Transmission or computer issues envoy 2003
My envoy runs until it gets hot then it acts
like it has no power to the tranny and I push
the gas petal and it idols up but doesn't
Transmission, Check trans fluid level.
Have the transmission fluid and filter changed.
Use a bottle of Lucas transmission fluid stop slip and seal too.
have a 2003gmc envoy xlslt was backing up in deep stones in 4 wheel drive just stopped push gas wont go forward or back checked fuijd and fuses all good so whats the promble