Mike's Workshop Manuals: Service manuals for every vehicle

Home >> GMC >> 1990 >> Forward Control 7.4 N, Standard >> Repair and Diagnosis >> Engine Performance >> System >> Engine Controls - Tests W/Codes - TBI >> Diagnostic Tests >> Code 35: Idle Speed Error (2.5L) >> Throttle Body

Throttle Body

Remove IAC and inspect bore for evidence of IAC valve dragging.

scientia non olet · About Mike's Workshop Manuals