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Chevy Tahoe Transmission Problems



  • Well, guess from the other messages mine is not a unique problem. The trans in our 2004 Tahoe appears to have suddenly died while we were 300 miles from home. It didn't give us any warning that this was going to happen. It started slipping on the trip down from 2->3 and then it seemed to slip in 4th. It looked like we would be able to make it home driving in 3rd and it just began slipping to the point we couldn't keep up any speed. This vehicle only has 88,000 miles and it has never towed anything so the trans has not been subjected to a lot of stress. No wrench light. No warning messages in the message area. Currently sitting at a GM service dealer until they reopen on Tuesday. 6-9 months ago we had to have a pressure regulator solenoid replaced in the trans because of extended delayed shifting going from 2->3. Not sure if it's related to this but these transmissions should last longer than this. Not sure what we'll do now. Overall, this vehicle has been a bit of a disappointment. Many small items going wrong, including the infamous gauge cluster problem. Infamous seat heater problems, Side mirror motor burned out. Seat memory not working. We got the cluster issue taken care of by GM but I doubt we are going to get any help with this tran issue.
  • carriekcarriek Posts: 2
    I have a 2001 tahoe...transmission went out at 16000 miles,again at 32000mile and again at 108000 mile. I pull a small run about boat 2x a year. I was told that after tranny went out twice while under warranty that if it ever broke that they would cover it the lifetime that I owned the truck...Well I was stupid and did not get it in writing and the Chevy dealer closed...guess Im screwed. So glad I just purchased a brand new Nissan Murano...gonna fix the chevy and probably put it up for sale....
  • Hey Everyone,

    A few months bought a 2003 Chevy Tahoe with 130,000 miles on it, and though it was meticulously maintained and am a little concerned. Recently I have noticed that in the morning when the vehicle isnt warmed up I am getting a hard shift when i start to drive more than 10 miles an hour. It only lasts about 10 minutes, and is only when i am initially accelerating, but I am a college student, and cant afford a major repair, so if its something simple or if anyone has had a similar issue please let me know. Thanks guys.
  • joconleyjoconley Posts: 5
    That was the original problem that sparked the inception of this forum. From the research I've done as well as personal experience, this appears to be the Speed Sensor. It's a $15 part that sits on top of the transfer case.

    My truck did the same thing in the mornings and had to warm up for 5-8 minutes to avoid the hard shifts. Happened only in the winter time though.

    Let me know if that works for you. Apparently others have reported success
  • ratt069ratt069 Posts: 1
    Bought a new 2001 Tahoe in 2001. Loved it. I Put alot of miles on the Tahoe. 336000 miles to date. But 4 transmissions later Ive had my fill. Was told recently that at every 30000 miles the tranny oil should have been changed. I'm in the process of getting the 2001 tranny fixed again and trying to get rid of it. Is there any word of tranny issues on the 2011 Tahoe?
  • I have a 2000 Chevy Tahoe. Had for about 5yrs, runs great except for when you start it and press on gas pedal it wont go any faster then 5miles an hour no matter how hard you step on gas. I can floor it and all it will do is lug and knock. It eventually does smooth out. I thought maybe fuel pump? I have several friends that have tahoes but non with this problem. Embarrassing because if I pull out ahead of somebody I have to pull over because I wont be able to speed up.. Also check engine light is always on. Emissions Im told??
  • 129K miles, one owner. Wife driving in 2WD. Went out of gear. Engine rev'd up. Would not go into Drive or Reverse. Got engine code for O2 Sensor. Changed it out. Light went out. All good. Yesterday, did same thing but no engine light came on. Pulled over. Put in Park. In PARK position, it started to roll forward, had to apply brakes to keep it from rolling forward on flat ground. Turned off engine. Re-started it and tried to put in DRIVE. Heard something spin up then down...and a little clanking under truck. Put it in 4WD and she was fine, no more noise. Drove the rest of the day in 4WD. Late last night, drove around town in 2WD. No immediate issues. Tahoe has not had Trans Fluid changed for life of vehicle. No Engine Light right now, no burning smell, or other noises now.
    Usually drive in 2WD and almost entirely highway mileage around 70mph. Any thoughts, suggestions? Can I drive in 4WD indefinitely? Another O2 sensor to change? There are 4 total.">
  • I have a 2004 GMC Yukon XL that appears to be having the same problem that you describe. Will shift up to 3rd, but will not downshift. Have to stop, turn off the engine for a few minutes, then pray that it works properly. I don't see any resolutions on here, only complaints. Did you have to replace the transmission?
  • I also have a 2000 tahoe z71 5.7 usually when it sits for a while (24hrs) at least. It starts fine but when I get on the gas sometimes it seems like it dosent want to go, usually it will sound deep and almost wants to cut out, sometimes sounds like it back fires too, but after a little bit sometimes holding down on the gas is picks up and smooths out. RPM's dont jump just starts to go and after its wormed up it seems fine, plus it only dose it from a stop not while im driving 30 and get on it, it seems fine......replaced plug wires, plugs, distributer cap and roter. looking into fule pump and fuel filter myself, hope its not the figure it out yet?
  • UPDATE: I put Lucas (brand) Transmission Fluid in last night. The TF was low. It is running fine in 2WD & 4WD. I'll keep an eye on it but I plan to change Tranny fluid/filter/gasket at payday.
  • priorprior Posts: 2
    I got the Service 4WD light on my '05 Tahoe Z71. No lights on the selector, couldn't change modes. Truck was driveable, so I believe it was in 2HI. Had the code read, C0327 which indicates the encoder sensor. I found instructions on this site for how to replace it. Everything came apart real easy, got the new sensor installed in the motor. Went to put the motor back on and the shaft had turned, the notch on the shaft no longer matches up with the gear on the motor. The notch on the gear is at around 11 o'clock position, the notch on the shaft is at 6'oclock. I read multiple comments (all apparently quoting the same bulletin) which says to use a crescent wrench to turn the shaft to the necessary position. How? I can turn it to about 9 o'clock, but no further. Plus, it immediately springs back to 6 o'clock. Someone suggested putting the truck in neutral (trans), jacking the rear tires off the ground, and turning the rear driveshaft while I try to turn the shaft. Did that, same results. Right now the truck is in the middle of my driveway, with the front end up on ramps and the rear on jack stands, with no front driveshaft. This is my daily driver, and I'm stranded without it. Does someone have any other suggestions?
  • Hello everyone, I have been reading over the threads listed looking for a problem similar to mine...but I haven't found one exactly like mine, so...I have a 2002 lt auto ride 5.3L 4x4 Tahoe. I purchased it used from a soccer mom so it was driven but well cared for. One day while pulling into traffic SNAP..the sun shell broke, I had it towed (2nd problem) to a place where my husband and his father having worked on rebuilding engines and transmissions before purchased the appropriate kits and rebuilt the transmission with a new beefier sun shell. 2nd problem steps in...The tow company towed it backwards on its front tires without putting it neutral! This basically fried the transfer case. They did however take it to a transmission shop and replace the damaged I have been driving it minimally and 3 months later comes in the current problem, In the morning when you 1st start it it's like the fluid has left the transmission overnight the engine rev's higher like it has no resistance and if you were to proceed driving it makes this whining noise (like your low power steering pump would) only when it tries to shift into into 2nd and again into 3rd but this noise stops after 10 or 15 minutes of driving(like the fluid has now reached all area it needs to) I tried letting it sit in the mornings this initially helped the noise volume and duration. But 4 weeks later it is now louder and more violent sounding it last a lot longer and it does not help to let it sit a run.

