2008 GMC Yukon actuator idle control resetting procedure

2008 GMC YUKON
Avatar
ABDULAZIZ
  • MEMBER
  • 2 POSTS
Engine Performance problem
2008 GMC Yukon V8 Two Wheel Drive Automatic

hi, im martan ,
im a diagnostic auto computer technician here in saudi arabia. im trouble the 2008 yukon with high idle speed 2400 idle speed... coould you help me reseting the idle speed to normal..using tech2 scanner.

thanks and more power...

martan
Apr 24, 2009 at 12:53 AM
Advertisement
Avatar
BRIAN 1
  • CERTIFIED EXPERT
  • 1,030 POSTS
build the vehicle,08 yukon etc.go under engine then engine controls,then scroll down to module set up,then idle relearn.Ignition ON, engine OFF, perform the Idle Learn Reset in Module Setup with a scan tool.
Start the engine and monitor the TB Idle Airflow Compensation parameter. The TB Idle Airflow Compensation value should equal 0 percent and the engine should be idling at a normal idle speed.
Clear the DTCs and return to the diagnostic that referred you here. I would advise better but I dont have a tech 2 in front of me.post back with any other questions.
Apr 24, 2009 at 12:42 PM