gmc Workshop Repair Guides

GMC Workshop Service and Repair Manuals

Air Cleaner Housing > < Controlled Idle Speed / IAC Counts|Page 2216
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Man.

N

800 

5-20

OL

Auto

D

800

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 +/- 50

OL

Auto.

N

700 +/- 50

OL

[1] Let engine idle until proper fuel control status (OPEN/CLOSED loop) is reached.

Air Cleaner Housing > < Controlled Idle Speed / IAC Counts|Page 2216