NHTSA — Engine Problems

1.3

hardly worth mentioning
Crashes / Fires:
0 / 0
Injuries / Deaths:
0 / 0
Average Mileage:
130,667 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.

2005 Hummer H2 engine problems

engine problem

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2005 Hummer H2 Owner Comments

problem #3

Sep 172019

H2

  • 160,000 miles

A D V E R T I S E M E N T S

The computer in the H2 Hummer malfunction. Wipers will not turn off. 4 wheel drive will not engage. Engine light comes on. Everything the computer controls is failing.

- Wilton, ME, USA

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problem #2

Jul 012019

H2

  • 99,000 miles
Check engine light keeps coming on and light blinks than stays on until I take it in for service. The shop can't figure out why it is doing this had it shop about 7-8 times for service. Also code states can cause a possible fire

- Hampton, GA, USA

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problem #1

Jul 012018

H2

  • 133,000 miles
Vehicle has 133,000 miles. It has now experienced an exhaust manifold gasket leak due to broken bolts. This is causing noise from the engine area, and is unsafe due to the leak of hot gases being released from the engine at the points of failure (broken bolts). This may be an epa concern as well, and could also lead to failure of catalytic converter. Repair estimate is $1,300. An online search yields hundreds of other results with same failure and complaint on all GM V8 engines for years 1999-2007. This affects the 4.8L, 5.3L, and 6.0L models. This is a design failure and the affected vehicles with these engines should be recalled.

- Canton, GA, USA

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