2008 Chevrolet Tahoe Engine Problems

Mileage when the problem started

• Under 25k
  15%
• 25k–50k
  314%
• 50k–75k
  419%
• 75k–100k
  524%
• 100k–150k
  629%
• 150k+
  210%

Owner reports

Selected complaints filed with NHTSA by 2008 Chevrolet Tahoe owners, lightly cleaned up (personal details are redacted by NHTSA).

Was Delivered. Took for a test drive. Stalled at stop sign. Restarted went down the road stalled and slammed into park. Contacted company was told to take to local GMC/Chevy, (said they did a bunch of research and this part should work) basically guessing had my vehicle for 9 months replaced some sensor. Had my boyfriend Drove to red light, not even half a block, stall (stable track sensor) but lost all electric but v8 still ran took to another ( had towed) to another local shop they had for 4+ months couldn't figure out said it was running 18+ codes and would cost too much to go through. Contacted company the gentleman politely laughed and said ur kidding me right it's been years I tried to explain how long it was taking due to both repairs company had it over a year n half. No sympathy he knew exactly what he sold.

I had bought the 08 Tahoe hybrid. The day it was delivered, it stalled I called the dealership out of Minnesota and was told oh it could be this it could be that went to two local shops and a private shop all had different specifications as to what was wrong with the car due to so many codes being thrown out. You would try to take off from a stop sign or a red light car would completely lose all power, almost had multiple people slam into me because it always happened, caused so much anxiety because my only wheels to get my children around. Once again was told to take it in GM had it for over a year and could not figure the issue out. I was told by the dealer multiple times it was not their issue and they knew the position I was in an said it was inspected but refused to send me the paperwork.

I was driving my truck to a softball game when I drove into the parking lot I noticed a burning smell. I parked in the parking lot and the smell got stronger. I didn't realize the smoke was coming from my hood until I got out of the vehicle. Two citizens that were walking by noticed the smoke and helped me open my hood and about thirty seconds later flames started coming up out of the engine by the upper right driver's side. A guy poured poweraide on the flames and it went out. After I made an insurance claim and called GM I found out it was the heated washer fluid that caused the fire. There was a recall on this specific item and I was informed they had fixed this recall in jan. Of 2009. I purchased the vehicle in April of 2009 not knowing there had ever been a recall on my vehicle. GM has not even sent a representative from their company to look at it or take care of the problem. …

Gas engine run away check engine light illuminated with p0069, p0430 (emissions codes) engine uncontrollably revved to maximum 6000 RPM (max throttle)while in drive gear from autostop resume.. Cruse control not enabled slight uphill grade required engine to be shut off with key same day as first event while in drive gear from autostop resume with cruse control enabled at 25 MPH engine uncontrollably revved to maximum 6000 RPM was able regain control of engine RPM by shutting off cruse control .. (something in common with the first time ) slight uphill grade uncontrolled high engine RPM from autostop resume still happening after replacement of the map sensor ... I see as much as 2,000 to 2500 RPM from autostop resume... This is not normal it should be starting at 1200 to 1500 RPM.. Normal engine starts are at 1100 RPM

I bought my Chevy Tahoe in 2012.I would changed my oil every 3000 miles.every time my oil was changed,the oil tech would inform me that your oil is very low by showing me the dip stick.when I had 167,009 miles,I was experiencing lifter noise and oil consumption.I took my Tahoe to a Chevy dealership were they found ehaust lifters and cam lobe was worn.they had to replace camshaft,lifters,oil pump,bolts,gaskets,etc.very expensive fix.now that,I have my 5.3 vortex motor fixed,it still consuming oil.I have had many oil changes since motor was repaired and still my 5.3 vortex motor is consuming oil showing low on oil dip stick.on 12/5/2020,I had a oil change at a oil change place and the technician showed me the dipstick with the oil showing very low.where is this oil going?

I purchased my Tahoe from the dealer brand new and always took it to get serviced at the same dealer. In 2015 I took it in for a check engine light and they said there was a misfire and they replaced the camshaft and machined the heads stating that the valves were leaking. Repairs cost nearly $3000. This year 2018 in March the engine light came on again. The dealer stated that there was a misfire in a cylinder the same cylinder that was mifiring 3 years prior. They said a roller on the rocker disintergrated and repairs would cost close to $6000 this is not due to anything I did the vehicle does even have 100,000 miles on it. No harsh driving or anything like that. I believe this is a manufacturing issue. Not a safety issue but I think it is a manufacturing defect.

All ip warning lamps illuminated, loss of power, stalling, gage fluctuation, intermittent door lock operation. Vehicle was in motion on highway when this occurred. Error codes include u0073, u0121m u0101, u0242 ( from dealership analysis). Cause unknown. Vehicle has been in dealership more than 7 weeks without cause of problem not isolated. Technician stated crackling sound when grasping wiring in dashboard area. Loss of communication between control module and various components occurs within one (1) to five (5) seconds. Chevrolet issued tech bulletin #08-07-30-021e. Dealership has followed this bulletin without correcting the problem.

I bought my 2008 Chevrolet Tahoe brand new. People laugh at me because I've always dealt with the dealership on everything including all oil changes. Now I'm being told that I have lifter and cam problems. I complained about the engine light being on 5 months prior to be told this. I was informed that the check engine light was on because of the tps sticking. I'm a single mother of 2. I purchased a new vehicle not to have these kind of problems especially since I've always taken my truck to the dealership. I cant afford a new engine, my truck is parked and I have to get rides to work from co-workers. I cant sleep nor work.

Complain to dealer prior to GM warranty expiration and extended warranty expiration but now that warranty expired willing to investigate. Constant p0300 random misfire detected on cylinder 5. Misfires over 20 times within 60 seconds via GM fast test (launch software version v44.30) happen at idle or in motion leveling / suspension / stability system constantly alert during motion. Also have crack on dash that leads to passenger airbag. If remote start is used loud grinding can be herd after idle for approximately 8 minutes or sooner.

Vehicle's autostop feature is extremely dangerous when driver is trying to apply the brakes and slow vehicle. Vehicle jolts violently forward upon breaking and accelerates to 10 MPH. Vehicle's transmission failed at 135K miles during stop at traffic light in hayward ca in dec 2018. Transmission was rebuilt. Vehicle at 145K miles now is completely shutting down during auto stop with low RPM's without any service codes to check. At all times vehicle is in drive.

Engine complaints in other Tahoe years