2002 Chevrolet TrailBlazer Chevrolet TrailBlazer 2002

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2002 Chevrolet TrailBlazer repairs by problem area

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%)

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Chart based on 67 repairs.
See TSBs and recalls for the 2002 Chevrolet TrailBlazer.

2002 Chevrolet TrailBlazer engine repair cost distribution

$2500+ (0%)

$1000 - $2499 (8%)

$500 - $999 (13%)

$100 - $499 (38%)

< $100 (42%)

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Chart based on 24 repair trips. The repair cost chart excludes repairs made under warranty, do-it-yourself repairs, and repair trips that include maintenance.

2002 Chevrolet TrailBlazer

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 

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2002 Chevrolet TrailBlazer 4dr SUV, ext.

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. 

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2002 Chevrolet TrailBlazer 4dr SUV

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. 

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2002 Chevrolet TrailBlazer 4dr SUV

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 

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2002 Chevrolet TrailBlazer Engine Problems

See our lemon odds and nada odds page to see vehicles with no repairs or vehicles with more than three repairs. To see how frequently 2002 Chevrolet TrailBlazer problems occur, check out our car reliability stats.