Common GM Truck and SUV Transfer Case Problems
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- เผยแพร่เมื่อ 2 ต.ค. 2024
- There are some common problems with the transfer case in GM trucks and SUVs. In this video, Andy explains some of those problems you may face with your vehicle, and suggests ways you can repair or replace parts to resolve those issues.
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⚠ DISCLAIMER:
While 1A Auto strives to make the information provided in this video as accurate as possible, it makes no claims, promises, or guarantees about the accuracy, completeness or applicability of the content. No information contained in this video shall create any expressed or implied warranty or guarantee of any particular result. All do-it-yourself projects entail some risk. It is the sole responsibility of the viewer to assume this risk. 1A Auto is not responsible or liable for any loss damage (including, but not limited to, actual, consequential, or punitive), liability, claim, or any other injury or cause related to or resulting from any information posted in this video.
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Is there any different problem with the Sierra Denali 6.0 AWD?
What's the name of part can't find it on 1a parts page?
I have a 05 chevy Silverado and my four wheel drive keeps engaging itself. Which is weird because I have to manually put it in four wheel drive. What can this possibly be? Transfer case maybe?
9 out of 10 times I personally have changed any seal on any part of a vehicle transmission transfer case engine it doesn't matter what, if the seal is leaking just changing it is not usually the case. If the vehicle has sat a long time or is old maybe, but if the seal goes bad it's usually because whatever it is sealing is moving around from a bearing or bushing that has gone bad. Always always check that before just tossing in a seal and save yourself a major headache from doing things twice and possibly looking like an ass in front of a customer also. Again that is just in my experience so others may have a different option but it's always better to check something and make sure rather then just throwing new seals in things.
Thank you for throwing the encoder motor code on the screen!!! Great videos on this topic my head was getting sore from all the scratching
Done with dealerships. Disgusted with them actually, so this is the info I need to be shop independent. Thanks.
My truck sounds like one of the wheels has bad ball bearings. But dang I think it's the transfer case 😵💫
Hands down your channel is the absolute best! And no BS. Thanks a ton. You've made me a "certified TH-cam mechanic "😂
So what I just collected from this is if your going to just completely pull the transfer case out just replace it and the connectors. As long as it’s within budget of course.
Great job GM! Purposefully designed in failures. Idiots with accountants and lawyers!
You mean brilliant people with brilliant engineers, accountants, and lawyers... and lobbyists... and trade groups....
My 07 chevy classic transfer case likes to clunk alot, was told by couple sources that the chains are slapping/loose
About the pump rub issue. It's not an IF but a WHEN problem. My dad's 02 GMC had the pump rub failure and ended up having to replace the entire t-case because it had leaked all the fluid out and was ruined. I have an 06 Chevy and after seeing what my dad went through I decided I better pull my t-case and fix it before it did the same as my dad's. My t-case had about 90K less miles than my dad's but the rear case hslf was definitely showing considerable amounts of wear in the pump housing and would've eventually been a hole or holes 100%. MA auto (Merchant Auto) builds and sells a "pump rub kit" that totally elimates any adverse wearing effects from the fluid pump to the rear case half. The tiny steel plate GM "bandaided" in the later model cases will also fail (mine was broken and was stuck to the debris magnet) so that is not recommended. The MA Auto kit was about $80 which is WAY less than a $2500 t-case!
My 98 K1500 is actually "like a rock". Manual 4wd shift, linkage was gettin funky, slipping it into nuetral by itself. Well had low fluid, topped it up, runnin "like a rock"
So it's not moving under its own power?
1A is #1! What are the indications or symptoms of a bad T.case?
I have a99gmc suburban with 246 transfer case .auto 4 wheel drive push button.it was leaking fluid.internal pump wore a pin hole in rear transfer case.i got a rebuild kit an back half of case.friend of mind and owns trans shop.we rebuilt it an need chain installed .no more leaks.this is common on246 new process t cases.99 to 07 246 t cases.my other friend has a2002gmc 1500 pickup with same t case.his son ran the truck out of transfer case fluid by detroit it smoke t case.case was not salavagable.!
I have a 05 tahoe My dash tells me maintenance 4wd would that cause my truck to go in limp mode. If so would that be the sensor?
My 04 Yukon Denali I think the transfer case is growling. Is that possible? Just did a fluid change and barely any fluid came out.
I think my t case is growling on my 99 Sierra. I guess it could be the front diff growling for all know. Did it get any better after adding fluid?
