R 3500 P/U 2WD V8-350 5.7L (1989)
Idle Speed: Specifications
Controlled Idle Speed / IAC Counts
Under 8500 GVW, Controlled Idle Speed / IAC Counts
Under 8500 GVW, Controlled Idle Speed / IAC Counts
Idle Speed
IAC Counts
Note: Let engine idle until proper fuel control status is
Note: Add 2 counts for engines with less than 500 miles.
open loop
Add 2 count for every 1000 ft above sea level.
Manual Transmission
Neutral
600 rpm
5-30
Auto Transmission
Drive
525 rpm
5-30
Over 8500 GVW, Controlled Idle Speed / IAC Counts
Over 8500 GVW, Controlled Idle Speed / IAC Counts
Idle Speed
IAC Counts
Note: Let engine idle until proper fuel control status is
Note: Add 2 counts for engines with less than 500 miles.
open loop.
Add 2 count for every 1000 ft above sea level.
Manual Transmission
Neutral
600 rpm
5-30
Note: For Suburban Models with a single catalytic
converter
Auto Transmission
Drive
550 rpm
5-30