C 2500 Truck 2WD V8-305 5.0L (1990)
Idle Speed: Specifications
Minimum Idle Air Rate
Minimum Idle Air Rate
Engine Speed
Note: If the engine has less than 500 miles or is checked
at altitudes above 1500 feet, the idle rpm with a seated
IAC valve should be lower than the values above.
Manual Transmission
Neutral
500 +/- 25 rpm
Note: Let engine idle until proper fuel control status
is open loop.
Auto Transmission
Drive
425 +/- 25 rpm
Note: Let engine idle until proper fuel control status
is closed loop.