C 1500 Truck 2WD V8-454 7.4L (1990)
Transmission
Gear
Idle Speed
IAC Counts [1]
OPEN/CLOSED Loop [2]
Man.
N
800
5-30
OL
Auto
D
750
5-30
OL
[1] Add 2 counts for engines with less than 500 miles. Add 2 counts for every 1000 ft. above sea level.
[2] Let engine idle until proper fuel control status is reached (OPEN/CLOSED loop).
MINIMUM IDLE AIR RATE
Transmission
Gear
Engine Speed
OPEN/CLOSED Loop
[1]
Man.
N
700 +/- 25
OL
Auto.
D
625 +/- 25
OL
[1] Let engine idle until proper fuel control status (OPEN/CLOSED loop) is reached.