Good luck ✌️
Do you have a video to show how to do the case half replacement
Very helpful. Mine in my 2006 Silverado had a pin hole leak and a local shop said "replace the whole thing for $4000" said no. Glad i know what to do if my backyard fix doesnt hold.
So I’m getting my transfer case replaced the transfer case has 53,000 miles, After replacement will my car mileage change or how would I know that my mechanic put in my transfer case with the 53k miles on it ?
Should the drive shaft coming out of the transfer case to the front diff be spinning in 2WD for a 2014 GMC Sierra 1500?
Came here because I just shattered mine driving home, somehow it kicked into 4x4 on my 08 avalanche while driving on a main road, I now own a 2 wheel drive
Hands down the biggest issue is the drain plug hole cracking. I did a standard fluid drain and fill and when torquing back down to factory specs, I watched the case crack. Major failure on GMs part. Cheapest fix is JB weld for aluminum. The right fix is a $170 back half case on the cheapest end. GM cases are $400+
+2SSRecluse Thanks for the feedback!
Love watching the motivation man. Every video saving my life from all the bad things happening in my life for the last 2 years now and still continuing everyday sometimes. Especially the last years. A car accident in my Yukon Denali and I shattered my left leg shen bone that morning at 6:am ( January 3th 2018 )and then now to finding out my wife of 7 years now has been cheating on me for awhile. So I'm starting the process to start be a parts. I have a 10 yr old son from my first x, a 4 yr old daughter with my soon to be x , and now we separating she saying she is carrying again. So much fun in life lol . Keeping the up beat emotions bout every thing will get better soon.
Been through pretty much everything you spoke of. It can always be worse my friend. Remembering that at the right time can get you out of bed. You are now free to complete the things for yourself that you never had time for. Dig deep, be stoic and grind. Good luck.... Also, don't know how much residual pain you have but I'm mostly metal from my hips down so I have a fair amount of pain on a regular. I take Kratom instead of narcotics and my quality of life is much better than it was with pain meds. Takes a bit to get used to/good at but has been totally worth it.
My encoder motor failed. TIP- When you get a new encoder motor to replace it DO NOT plug the harness in and push any of the 4x4 buttons before you mount the motor onto the transfer case. I had a hell of a time getting it clocked correctly again👍🇺🇲
How do you know if it fails?
Whaay would anyone want to even try that. You're supposed to put the tcase in 4 hi before you start. It it won't work you have to do it by hand. The instructions already say not to alter the position of the motor
my engine light lit up on thursday after getting new exhaust since it had a leak and as of yesterday (9/14/24) i have a service 4wd msg on the odometer. according to the shop it's either a rear main seal leak or a transmission leak and won't know till monday 9/16/24
I notice my shifts are hard I put Lucas oil transmission fix into it it feels a lil better for a bit but then goes back I’ve checked fluid it’s not burnt and no leaks it’s a 2005 gmc canyon someone please help it’s getting a lil worse every time I drive
2002 Chevy Silverado 1500HD
P0502 CODE
I replaced all the speed sensors on the transfer case itself, but still no luck. speedo isnt working and shifts rough. it threw the code when i was on the highway and hit a bumb and made me come out of cruise control and was shifting irratically. would there be another sensor im missing?? or bad wiring? i did notice the face of one of the sensors had been worn. lately i noticed it will work sometimes but when it shifts into 2nd hard i lose speed readings.
Ive done my best to try and research what the issue is before i take it to the shop. If anybody might have an idea please comment and it would be much apprecitated!!
If i had a garage and all the tools id do the work myself and take off the front differential what needs it not take off the back transfer case thats not broken our mechanic is wasting his time
Generally lack of maintenance creates most issues and then what a piece of junk right?
Good educational video, I have a 1997 Chevrolet Silverado 4x4. I know the actuator needs to be replaced, the transfer case stopped working and had it overhauled and still won't work. The actuator didn't get replaced so I assume that's what needs to be replaced. Thanks for the great videos you post, keep up with the good work.
+Fred Martine Thank you! We love empowering our customers and showing how to perform DIY auto repairs with our high-quality auto parts. 1AAuto.com
Same thing with my 97 Chevy Silverado
So I've just had the entire drive train replaced in my 2008 4x4 suburban and when I try to use the 4x4 it says service the system and will not disengage unless I do it manually......Is that the electric motor sensor you showed at the end of the video.....
