gmc Workshop Repair Guides

GMC Workshop Service and Repair Manuals

Minimum Air Rate - Fuel Injection Only|Page 1790 > < Minimum Air Rate - Fuel Injection Only|Page 1788
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Idle Air Flow

MINIMUM AIR RATE ADJUSTMENT

 1.

Before adjusting the minimum air rate or idle speed to specifications, make sure the idle air control valve pintle is fully extended or bottomed out
in it's seat.

Removing Plug

 2.

Remove air cleaner, then remove idle screw concealment plug.

 3.

Warm engine to normal operating temperature, and connect a tachometer.

Minimum Air Rate - Fuel Injection Only|Page 1790 > < Minimum Air Rate - Fuel Injection Only|Page 1788