Four problems related to other fuel system pump have been reported for the 2004 GMC Envoy. The most recently reported issues are listed below.
Fuel odor -strong, from region of fuel tank. Loss of fuel while driving, far more than normal useage! investigation shows faulty tank to fill line connection at tank 'spout'. Or fault at fuel pump area- hidden on top of tank. Parked strong gas odor. Driving or on grade, fuel loss !.
The contact owns a 2004 GMC Envoy xl 370. While driving at various speeds, the left turn signal, headlights, and tail lights failed to operate. In addition, the fuel pump made an abnormal noise after the vehicle was started. The failure recurred numerous times. The contact stated that the trunk door failed to close. The vehicle was not diagnosed nor repaired. The manufacturer was not notified of the failures. The approximate failure mileage was 177,687.
Started smelling gas, started dripping fuel. After investigating the fuel lines coming out of the fuel pump were severely corroded at the top of the gas tank. Dripping gas could have caught fire. Learned there was a TSB on this and extended warrenty due to corrosion of fuel lines. The warrenty was for 10 years or 150k. The vehicle is now 11 years old. I have lived in the same house for eight years and never received a recall or TSB notice from GMC. Over 800$ for a new fuel pump and to drop gas tank for repairs. While the vehicle is a 2004 it only has 67k on it.
Tl-the contact owns a 2004 GMC Envoy xuc. The contact stated that while driving there was a fuel odor present. The vehicle was taken to an independent mechanic for a diagnosis and they had stated that the fuel pump was corroded and the odor was a result of a fuel leak. The vehicle was not repaired. The manufacturer was notified of the failure and the approximate failure mileage was 116,000. Sms.