| 1 | 0 | 3 | 4 | 3 | 4 |
2003 Chevrolet TrailBlazer repairs by problem area
Engine (28%)
Transmission and Drivetrain (17%)
Brakes and Traction Control (2%)
Suspension and Steering (25%)
Electrical and Air Conditioning (26%)
Paint, Rust, Leaks, Rattles, and Trim (1%)
Other (0%)
Chart based on 92 repairs.
2003 Chevrolet TrailBlazer engine repair cost distribution
$2500+ (0%)
$1000 - $2499 (14%)
$500 - $999 (19%)
$100 - $499 (48%)
< $100 (19%)
Chart based on 21 repair trips. The repair cost chart excludes repairs made under warranty, do-it-yourself repairs, and repair trips that include maintenance.
2003 Chevrolet TrailBlazer
Engine not specified
| 134000 mi US $280 |
Fuel tank leaking gas from pump module. Found last person who worked on it did not move the pump module into the safety detent to keep it from backing out of tank. Replaced the seal and reassembled the tank. Engine will not idle. Searches for idle rpm. Had to reflash engine control module and clean throttle body. |
| 79000 mi US $1000 |
Replaced thermostat. Replaced radiator hoses. Replaced gas cap three times. Installed proper oil filter. Properly installed oil pan plug and gasket. Changed the oil and filled it correctly. Replaced the radiator. Replaced ignition system electronics. |
2003 Chevrolet TrailBlazer 4dr SUV, ext.
275-horsepower 4.2L I6 4-speed automatic 4WD w/low range
| 143700 mi US $17 |
Electronic ignition switch went bad...replaced |
| 164000 mi US $42 |
Replaced faulty ignition coil. |
| 63840 mi C $1500 |
Replaced coolant line under vehicle. Replaced water pump leaking. |
| 141000 mi US $100 |
Failed coil pack. Caused cylinder misfire |
| 115000 mi US $700 |
Roaring sound from front, louder with higher engine speed. Dealer tech diagnosed bad radiator fan clutch. Replacement part fixed the problem. Check engine light - dealer replaced fuel cap. |
| 171000 mi US $305 |
Loose part in muffler causing rattling noise, especially at idle. The shop welded up a fix because it was much cheaper than OEM replacement part. |
| 200000 mi US $500 |
Rough idle and low power. Diagnosed one spark plug not firing. Replaced ignition coil. |
2003 Chevrolet TrailBlazer 4dr SUV
275-horsepower 4.2L I6 4-speed automatic RWD
| 168000 mi US $25 |
coil pak |
| 132000 mi US $120 |
Thermostat stuck open. Changed it myself. |
2003 Chevrolet TrailBlazer 4dr SUV
275-horsepower 4.2L I6 4-speed automatic 4WD w/low range
| 214000 mi US $100 |
Leaking gas hose was replaced |
| 214000 mi | Car required additive and adjusting spark plugs. A hose was loose |
| 214700 mi US $200 |
Sensor replaced |
| 126200 mi | replace fuel pump and filter due to gas smell caused by metal fittings on pump leaking |
| 150000 mi US $450 |
warning light indicated engine not reaching operating temperture. replaced thermostat and housing along with water pump |
| 86000 mi US $200 |
Fan clutch was replaced due to it not spinning anymore. Had been having trouble for a year with it staying on and it finally gave out and the truck would overheat. |
| 99820 mi C $900 |
Poor gas mileage |
| 112920 mi C $1083 |
New Exhaust Fan Clutch Replaced |
| 70000 mi US $150 |
Replaced defective thermostat. |
See TrueDelta's information for all SUVs
See TrueDelta's information for all Chevrolet models.
