hardly worth mentioning
Crashes / Fires:
0 / 1
Injuries / Deaths:
0 / 0
Average Mileage:
90,708 miles

About These NHTSA Complaints:

This data is from the NHTSA — the US gov't agency tasked with vehicle safety. Complaints are spread across multiple & redundant categories, & are not organized by problem.

So how do you find out what problems are occurring? For this NHTSA complaint data, the only way is to read through the comments below. Any duplicates or errors? It's not us.

2008 GMC Sierra 1500 engine problems

engine problem

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2008 GMC Sierra 1500 Owner Comments

problem #8

Aug 132016

Sierra 1500

  • 130,000 miles


Broken exhaust manifold bolts. As of today I have a total of (3) bolt heads that are broken. (2) on drivers side and (1) on passenger side. The exhaust fumes are beginning to leak inside of the cab especially when stopped at intersections.

- Palm Bay, FL, USA

problem #7

Jun 072016

Sierra 1500

  • 108,000 miles
Collapsed afm lifter at 108000 miles. I was driving down the highway and all of the sudden my check engine light came on, service traction control and service stabilitrak. My engine was idling rough at low RPM. Took vehicle to the dealership and was told that it had a collapsed lifter on the #6 cylinder. I have always had the oil changed regularly at the dealership. Was told it would be 4800 to replace all the lifters, 5300 if the cam was bad also and 7300 for a new engine.

- Broken Arrow, OK, USA

problem #6

Jun 012015

Sierra 1500

  • miles
Ticking noise began once the vehicle reached ~100,000 miles. Initially, the ticking only occurred once the engine was started. As time went on, the ticking became more frequent, to include upon engine start and while the vehicle was under load/accelerating. At approximately 108,000 miles, the tick became constant while the engine is running. GMC dealer diagnosed the problem as a failed lifter, which, apparently, has been a common problem in GM 5.3L engines. A vehicle should not need a new engine, or even new lifters for that matter, at 100,000 miles. This is a known issue, with many consumers reporting it and GM acknowledging it. Vehicles with these engines should have been recalled years ago.

- San Antonio, TX, USA

problem #5

Jun 242015

Sierra 1500

  • 27,000 miles


Out of nowhere engine began to idle erratically almost causing an accident at an intersection, if I hadn't caught it and slammed on the brakes the truck would have rear ended another vehicle. After that the idle began to drop as if the vehicle was going to stall, then would kick back up to about 900-1000 RPM. Was intermittent at first, now vehicle is not driveable. It is worse with A/C on and it effects engine temp gauge as well.

- Henrietta, NY, USA

problem #4

Mar 152015

Sierra 1500

  • 177,000 miles
Driving and the engine began making a hitting sound as if someone was beating a metal object against metal.

- Clinton, MS, USA

problem #3

Oct 012013

Sierra 1500 4WD 8-cyl

  • 110,000 miles
Vehicle was in (D) drive and I was able to turn the ignition off. Is this normal" I checked with my GMC dealer and they said it had to be put on the computer to be checked, however was not covered by any posted recall. Is this relative to the ignition recall" thank you

- Niceville, FL, USA

problem #2

Apr 122014

Sierra 1500 8-cyl

  • 170,000 miles
On 04.12.2014 after going to the store, parked under the carport. The time was 10pm. While inside heard a pop sound around 10:15 pm. Went outside and the truck was on fire. Put truck in neutral and pushed it from under the carport, trying to save damage to the house. Fire dept came and put the fire out. The fire warped all the vinyl under the carport. Lucky it didn't catch the house on fire. The fire was worse on the passenger side of the vehicle.

- Lynn Haven, FL, USA

problem #1

Jan 022014

Sierra 1500

  • 3,664 miles
The contact owns a 2008 GMC Sierra 1500. The contact was driving approximately 35 mph when the temperature warning indicator light illuminated. The vehicle was in the process of overheating and the contact allowed the vehicle to cool down. The vehicle was later driven to the contact's residence and was not taken to for diagnosis of repairs. The manufacturer was not made aware of the problem. The approximate failure mileage was 3,664.

- Chardon, OH, USA

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