Noticed the smell of gas. Took to dealer where purchased. Fuel pump was fine, but the tube had corroded. Extended warranty purchased will not cover this because the pump did not fail. Failure was due to corrosion. The vehicle is only 5 years old! cost estimate is over $600 to fix. Have to replace pump also. When repaired, I will ask for the old part. This vehicle has been in shop for repairs more than any one I have ever owned. (front wheel bearings went at about the same time, but were covered under the warranty).

- Sidney, NY, USA

The GMC Envoy XLT experiences a total loss of power under the following conditions. When the fuel tank is at or below a quarter tank of gas the vehicle's gas pedal becomes inoperable and the forward velocity is lost to the point that if you are in traffic the vehicle will immediately began to slow down resulting in a completely hazardous and unsafe situation where the driver has no choice but to pull off the road or be rear ended. This has occurred on several occasions only under the conditions described above. Several GMC Envoy XLT owners have expressed the same situation. This has been reported to GMC in 2005 but it appears that the problem is known but they aren't accepting responsibility as a manufacturer. Possible indicators may be the fuel pump assembly, fuel pressure regulator, or some other vital componet in the fuel system. I am sure GM knows.

- Douglasville, GA, USA