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Home >> Chevrolet >> 2002 >> Blazer 4D Utility, 4WD, Part Time >> Repair and Diagnosis >> External Pages >> Different car >> Section 204 (Engine Controls - Theory & Operation - 4.3L) >> Fuel Systems >> Idle Speed >> Notes

Idle Speed: Notes

WARNING: This page is about a different car, the 2003 GMC Sierra and 2003 Chevrolet Silverado. However, it is still accessible from the selected car via links, so may be relevant.

PCM controls engine idle speed depending upon engine operating conditions. PCM senses engine operating conditions and determines best idle speed.

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