GMC W4 Forward Cab: Engine

Affects GMC W4 Forward Cab · 1989–1990 — about 165 vehicles.

The hazard

CRACKS IN THE COOLING FAN CLUTCH ADAPTOR PLATE MAY CAUSE THE COOLING FAN TO LOOSEN AND IN SOME INSTANCES SEPARATE FROM THE FAN PULLEY MOUNTING AREA WHILE THE ENGINE IS RUNNING. THIS COULD RESULT IN INJURY TO PERSONS WORKING ON THE VEHICLE IN THE VICINITY OF THE ENGINE FAN BLADES. CORRECTION: ADAPTOR PLATE (DRAWN TYPE) WILL BE REPLACED WITH A CIRCULAR ADAPTOR PLATE.

What to do

Contact your dealer; the remedy details were not included in the filing.

Critical — crash/injury risk now High — injury risk; see remedy Moderate — fix at next service Low — minor / informational