

Engine (39%)
Transmission and Drivetrain (10%)
Brakes and Traction Control (1%)
Suspension and Steering (21%)
Electrical and Air Conditioning (25%)
Paint, Rust, Leaks, Rattles, and Trim (0%)
Other (3%)
$2500+ (0%)
$1000 - $2499 (8%)
$500 - $999 (13%)
$100 - $499 (38%)
< $100 (42%)
Engine not specified
100000 mi US $400 |
Check engine light came on. Trailblazer started rumbling (shaking), mostly while idling. Mechanic said one of the cylinders wasn't firing. Replaced a sensor, plugs and a coil in the cylinder that wasn't firing. |
65300 mi US $80 |
Cooling pump failed |
67000 mi | one month later the new water pump failed |
270-horsepower 4.2L I6 4-speed automatic RWD
229500 mi US $350 |
This did not correct the stalling issue. Ended up having to remove and clean the throttle body. |
230100 mi US $20 |
Antifreeze leak at rear heating and cooling system. I purchased the proper fittings and water hose clamps and cut off and isolated the rear heater core and reattached the hoses into a loop. Eliminated the leaking antifreeze and odor. |
139300 mi US $70 |
Replaced cpas sensor (vvt exhaust cam solenoid) because it was leaking oil. Probably only needed new o ring, but it was original to the car. Replaced with ac delco part and no more drips. |
147000 mi US $300 |
Replaced fan clutch and water pump after getting a code for fan speed. Replaced water pump as precaution but pump appeared to be in good shape, even the bearings. |
270-horsepower 4.2L I6 4-speed automatic RWD
88000 mi US $284 |
Engine check light. Two codes regarding catalyst flow. Catalytic converter replaced. |
122000 mi | Rear oxygen sensor failed again. |
127000 mi US $157 |
Pre and post cat oxygen sensors burnt out again. Only reset warning light. |
130200 mi US $85 |
Paid labor for shop to replace the "failed" yet still under warranty oxygen sensors and catalytic converter. |
147000 mi US $59 |
Motor mounts were replaced to stop the vibration at idle while vehicle was in drive. |
270-horsepower 4.2L I6 4-speed automatic 4WD w/low range
86900 mi US $450 |
fan clutch |
277000 mi US $800 |
Coil pack |
133000 mi US $55 |
Replaced water pump Replaced water pump |
152000 mi US $380 |
Fuel smell when driving vehicle. Fuel pump has a flaw in the design that caused the fuel lines to corrode (rust) through. Removed the fuel tank, replaced the fuel pump, replaced the fuel tank. |
83000 mi US $800 |
Injector cleaning. |
96000 mi US $1400 |
Cooling tubes between trans and radiator broke while driving. Also leaking front joints required replacement. Had coolant flushed and replaced. Other maintenance cost. |
159000 mi US $200 |
Starting noticing coolant leaking directly under engine; observed coolant residue on block and knew water pump seal leak. Went ahead with replacement of water pump since age of current one is unknown. Replaced fan clutch, thermostat, and coolant temp sensor. Refilled coolant. 159K miles. |
166000 mi US $20 |
Vent solenoid on gas tank causing CEL. Problem was exacerbated by running tank low on hot day. Tried filling up tank and overflow occurred. Cooled down and was able to fill. Part purchased but not installed; given to new owner. |
89000 mi US $400 |
Exhaust manifold replaced (cracked) |
136000 mi US $750 |
Missing. Replaced one coil and 6 spark plugs. |
126000 mi US $2000 |
They were getting three engine actuator errors so they replaced it. They had to flush out a sensor on the engine and do a computer update |