    The only thing my husband says he did not replace was the shift plate, but now he believes one or two of the bebe's where little worn...could this be the culprit? I have already even with their help spent a fortune to fix this Tahoe with 3 kids and trying to get a degree I have already exhausted our $$ I get 10 different opinions from transmission shops all with huge $$tags. Please help :(
  • dmntddmntd Posts: 20
    Well here it is just 1yr into owning my 2005 tahoe and now I have a 3rd problem that just pooped up. So on top of my liftgate being stuck in the lock possition leaving it totally useless, the remote key fob will not unlock my doors but will lock and set the alarm, but now ar 78,500 my transmission is starting to act up. I have never dogged this car infact I had all the dealer requiered maintainace done on it as soon as I bought it. The other day I was sitting at a red light and as the light turned green i pressed the gas pedal and teh car seemed to hesitate a little almost like it wanted to stall. Today on the way home from work on the freeway the transmission seems to shift up only to 4th gear and then staysthere unless I backed off the gas. At 60mph the RPM's was at almost 3,000 which I know is not good. The car shifts down just fine and there are not other indicator lights or warning what so ever. its a 2005 Tahoe with the 5.3lt vortec engine and 4wd. Does this mean I need to replace or rebuild the transmission or could it be something else? If I knew that Tahoes had some many damn issues and Chevy dont want to fix or recall them I would have never traded my Durango for it. If I dont get a good resolution with this issue I will never purchase a Chevy product again and will share my pains with all my friends and family to follow my lead :-(
  • dmntddmntd Posts: 20
    Well took my Tahoe to a transmission shop and thank god it was not blown or in need of any major repair. The Chevy dealer over filled my transmission fluid by 2 quarts when they topped off my fluids during an oil change. It did give him a P0642B code which he cleared out and now my Tahoe is running like new. But was told I will have to at least have it serviced within 5 to 6k miles just to keep it running smooth.
  • Did you find the issue, I am having the same problem.
  • I replaced one of the the O2 sensors. All seemed right with the world then it happened to me again. However, 2 things were common to both incidences. I was running on fumes...about the drag up empty...and I was driving in 2WD. As of right now, no problem. I intend to change all Trans fluid, filter, and gasket very soon. Current mileage = 130K
  • gmcustsvcgmcustsvc Posts: 4,003
    Have you considered getting this diagnosed at your servicing dealership? Is there anyway we can help? Let us know – email Christina here with more information (name, VIN, contact info, dealership).

    GM Customer Service
  • dmntddmntd Posts: 20
    Ok so after a week my tahoe started doing the same thing again with a slight hesitation when starting off and tehn not shifting into overdrive while on the freeway. I have to take it back to the transmission shop that check it out before to have them do an overnight diagnostic so see if their computer can detect the problem since there is no check engine light nor a service light coming on.
  • gmcustsvcgmcustsvc Posts: 4,003
    Looking forward to hear how your visit to the shop goes. If Customer Assistance can help, please don’t hesitate to email Christina though the email address provided on this forum.

    GM Customer Service
  • I had the same problem recently but it turned out to be simple fix. I had installed a K/N Intake system on my Tahoe years ago and never had a problem but when I had the same problem as you I took my truck in to my mechanic and he told me the stock mass air flow sensor wasn't reading the correct amount of air due to my K/N. I purchased a performance mass air flow sensor from Granatelli like he recommended and problem solved. It runs and shifts better than ever. I never got a light either. To test your mass air flow sensor just unplug the wires to it and drive the truck. If it runs and shifts good than you know thats what it is. You will get an engine light on when doing this but you can reconnect the wires and it should go away or just have it reset at Autozone. Let me know how it turns out.
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