K 3500 Truck 4WD V8-454 7.4L VIN N TBI (1995)
Idle Speed: Specifications
Base Idle Speed
Transmission
Gear
Engine Speed [1]
OPEN/CLOSED Loop [2]
Manual
N
625 +/- 25
CL
Automatic
D
625 +/- 25
CL
[1]
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 above
values.
[2]
Let engine idle until proper fuel control status (OPEN/CLOSED loop) is reached.
