| 1 | 0 | 3 | 4 | 3 | 4 |
2008 Hummer H3 repairs by problem area
Engine (39%)
Transmission and Drivetrain (14%)
Brakes and Traction Control (8%)
Suspension and Steering (16%)
Electrical and Air Conditioning (16%)
Paint, Rust, Leaks, Rattles, and Trim (4%)
Other (0%)
Chart based on 49 repairs.
2008 Hummer H3 engine repair cost distribution
$2500+ (11%)
$1000 - $2499 (17%)
$500 - $999 (6%)
$100 - $499 (28%)
< $100 (39%)
Chart based on 18 repair trips. The repair cost chart excludes repairs made under warranty, do-it-yourself repairs, and repair trips that include maintenance.
2008 Hummer H3
Engine not specified
| 62620 mi C $460 |
Check engine light stays on. |
2008 Hummer H3 4dr SUV
295-horsepower 5.3L V8 4-speed automatic AWD w/low range
| 63000 mi US $1750 |
Top of radiator leaking because of no padding on upper retaining bracket. Original OEM design and install. DTC P0121. tech found the throttle body bad. |
| 142100 mi US $7500 |
#5 bearing spun. Full engine replacement. |
| 47000 mi | Total engine failure, 5.3L V8 |
| 93700 mi | Oil Pan Gasket needed replacing, oil leak Replaced cat back exhaust |
| 90800 mi US $15 |
small coolant leak |
| 120000 mi US $25 |
Simple preventative maintenance- Oil Change, air filter cleaning (k&N) and MAF and throttle body cleaning (rough idle) |
| 149000 mi US $250 |
Heat shield on catalytic converter came loose (rusted weld), put exhaust strap on it. |
| 150000 mi US $1250 |
Replaced cracked radiator |
| 176000 mi US $1600 |
The vehicle went in for broken exhaust manifold bolts and an exhaust leak. I decided to replace both exhaust manifolds due to the age of the car but technically they were not required. |
| 176000 mi US $8500 |
I had a lifter freeze and destroy the cam lobe. The noise was hidden by the exhaust leak and became very apparent when exhaust was fixed. I could have replaced the lifter and cam but chose to replace the motor due to high mileage and metal particles in the oil. The cost of the motor replacement would have been $7k but I chose to replace all hoses, alternator, water pump, thermostat, fan clutch , plugs, coils, etc. If I had just done the lifter and cam the cost woudl have stayed around $1k |
2008 Hummer H3 4dr SUV
242-horsepower 3.7L I5 5-speed manual AWD w/low range
| 105000 mi US $1 |
Radiator needed to be replaced |
2008 Hummer H3 4dr SUV
242-horsepower 3.7L I5 4-speed automatic AWD w/low range
| 103000 mi US $250 |
Engine started running warm on warmer days. Thermostat needed to be replaced. |
| 54000 mi US $748 |
Radiator cracked at top causing leak. Vehicle also has a rough idle. Cause of Idle unknown |
| 45000 mi US $170 |
Engine service light replace Gas Cap.1st. according to repair manual. Then had to replace Gas tank Pressure valve at gas tank. |
| 54000 mi US $30 |
Muffler Heat shield clamp broke & had to be replaced. |
| 77000 mi | Occasional engine loss of power under high steering load when just starting up after about a week of sitting. |
See TrueDelta's information for all Hummer models.
