Vehicle Data Hub

2008 Hummer H3 engine problems

Owners reported engine problems in 22 complaints for the 2008 Hummer H3, 14% of the complaints on file. It is the 3rd most reported problem area for this model year.

At a glance

Complaints
22 14% of this year's complaints
Typical mileage
71,000 miles 16 complaints with mileage
Crashes and fires
0 and 0
Injuries and deaths
0 and 0

Source: NHTSA owner complaints

When engine problems show up

Engine complaints by mileage, 2008 Hummer H3 Complaints by odometer reading in 20,000-mile steps. The median is about 71,000 miles. 0k to 20k miles: 1 complaints 20k to 40k miles: 1 complaints 40k to 60k miles: 3 complaints 60k to 80k miles: 6 complaints 80k to 100k miles: 2 complaints 100k to 120k miles: 3 complaints 120k to 140k miles: 0 complaints 140k to 160k miles: 0 complaints 160k to 180k miles: 0 complaints 180k to 200k miles: 0 complaints 200k+ miles: 0 complaints 040k80k120k160k200k miles Typical: 71,000 miles
Based on 16 complaints that include mileage. 31% were reported before 60,000 miles. The amber marker shows the median: half of these complaints happened before that mileage.
View the numbers
MileageComplaints
0k to 20k miles1
20k to 40k miles1
40k to 60k miles3
60k to 80k miles6
80k to 100k miles2
100k to 120k miles3
120k to 140k miles0
140k to 160k miles0
160k to 180k miles0
180k to 200k miles0
200k+ miles0

What the data shows

Of the 16 engine complaints that report mileage, the median is about 71,000 miles, and 31% were reported before 60,000 miles.

None of the engine complaints mention a crash, fire, injury or death.

What owners wrote

I have a 08 hummer h3 and just found out that I have a cracked radiator. The vehicle only has 52,891 miles on it. This seems to be happening alot to the 07 and 08 hummer h3. I think we need a recall on this. All of the forums I have seen have had theirs crack in the same place. All on top of the radiators. This is something you might want to look into. I know personally I am tired of something going wrong on this. First was the rack and pinion with only 50,844 miles and now this. Come on its time for a recall.

Reported at 52,891 miles, September 2012

The contact owns a 2008 Hummer H3. The contact stated that the vehicle intermittently failed to start up without warning. The contact stated that after waiting ten minutes the vehicle started. The contact stated that recently the failure had become more frequent. The contact had taken the vehicle to a dealer however, the mechanic was unable to determine the cause of the failure. The manufacturer was not notified of the failure. The vehicle was not repaired. The failure mileage was approximately 1,000.

Reported at 1,000 miles, October 2008

Other problems reported for the 2008 Hummer H3

Engine problems in other years