What ended up being the issue?
it also started in 4 low last night which was odd and it never did that even tho i owned my 04 chevy avalanche z71 4x4 for almost 2mo
how come i can only shift into 2H and 4H but I can’t shift into 4L with my floor shifter? i have a 2006 5.3 silverado
Got a 94 silverado k2500 4x4 350tbi with a 4L60E transmission. I only have P and N. Was just driving Thursday dec 17th 2020. I can feel it engage gears and my idle changes. But no moving in any gear. And no check engine light. Please help.
+1968 Dodge Dart Restore We wouldn't be able to diagnose an issue like that here, you may want to have a local mechanic take a look at it. Thanks for checking us out! 1aau.to/m/Shop-1AAuto-c
My switch is stuck in neutral and I can’t click any of the other buttons to get into 2 high, 4 low, or 4 high. Transfer case is stuck in neutral what do I do?
the hole that get's worn into the case is from the fluid pump shucking back & forth ,there is a steel protector plate avallable to prevent this.
I really don't see how will it drive with a new transfer case but a broken front differential or switch gears from 4wd hi or 4wd low to 2wd my question is hows that gonna work when we heard the front differential break after we turned the corner
I say the mechanic will see fixing the transfer case still ain't gonna fix the no drive or reverse problem long as the front differential gears are broken
So it's actually not called the front transfer case its the front differential thats broke so i got the naming wrong but its whats broken the mechanic thinks its a bad transfer case but its not
He thinks once the back or middle transfer case is replaced that the truck will have drive and reverse after that but i don't think so because i heard the front differential rattling bad and just before we turned around the corner then it broke and wouldn't drive or reverse so its like its stuck in neutral the front differential sount like there was a metal plate dangling and rattling around bad
But the mechanic says its a bad back transfer case and thats our problem after its fixed we're good to go he says.
Would any of these cause a little on/off humming noise ?
I have an uncommon problem.my tone ring is damaging the tips of speed sensors I have a po500 that I can’t get ride of unless i replace the case or rebuild mine
Do you have to flash the computer after a sensor replacement for code C0327?
I tried shifting from 2HI to 4HI but it wouldn’t shift and went into neutral and can’t get out of it
GM problems? Nahhh that cant be😂😂
Good video 1auto
+Serious Thanks for checking us out! 1AAuto.com
I got a 2001 regular cab work truck four-wheel-drive Chevy 4.8 and my rear driveshaft to the transfer case has up to 2 mm of slop when I push up on the shaft if there’s no oil on the ground could that mean that my transfer case is almost empty because there’s some oil & dirt surrounding the seal but no oil on the ground it vibrates over 40 mph and worsens with speed please help thanks.
Can u do a video on the lines and wireing vacuum lines for a 07 gmc serria transfer case
My is stuck in 4wd on 2016 escalade. Need help.
Wish you could work on my 07 Tahoe mines want switch to 4wd
Is it making a weird noise
I just bout an 83 4x4 gmc suburban. i know GMC changed it in 87 but what did they cange. I cant find any information for a part number on either one.
I have grinder noise coming from flywheel and transmission area on 07 hummer h3 could it just need flywheel replaced
+Alejandro Delgado-Garcia We wouldn't be able to diagnose an issue like that here, you may want to have a local mechanic take a look at it. Thanks for checking us out! 1aau.to/m/Shop-1AAuto-c
I bulletproofed my truck supposdly in a shop called"precision automotive and diesel ".the mechanic Rob told me he fixed the truck and I told him whatever u see wrong fix it.He charged me for a used injector 1900$.It was not part of the bulletproof job but I trusted him. I drove the truck and parked it in a clean parking lot with 250$ a month. The transfer case is leaking oil now and he said it's not his fault. Knowing that the truck was NOT leaking before I took it to him!!!
90% of the mechanics are scammers.
Now I want to fix it at home.any suggestions?
I’m in the process of taking mine out now and didn’t think of the gasket or seals. Thank you
How do you have over a thousand Chevrolet videos and ZERO for showing an easy fix for a common problem? This video talks about a tailshaft seal and how it is an easy fix for a common problem but you have zero videos on the procedure.
Dude. If you don't know how to replace a seal already. Then you really SHOULDN'T. Be attempting to repair a vehicle anyway. Which is why. His videos don't show that very simple procedure. Every shade tree/back yard mechanic. already knows how to do.
I have A 2000 AWD Astro was driving and motorist said You have smoke coming from underneath immediately I pulled off the Fwy a voila there's my problema...Thanx...BTW She has 263k clean as a whistle underneath CA car baby...zero rust...
