1991 Ford Ranger TSBs
55 manufacturer communications for the 1991 Ford Ranger sit in NHTSA's public file. A TSB is factory repair guidance, not a recall — the repair is not automatically free. The 1991 Ranger problem report covers complaints, recalls, and investigations.
What the bulletins cover
Most recent service bulletins
The 20 most recent of 55 communications on file. The complete set is searchable on NHTSA's page for this vehicle.
SOME VEHICLES EQUIPPED WITH AN AUTOMATIC TRANSMISSION AND A 4.0L OHV ENGINE MAY EXHIBIT A NOISE / VIBRATION, NO DRIVE, UNUSUAL NOISE DURING CRANKING OR A NO CRANK CONDITION.
SOME VEHICLES EQUIPPED WITH THE 4.0L OHV ENGINE MAY EXHIBIT AN ENGINE NOISE WHICH MAY BE PERCEIVED BY THE CUSTOMER AS A PISTON / ONNECTING ROD BEARING KNOCK.
OWNER NOTIFICATION PROGRAM SUPPLEMENT 7 REVISED INFORMATION - REGARDING REPLACEMENT OF WILDERNESS AT TIRES.
SOME VEHICLES MAY EXHIBIT HEATER CORE LEAKS.
INFORMATION REGARDING TRANSMISSION FLUID USAGE CHARTS.
ON SOME VEHICLES, ENGINE OIL MAY CONTINUE TO LEAK FROM THE ENGINE OIL PAN GASKET AREA AFTER AN ENGINE OIL PAN GASKET REPAIR HAS BEEN PERFORMED.
SUBJECT REGARDING CONTAMINATION FROM PRIOR TRANSMISSION CONCERNS OR EXCESS WEAR MAY BE TRAPPED IN THE TRANSMISSION FLUID COOLING SYSTEM.
INFORMATION REGARDING THE NEW TRANSMISSION COOLER FLUSHER- SERVICE TIP.
SOME VEHICLES EQUIPPED WITH MANUAL TRANSMISSION MAY EXHIBIT NEUTRAL GEAR ROLLOVER NOISE (A LIGHT METALLIC RATTLING SOUND FROM THE TRANSMISSION) WHICH OCCURS AT IDLE WITH TRANSMISSION IN NEUTRAL CLUTCH ENGAGED (CLUTCH PEDAL UP).
SUBJECT ON A WIRE HARNESS TERMINAL REPAIR KIT AVAILABLE FOR REPAIRING ELECTRICAL WIRING HARNESSES.
VEHICLES EQUIPPED WITH MANUAL TRANSMISSION MAY EXHIBIT NEUTRAL GEAR ROLLOVER NOISE WHICH OCCURS AT IDLE WITH TRANSMISSION IN NEUTRAL AND CLUTCH ENGAGED.
INFORMATION ON IDENTIFYING NON-APPROVED / ALTERNATE REFRIGERANTS WHICH COULD CAUSE SAFETY, AND PERFORMANCE CONCERNS IF INSTALLED IN FORD A/C SYSTEMS.
SERVICE TIP INFORMATION ON REVISED OIL PAN GASKET REPLACEMENT PROCEDURE.
SOME VEHICLES MAY EXHIBIT AN ENGINE NOISE WHICH MAY BE PERCEIVED BY THE CUSTOMER AS A PISTON / CONNECTING ROD BEARING KNOCK.
SOME VEHICLES MAY EXHIBIT AN ENGINE NOISE WHICH MAY BE PERCEIVED BY THE CUSTOMER AS A PISTON / CONNECTING ROD BEARING KNOCK.
INFORMATION ON THE NEW FLUSH AND FILL TOOL AVAILABLE THROUGH ROTUNDA.
SOME VEHICLES MAY EXHIBIT AN AUDIBLE PINGING OR CREAKING NOISE THAT MAY BE HEARD FROM THE DRIVELINE WHEN ENGINE TORQUE IS INITIALLY APPLIED TO THE DRIVELINE.
EXPERIENCING A WHINE / BUZZ TYPE NOISE IN THE SPEAKERS OF THE ENTERTAINMENT RADIO OR TWO-WAY RADIO ON VEHICLES WITH AN IN-TANK ELECTRIC FUEL PUMP.
SOME VEHICLES MAY EXPERIENCE AXLE WIND UP AND / OR CLUNKING, POPPING, RATCHETING TYPE NOISES WHEN MAKING CORNERING MANEUVERS ON VEHICLES EQUIPPED WITH A FOUR WHEEL DRIVE HI OR LOW RANGE MODE.
FORD MOTOR COMPANY NOW RECOMMENDS SAE 5W-30 VISCOSITY GRADE FOR SERVICING ANY FORD GASOLINE-POWERED VEHICLE REGARDLESS OF MODEL YEAR.
Every number on this page is a count of records in the federal complaint, recall, and investigation files published by NHTSA's Office of Defects Investigation. Check any specific vehicle's open recalls by VIN at nhtsa.gov/recalls.