why does my 2003 Gmc Envoy surge between 40-54 mph. After 55 mph it doesn’y hop as much. it’s not as bad on cruise control. the dealer told me to wait until the service engine light comes on.
why does my 2003 Gmc Envoy surge between 40-54 mph. After 55 mph it doesn’y hop as much. it’s not as bad on cruise control. the dealer told me to wait until the service engine light comes on.