| 1 | 0 | 3 | 4 | 3 | 4 |
2003 Chevrolet Avalanche repairs by problem area
Engine (29%)
Transmission and Drivetrain (16%)
Brakes and Traction Control (6%)
Suspension and Steering (12%)
Electrical and Air Conditioning (33%)
Paint, Rust, Leaks, Rattles, and Trim (4%)
Other (0%)
Chart based on 49 repairs.
2003 Chevrolet Avalanche engine repair cost distribution
$2500+ (7%)
$1000 - $2499 (0%)
$500 - $999 (21%)
$100 - $499 (43%)
< $100 (29%)
Chart based on 14 repair trips. The repair cost chart excludes repairs made under warranty, do-it-yourself repairs, and repair trips that include maintenance.
2003 Chevrolet Avalanche 4dr SUT
285-horsepower 5.3L V8 4-speed automatic RWD
| 300000 mi US $800 |
Low fuel pressure at cold start due to failing fuel pressure regulator. |
| 308000 mi | The cam bearings in the heads were worn out. |
2003 Chevrolet Avalanche 4dr SUT
285-horsepower 5.3L V8 4-speed automatic 4WD w/low range
| 23000 mi | Fuel pump, replaced under warranty |
| 84000 mi US $100 |
replaced injectors, fuel pump and plug wires, under extended warranty. |
| 132500 mi C $950 |
Front crank case oil seal replaced |
| 140760 mi C $2500 |
Truck would not idle when initially started in cold weather. The intake manifold gasket was leaking causing the engine to run lean. As a result the spark plugs had to be replaced as well. |
| 86800 mi US $150 |
replace ignition switch for intermittent low voltage to aux systems (4WD) Replaced crank position sensor for loss of ignition with no warning (MIL) lights or codes also relaced Right front wheel rotation sensor |
| 99000 mi US $25 |
Loss of primary electrical power bus to ignition switch. Extreme cold caused intermittent problem to reoccur having plagued me in 2011. A completely separate power bus was installed to supplant original source. |
| 106000 mi US $110 |
Fuel pump failed, ordered replacement part on line. removed back seat and carpet, cut hole in floor above fuel pump and replaced same upon receipt of parts. |
| 80000 mi | Loose ground on engine block. Four cents for new terminal ring. Would go into Limp mode with code coming up as the throttle position sensor bad when going over bumps while turning left. Also had issues with a no start condition, headlights would stay on. |
| 100000 mi US $375 |
Replaced some sensors, and added a new g-force chip to improve gas milage and proformance. |
| 121000 mi US $700 |
Replace radiator, water pump, thermostat, drive belts, battery. |
| 59000 mi US $257 |
The EVAP vent solenoid was replaced - there is a TSB 04-06-04-055A that applies I extensively use the vehicle offroading for pleasure |
See TrueDelta's information for all SUTs
See TrueDelta's information for all Chevrolet models.
