Two problems related to engine and engine cooling have been reported for the 2004 Chevrolet Avalanche. The most recently reported issues are listed below.
The contact owns a 2004 Chevrolet Avalanche 1500. While driving approximately 50 mph, the check engine warning indicator illuminated and the reduce engine speed message appeared on the instrument panel. The vehicle lost speed and the contact coasted the vehicle to the shoulder. The engine was idle and would not accelerate. The contact engaged in gear and started driving, but the failure recurred. The vehicle was towed to the house. The vehicle was diagnosed by an independent mechanic. The throttle actuator control module failed and needed replacement. The vehicle was not repaired. The manufacturer was notified of the failure. The approximate failure mileage was 113,000.
When setting at idle, there's vibration, rough idle, and slight engine surge. Vibration can be felt in steering wheel, brake pedal, and in seat. Dealer response: engine not misfiring and fuel mixture is correct. No clues found. Engine is running normal at this time. Concern not verified. No repair attempted.
| Manifold/header/muffler/tail Pipe problems | |
| Engine Cooling System problems | |
| Engine And Engine Cooling problems | |
| Car Stall problems | |
| Coolant Leaking problems | |
| Check Engine Light On problems |