NHTSA safety recall

Recall 77V173000

Engine And Engine Cooling › Cooling System › Fan — Mack · reported 12 Oct 1977 · 48,000 vehicles potentially affected

What's wrong

THE FLEX BLADE FANS ON THE INVOLVED VEHICLES MAY DEVELOP CRACKS IN THE LAMINATED STIFFENER AS A RESULT OF FATIGUE DURING OPERATION. IF SUCH A CONDITION EXISTS AND THE CRACKS GO UNDETECTED, CONTINUED OPERATION COULD CAUSE PIECES OF THE STIFFENER TO BREAK OFF.

The fix

DEALER WILL REPLACE THE ORIGINAL FAN WITH A STEEL FIXED BLADE FAN, FREE OF CHARGE.

VEHICLE DESCRIPTION: TRUCKS EQUIPPED WITH SIX-CYLINDER ENGINES.SYSTEM: ENGINE COOLING; FAN.CONSEQUENCES OF DEFECT: BROKEN PIECES CAN BE PROPELLED OUTSIDE OF THE FANSHROUD AND WILL PRESENT AN IMMEDIATE DANGER AND POSSIBLE INJURY TO PERSONSSTANDING NEARBY.NOTE: PRIOR TO CORRECTION, VEHICLE SHOULD NOT BE SERVICED WITH THE HOOD RAISEDAND THE ENGINE RUNNING.

NHTSA campaign
77V173000
Filed by
Mack Trucks, Incorporated
Report received
12 Oct 1977
Owners notified
23 Mar 1978
Potentially affected
48,000

Vehicles covered by this recall

Whether a particular car is affected and still unrepaired depends on its VIN — a model year being listed does not mean every car of that year is included. Check any VIN free on CarLogs, or at nhtsa.gov/recalls.

1972 Mack Cf 1973 Mack Cf 1974 Mack Cf 1975 Mack Cf 1976 Mack Cf 1977 Mack Cf 1972 Mack Dm 1973 Mack Dm 1974 Mack Dm 1975 Mack Dm 1976 Mack Dm 1977 Mack Dm 1972 Mack Dmm 1973 Mack Dmm 1974 Mack Dmm 1975 Mack Dmm 1976 Mack Dmm 1977 Mack Dmm 1972 Mack F 1973 Mack F 1974 Mack F 1975 Mack F 1976 Mack F 1977 Mack F 1972 Mack Fl 1973 Mack Fl 1974 Mack Fl 1975 Mack Fl 1976 Mack Fl 1977 Mack Fl 1972 Mack Fs 1973 Mack Fs 1974 Mack Fs 1975 Mack Fs 1976 Mack Fs 1977 Mack Fs 1972 Mack Hmm 1973 Mack Hmm 1974 Mack Hmm 1975 Mack Hmm 1976 Mack Hmm 1977 Mack Hmm 1972 Mack R 1973 Mack R 1974 Mack R 1975 Mack R 1976 Mack R 1977 Mack R 1972 Mack Rd 1973 Mack Rd 1974 Mack Rd 1975 Mack Rd 1976 Mack Rd 1977 Mack Rd 1972 Mack Rl 1973 Mack Rl 1974 Mack Rl 1975 Mack Rl 1976 Mack Rl 1977 Mack Rl 1972 Mack Rm 1973 Mack Rm 1974 Mack Rm 1975 Mack Rm 1976 Mack Rm 1977 Mack Rm 1972 Mack U 1973 Mack U 1974 Mack U 1975 Mack U 1976 Mack U 1977 Mack U 1972 Mack Wl 1973 Mack Wl 1974 Mack Wl 1975 Mack Wl 1976 Mack Wl 1977 Mack Wl 1972 Mack Ws 1973 Mack Ws 1974 Mack Ws 1975 Mack Ws 1976 Mack Ws 1977 Mack Ws

Is this car's recall fixed?

Recall repairs are free at any franchised dealer, for the life of the vehicle. A CarLogs report shows the recall status for a specific VIN as reported by the manufacturer — whether it's open or repaired, and whether the fix is available yet.

Source: NHTSA Office of Defects Investigation recall database. Look up another campaign →