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NHTSA — Engine And Engine Cooling Problems


hardly worth mentioning
Crashes / Fires:
0 / 0
Injuries / Deaths:
0 / 0
Average Mileage:
49,000 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.

2009 Hummer H3 engine problems

engine problem

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2009 Hummer H3 Owner Comments

problem #1

Mar 092012


  • 49,000 miles


At approximately 49,000 mile mark, vehicle started to make unusual engine noise ie. Groan, clicking, usually between 10-20mph, would disappear, then returned between 30-40mph and disappear again at higher speeds. Took the vehicle in a total of four times to dealer. First time, they said it was the front brakes/rotors, cost $120. Noise still there. Second time, they said it was the front shocks (covered by warranty but part not in stock have to rtn a third time). Third time, they replaced front shocks(covered by warranty), noise still there. Forth time, stated it was the engine mounts and two heat shield (also covered by warranty). Noise is still there but very faint if you listen closely. Dealer says they cant do anything else and agree noise is not suppose to be there. Will wait another few months until vehicle is due to be rtn at end of lease term. Thank goodness.

- Davie, FL, USA

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