My mom recently hit something on the front passenger side of her 2003 silverado. Now when you put it in 4x4 there is a friction noise coming from the front passenger side. Also doesn't want to go back into 2H. I have to put it in 2nd go up to 15mph and drop it in second for it to go into 2H. Any ideas on what this might be?
My 2007 Avalanche ltz in cold weather says service 4x4 or if indrive it for a while in 2wd (20mins) and the switch it to auto its fine but when i turn on a wet road it feels like the 4x4 is binding. Changed all the fluids with what they spec and still does it. . Like i said when the truck is driven for more than 20 minufes in cold it switches to 4 high and auto but when in auto it feels like its binding. Not sure what it could be.
Just bought a brand new t-case for my 04 silverado, and its leaking from the gasket from the transmission to the trasfer case. Will it leak into my transfer case or should it be okay for a little bit till i can fix it. I work the night shift so its a little difficult to make time to fix it. The transfer case only has 1,500kms on it and i would really like to avoid blowing it up, any help is appreciated 😅
The oil is from the transmission, keep an eye on the tranny oil level. The oil isn't pressurized so the transfer case seal should keep it out.
Only drivers side rear wheel and passenger side front wheel seem to engage in 4 wheel drive. What could be my issue? No traction while plowing snow.
I have a '01 Durango that my wife picked up for me. Just wondering if I can drive it around with the transfer case being bad in it without replacing it as long as they keep it in two-wheel drive and maybe take out CB axle going to the front wheels meaning drive shaft going to the front wheels. Can I still drive it?
I have a 87 K5 Blazer np208 transfer case it jumps out of gear in two-wheel drive makes nothing but grinding sounds have to put it in four-wheel to make it home any idea what my issue is? Thanks for your time
Adonde queda su compañía de mecánica tengo un problema con track case de una suburban 2007 1500 me dice que quiere 4well drive service la lleve al diler i no le isieron nada me cobraron mucho sin un arreglo no se si ustedes me podrán dar su dirección estoi en New York
I Have a 2013 gm 3500 dually. Put truck in reverse no noise at all but will not move, acts like it’s in reverse. Put truck in drive, loud clunk noise, push gas pedal halfway to floor board and barely moves 5mph. Any idea what this could be??? Really could use some advice
I feel like this could be wee mans dad !
Even sounds like him
My 2022 GMC Sierra 1500 Limited had a transfer case leak at only 28,000 miles. I’m taking it to the dealer to figure out why it happened
I have a 2005 Chevy Tahoe and when it's in two wheel drive for some reason the transfer case goes into neutral I put it back and four wheel drive Auto high low it don't matter just four wheel drive and it goes fine never shuts never kicks into neutral only when it's in two wheel drive help
Now I know what to watch out for
So this point I just wanna turn my 1999 GMC Yukon 4x4 into a rear wheel drive. How would I go by doing that
When I turned into parking lot felt like it went into 4wheel drive by itself.the light came on on 4 wheel drive.when I tryed to put in all wheel drive or 2 wheel it just jumped back to 4 wheel drive
Wii a sensor stop my 4 wheel driveand two wheel drive aswell
I have a 2000 model. All the lights are on for the 4x4. 2hi,4hi, 4lo. Replaced the switch it went away then came right back a day later. Will not let me select. Checked the fuse,replaced the switch. Will die when you start to drive it. ??? Any help will be greatly appreciated. Could the replacement be bad as well? Thanks!!
Hello and thxs for your info. I have a question. My four wheel Chevy after a few weeks gets stuck into four wheel high. The shifter is on the floor. It's a 2009 2500 HD with 6.0 engine. I took it to one shop and the guy said the seal was rusted and needed replacing. Depending on what he sees inside will determine on weather I need a new transfer case. My thing is this. I only use four wheel high in the winter months. That's from December to March. Afterwards my shifter won't shift out of four wheel high. Can that be the shifter or the transfer case itself. The shop wants to charge me $1600 to fix whatever it is. I'm thinking that's way to high. Should I get a second opinion.
I got a 98 basketball 5.7 engine back running again it won't come out a little gear got reversed and low gear clean transmission fluid ain't nothing burnt what's my problem
So I'm trying to replace my VSS on my 99 silverado 1500 4x4, and I notices I have 2 sensors on the tail end of the transfer case, one on the driver side and one on the passenger side, set about 90 degrees apart from each other, and I have no idea which one is which. Any help would be appreciated.
I have a 07 Escalade EXT AWD and when i put it in reverse or drive the transfer case makes a loud grind or rattle sound. I know its the transfer case cuz i went under there and put my hand on the transfer case while it was in gear and i can feel something wrong going on inside. My question is would my truck still drive from the rear wheels if the transfer case went out and if the rear wheels dont operate can that be a transmission issues?
