hope they change the coolant every 4 years to keep those headgasket threads healthy
@CarsandGuitars1008 жыл бұрын
I found the problem, it's a Northstar V8.
@68camarorsss338 жыл бұрын
The Laughing Philosopher *and guest lol so true!!👍
@keaganbutler79248 жыл бұрын
The Laughing Philosopher *and guest they aren't even bad engines
@martintodd1971Ай бұрын
I got 140,000 miles on a 2003 DeVille. Runs like new, and I beat the shyte out of it. And she likes it. I had a 1999 DeVille before this one, and never a problem, till I flipped it, not my fault, and I was surrounded by pillows, not a scratch, in front of a police station.
@albertoleon47548 жыл бұрын
Where are you located ?? Honestly if I have an issue with my car I rather have you look at it cause this mechanic shops I don't trust at all or my dealer
@edwardmyers17468 жыл бұрын
Alberto Leon i think texas
@albertoleon47548 жыл бұрын
Edward Myers darn!! I'm in California
@albertoleon47548 жыл бұрын
Gryazev-Shipunov I've been having issues with my car where it jerks when accelerating I've had this issue since I purchased it no engine light is on I've taken it to the dealer and they said they can't find an issue and nothing is wrong. They told me it's normal but the jerking is so strong at times it throws you back and fourth on your seat at times I really need help I have no clue what's causing it and I don't want to be spending money if I don't have to
@taredrickmiller8617 жыл бұрын
check motor mounts
@Adam-bw4lw8 жыл бұрын
why not use water??
@abyssunderground8 жыл бұрын
If water enters the engine that's bad, very bad. If it gets into the cylinder you can destroy engines very easily because water doesn't compress or burn. Not to mention the issues it might cause with electronics if they get wet.
@Adam-bw4lw8 жыл бұрын
abyssunderground yeah but that amount of water arent hurting an engine(no hidrolock),you dont have to get water over the conectors:)))
@abyssunderground8 жыл бұрын
Perhaps not in small quantities, but water also wouldn't affect the readings he was using to diagnose the issue since it doesn't burn.
@Adam-bw4lw8 жыл бұрын
abyssunderground but in the other end you hear the engine changing rpm when you hit a vacum leak:)
@cebruthius8 жыл бұрын
Tool Guy, more like Cocaine Guy
@scottrudner88348 ай бұрын
Nice video.
@jwlindem12 жыл бұрын
Good job.
@reweydewy8 жыл бұрын
common issue on the Northstar 4.6
@martintodd19713 ай бұрын
WHY didn't it throw a p0300 code. IT should have. When there's a vacuum leak after the Mass airflow,it always throws P0300.
@stuartraydroge5021Ай бұрын
Not always. In fact, it won't always throw a code when you have a vacuum leak
@tjy33888 жыл бұрын
I've seen multiple of these boots fail
@federicovasquez87092 жыл бұрын
Thanks man!!!!
@cyrysvonnachtseite45464 жыл бұрын
I have an Eldorado. I have to do this job every 2 years. The mice. Chipmunks and squirrels get into the valley pan where the starter is and chew the wiring and rubber plenum boot. So when it’s starts to idle rough or a screaming high idle. That’s the problem. I Bitch to the neighbors to stop feeding the rodents.
@FrenchValleyAirport8 жыл бұрын
Burn that engine down
@RicardoPCGamer8 жыл бұрын
is it me or does it sound like that engine is lightly knocking?
@aaronjones83418 жыл бұрын
you're not the only one
@B-Rad-Ry8 жыл бұрын
Mine makes the same odd sound.
@edwardmyers17468 жыл бұрын
Ricardo The Computer Wizard its part of gm so youll hear the knocks like a chevy engine and it is a 32 valvue 4 values for 1 cylinder so there is alot of moving parts
@geminijtwa296 жыл бұрын
Mine make that noise too...
@genegeneish5 жыл бұрын
If its cold you get a little ticking. Once valve train and pistons warm a little, noise goes away. Ive got 140k on my third n*. And its one of the cleanest eldos you'll see.
@MitchGrooms8 жыл бұрын
GREAT VIDEO
@AhPhoey7 жыл бұрын
Good video.
@UPRR-nq6uj7 жыл бұрын
Thanks Cool Video
@zakkrick7 жыл бұрын
This the same my friend that is an auto mechanic told to do too to find links
@BigBoy40058 жыл бұрын
that godawful rubber boot between the coolant crossover and the manifold wasn't one of the better design changes GM made to the N* in 2000. The earlier design with the TB mounted directly to the intake was better (had coolant hoses to the TB to prevent icing). Somebody probably changed the starter, by the book, and tore the boot; it's best to unbolt the 3 throttle body bolts and slide the manifold straight up with the plate and boot still on it.
@TATTDIS2 жыл бұрын
Does the intake manifold have to come off for that? I've been having horrendously high idling lately.
@BigBoy40052 жыл бұрын
@@TATTDIS depends upon the year; prior to 2000 it does not
@cyrysvonnachtseite45463 жыл бұрын
The rodents luv to gnaw on that plenum between the throttle body and intake manifold. Had to do mine twice so far. I just turned 70,000 on a 01 Eldo
@bobcaracappa8597 Жыл бұрын
Dan it don't take long to fix n u can make some money for your toys buddy
@stevenmoss98368 жыл бұрын
first
@makingbakersfieldgreatagai92037 жыл бұрын
I hate CADILLACS
@filthyanimal8745 жыл бұрын
MAKING BAKERSFIELD GREAT AGAIN, all homosexuals hate Cadillac’s.