Table 1 shows seven common other fuel system related problems of the 2003 GMC Envoy. The number one most common problem is related to the other fuel system tank assembly (23 problems). The second most common problem is related to the other fuel system (eleven problems).
Check engine light stays on. Had a diagnostic done and they said there�s a gas leak coming from the gas tank fuel inlet valve. Common problem for the GMC Envoy and correction involves replacing the whole fuel tank costing an average $1,400. Dangerous to drive if left untreated. Read details...
Fuel indicator bounces from empty to full in the matter of seconds while going down the road. Also, issues with mileage range reported as the fuel indicator is fluctuating. Read details...
While driving the vehicle a strong odor of gas entering the cabin. Fill vehicle up and large amount of gas pours on the ground from under the vehicle. Closer inspection reveals the part that attaches to the gas tank is broken off causing vapors to escape and not providing a seal to contain the Read details...