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Mack CH Recall 93V137: Engine And Engine Cooling:Cooling System:Fan

NHTSA campaign 93V137, reported August 20, 1993, 11,000 vehicles potentially affected.

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The repair is normally free at an authorized dealer.

Official recall notice

Safety recall 93V137MACK TRUCKS, INCORPORATED
Component
ENGINE AND ENGINE COOLING:COOLING SYSTEM:FAN
Problem
THE ENGINE COOLING FAN BLADES MAY BREAK DUE TO INADEQUATE BLADE STRENGTH AROUND THE RIVETS THAT ATTACH THE BLADES TO THE FAN SPIDER.
Risk
IF COMPLETE FRACTURE OF THE FAN BLADE OCCURS, IT COULDBE PROPELLED OUTSIDE THE FAN SHROUD, INJURING PERSON(S) IN THE VICINITY OFTHE TRUCK.
Remedy
AN IMPROVED FAN WILL BE INSTALLED ON THESE VEHICLES.
Notes
SYSTEM: ENGINE; COOLING FAN.VEHICLE DESCRIPTION: CLASS 8 HEAVY TRUCKS EQUIPPED WITH 6 BLADED FANSMANUFACTURED BY ENGINEERED COOLING SYSTEMS, INC.

Affected vehicles

Mack CH199119921993
Mack FDM199119921993