How does the idle relearn procedure work on a Chevy?
Function An idle relearn procedure is a way to reprogram the vehicle’s computer memory to idle at a specified RPM, or revolutions per minute. Without the programmed idle, the vehicle can run arbitrarily, resulting in unnecessary engine wear. Chevy uses a simple idle relearn process.
What to do if your GMC Envoy won’t turn on?
Park and turn off the vehicle’s ignition. Open and secure the hood. Disconnect the negative battery cable with an adjustable wrench. Turn on the vehicle’s headlight switch inside the vehicle’s passenger compartment. The lights will not come on with the battery disconnected, but any remaining power will drain.
What does a computer do in a GMC Envoy?
The computer, a Power train Control Module or PCM, monitors the engine’s sensors and makes adjustments, as necessary, to enhance engine performance. If the PCM is not operating correctly, the engine may run rough and gas mileage may be lower than normal.
What happens if power fails during idle relearn procedure?
If power fails during a relearn procedure, the technician must reprogram the computer chip. Writing professionally since 2010, Amy Rodriguez cultivates successful cacti, succulents, bulbs, carnivorous plants and orchids at home.
How to fix a GMC Envoy stall idle problem?
Hope this helps. Also you will need to reset the computer and check engine light, just disconnect the pos post to the battery for ten minutes the reconnect post and turn your ignition key on and off three times to reset the computer and clear codes.
Is there an issue with the envoy’s rough idle?
No Codes Having an issue with a rough idle condition, goes away at about 700 rpm. Accelerates fine and top end is fine. Just a pronounced misfire at about 500 rpm. Cleaned TB, run BG44k through tank. Cleaned Camshaft actuator solenoid. Was clean even after 200k, first time I’ve pulled it. Pulled plugs, look fine.
How to reset a computer in a 2002 GMC Envoy?
How to Reset a Computer in a 2002 GMC Envoy. 1 Step 1. Park and turn off the vehicle’s ignition. Open and secure the hood. Disconnect the negative battery cable with an adjustable wrench. 2 Step 2. 3 Step 3.
What kind of computer does GMC Envoy have?
The 2002 GMC Envoy has an electronically controlled engine that requires a computer to function properly. The computer, a Power train Control Module or PCM, monitors the engine’s sensors and makes adjustments, as necessary, to enhance engine performance.