1999 Sierra extended cab pickup/5.3 V8. The service engine light always comes on. Changed gas cap, what's next?
The vehicle has a little over 65,000 miles, and along with the "service engine light" coming on, it appears that the transmission might be slipping (along with a 'clunking' sound) during a quick acceleration, and it sounds like the power steering might be going out also. I've read others having these same problems. Are there any recalls for this vehicle? What can I do in reference to the "service engine" light coming on? I've already changed the gas cap, which worked before.
In Maintenance & Repair > Engine > Indicator Lights
1 answer - 211 days ago
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