Cooling system: fanRecall 93V-137 · Mack vehicles

MACK TRUCKS, INCORPORATED recall 93V-137 covers 11,000 Mack vehicles for a cooling system: fan problem, reported to NHTSA on August 20, 1993.

Vehicles repairedNo manufacturer report yet

Vehicles affected11,0002 models

ReportedAug 20, 1993Owners notified Oct 1, 1993

Complaints since0Same system, after the recall

Source: NHTSA recall 93V137000 and manufacturer quarterly reports. Started by the manufacturer.

What's wrong

The problem

THE ENGINE COOLING FAN BLADES MAY BREAK DUE TO INADEQUATE BLADE STRENGTH AROUND THE RIVETS THAT ATTACH THE BLADES TO THE FAN SPIDER.

IF COMPLETE FRACTURE OF THE FAN BLADE OCCURS, IT COULDBE PROPELLED OUTSIDE THE FAN SHROUD, INJURING PERSON(S) IN THE VICINITY OFTHE TRUCK.

What to do

AN IMPROVED FAN WILL BE INSTALLED ON THESE VEHICLES.

SYSTEM: ENGINE; COOLING FAN.VEHICLE DESCRIPTION: CLASS 8 HEAVY TRUCKS EQUIPPED WITH 6 BLADED FANSMANUFACTURED BY ENGINEERED COOLING SYSTEMS, INC.

Recall repairs are free. Confirm whether this recall is open on your vehicle by entering its VIN at nhtsa.gov/recalls.

2 models

Mack CH1991, 1992, 1993

Mack FDM1991, 1992, 1993

Built from April 1, 1991 to May 1, 1993. Not every vehicle in these model years is included; check by VIN.