C 2500 Truck 2WD V8-350 5.7L VIN M 4-bbl (1986)
Idle Speed: Specifications
Idle Speed
CURB IDLE SPEED
Light Duty
Manual .......................................................................................................................................................................................................... 700 rpm
Automatic ...................................................................................................................................................................... 550 rpm (High Altitude 600)
Heavy Duty
Manual .......................................................................................................................................................................................................... 600 rpm
Automatic ..................................................................................................................................................................................................... 700 rpm
A/C ON IDLE SPEED
Manual ................................................................................................................................................................................................................. 800 rpm
Automatic ............................................................................................................................................................................................................ 650 rpm
FAST IDLE SPEED
Light Duty
Manual ......................................................................................................................................................................................................... 1300 rpm
Automatic
Federal ................................................................................................................................................................................................... 1600 rpm
California ............................................................................................................................................................................................... 1800 rpm
High Altitude ............................................................................................................................................................................................... 1400 rpm
Heavy Duty
Federal ......................................................................................................................................................................................................... 1900 rpm
California ..................................................................................................................................................................................................... 1600 rpm
NOTE: All fast idle speeds are measured with the fast idle cam on the high step.