gmc Workshop Repair Guides

GMC Workshop Service and Repair Manuals

Engine Controls - New PROM (Driveability/False Lights)|Page 2743 > < Engine Controls - New PROM (Driveability/False Lights)|Page 2741
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Driveability Conditions - 5.7L (L05) TBI Engine

1.

Rolling, surging or rough idles.

Notice:

In addition to the PROM change it will be necessary to reset minimum idle speed, per the procedures on pg. 4-44 of the 1988 Driveability
and Emissions Book X8836.

A.

Automatic (Drive) 425 plus or minus 25 RPM.

B.

Manual (Neutral) 500 plus or minus 25 RPM.

Engine Controls - New PROM (Driveability/False Lights)|Page 2743 > < Engine Controls - New PROM (Driveability/False Lights)|Page 2741