My 02 Chev Trailblazer 4.2 vortex 4wd will only move in Reverse,and makes a Clicking noise.Could that be a bad TC,and Can it be removed and still have 2 wd ?
Do you have a video also on the encoder motor sensor replacement
I have a 2015 GMC Sierra 1500 and my 4WD is stuck in High and will not go to Auto or 2. How do I fix this situation?
What about a clicking when I’m in 4 high and it won’t go into 4 low, the light just blinks. The clicking sounds like gears now fully connecting. 2012 Chevy Colorado,
There’s only two ways to the solution you can one bust some knuckles and scream your way through three days of headaches Or pay someone top dollars get it right first time
I have an issue with my 1997 k2500 where it will engage into 2 high and 4 high with no issue but when I put it in 4 low it tries to engage but it will make a clank noise while trying to engage and then go into 4 high
Truck was running perfect. Drained and replaced the transfer case fluid, now my truck studders like crazy 😔
Awesome video, although I didn’t see anything about a output shaft bearing… where can I get those little individual parts and is it possible to just replace that without wrecking anything else in the tcase? I have a new one from Gm waiting at the stealership for 2750 cad$ but really don’t want to spend all that.
I just got a 2003 Yukon and the front drive shaft boot is completely rotted away. I can get a new boot back on but do I need ot worry about damage to the shaft or transfer case, since theres no way to know how long its been off?
What in the world does “NQH” mean?
Hi I have a issue with my 2009 Chevy 4x4 Silverado. It's stuck in 4 high. How can I get it into two high
I have a rusted out 2004 chevy trailblazer ext 4wd that has a transfer case but it will not shift so not sure if it is the transmission or the transfer case or a solenoid or whatever.
DO NOT LET YOUR LLY duramax 4 wheel hop in 4 low. It will test the limits of your T case 😂
I have not got a hold of a Chevy dealer can you tell me what kind of oil goes in the transfer case.
Auto parts stores told me 75/195 or they have told me a GM part number
I have an awd trailblazer ss and my trans is slipping and making a ticking whining type of noise. But I don’t have a check engine light on. And sometimes it’s doesn’t slip. Any ideas on what it could be?
Lol replace the case half for the pump rub issue.... put gasket maker on it. Its worked for me for 7 years
I have a 01 Tahoe 4 wd mine won’t go in to low four after you drive it but when the truck cools off after one hr then the transfer case will go in to low four I replaced the switch in the dash the computer behind the dash the actuator and the coda motor and put a new plug on the wires and it is full and is full of fluid
when i hit the 4wheel drive button. i can hear the encoder motor running but it goes back to neutral. could it still be the encoder motor? i have no codes showing.
Great video. Folks this video covers EVERYTHING readily serviceable on the transfer case, short of internal component failure such as bearings or the clutch pack. Good stuff. The current problem I have on my 07 Tahoe is the "service 4wd" light and the Tcase acting weird occasionally. I am 99% sure it is the encoder ring in the Tcase shifting motor. A $60 part and about 1.5 hour of simple DIY job in the home garage.
Totally looks Me Inbetween from that Aussi show.
I have a silverado with a manual transfer case and the engine is bad. There's a silverado with a bad transmission and good engine but it has an electronic transfer case. Can I swap that engine into mine?
O7 YUKON 5.3 4X4. Has a code service 4 wheel drive. Indicator light works some times. Every once in a while on start up it is in 4 wheel drive. Takes a while to get to 45mph with a hard shift into 2nd gear. After that, it will go to 70mph no problem. But if I slow down or come to a full stop, I have to start the whole process all over again. Is there away to disconnect the 4 wheel drive all together? Maybe pull a fuse? It seems to be getting worse as it gets colder.
I got that pinhole leak in my case.... I'm gonna jb weld and steel putty that sucker!
I have a 2006 chevy hd 2500 4x4 the leak is between the transfer case and transmission is that gasket easy to replace
What is the part attached to the transfer case on a 2016 4x4 Colorado? It likes like a metal container and sensor attached to the transfer case.
Where is the module located at?
i love your videos so much, this help me all the time,BUT why you don't ship parts to Norway in Europe?
Think just watching this, just saved me some $$$, Thank-you A-1, you guys rock... , ship to Yukon, Canada??
+kenn roberts Thanks for checking us out! We do ship to Canada, check out our site for more information! 1aau.to/m/Shop-1AAuto-c