Four problems related to service engine light on have been reported for the 2002 GMC Envoy. The most recently reported issues are listed below.
Submission from constituent re GMC executive letter reply in engine stalling/stopping while being driven on the freeway of California. The consumer stated the vehicle stalled several times. Also, the service engine soon light illuminated, due to a faulty ignition coil. The dealer also replaced the ignition switch, as the possible cause of the engine stalling. The consumer continued to experience stalling issues, as the dealer was unable to determine the cause. When the vehicle stalled, the abs and brake warning light illuminated. The dealer found the rear speed sensor connector broken and not sitting properly in the sensor. They repositioned the connector and secured it to the sensor. The consumer discovered a recall, which described the same symptoms he experienced. Recall # 04v289000.
Service engine check light keeps coming on and dealer can't seem to fix. Gas milage has dropped. Also, doors rattle and air whistles through windows. Dealer says they can't do anything about it. Intermittent grinding in transmission. Dealer can't fix.
The engine failed in the middle of a busy road. The low engine power light came on, followed by service engine soon light and then the vehicle lost all power. Towed to the dealer. Problem was cylinder sleeve flew out and damaged the engine. Required a new engine. Vehicle had 15000 miles on. Gm offered to do whatever it takes to keep me happy and loyal. I request from them to credit all the payments I made on this vehicle to the purchase of 2003 escalade . They counter offered an extended warranty for 60,000 miles. I said no. I am buying a land cruiser this weekend. No more gm cars. The worst. Including the high end Cadillac . Just review the complaints on this site and you will see for your self.
While driving at highway speeds the vehicle stalled out and died. The service engine light and reduce engine speed indicator lights came on before stalling. The manufacturer was contacted. The dealer has not determined the failure. Dealer replaced the entire engine. Dealership stated gm would not allow them to replace the parts that broke in the cylinder.