1991 Ford F-150 TSBs
45 manufacturer communications for the 1991 Ford F-150 sit in NHTSA's public file. A TSB is factory repair guidance, not a recall — the repair is not automatically free. The 1991 F-150 problem report covers complaints, recalls, and investigations.
What the bulletins cover
Most recent service bulletins
The 20 most recent of 45 communications on file. The complete set is searchable on NHTSA's page for this vehicle.
SOME VEHICLES MAY EXHIBIT HEATER CORE LEAKS.
INFORMATION REGARDING TRANSMISSION FLUID USAGE CHARTS.
SUBJECT REGARDING CONTAMINATION FROM PRIOR TRANSMISSION CONCERNS OR EXCESS WEAR MAY BE TRAPPED IN THE TRANSMISSION FLUID COOLING SYSTEM.
TRANSMISSION-E40D-NO 2-3 UPSHIFT. SOME VEHICLES MAY EXHIBIT A NO 2-3 UPSHIFT CONDITION.
TRANSMISSION- E40D/4R100-1989-99-MAIN CONTROLS, SEPARATOR PLATES AND SEPARATOR PLATE GASKETS USAGE CHART. YD
VEHICLES MAY EXPERIENCE SOLID PARTICLE CONTAMINANTS FROM PRIOR TRANSMISSION CONCERNS OR EXCESS WEAR, MAY BE TRAPPED IN THE TRANSMISSION FLUID COOLING SYSTEM IS NOT PROPERLY FLUSHED, FLUID IN-LINE FILTER KIT.
INFORMATION REGARDING THE NEW TRANSMISSION COOLER FLUSHER- SERVICE TIP.
SUBJECT ON A WIRE HARNESS TERMINAL REPAIR KIT AVAILABLE FOR REPAIRING ELECTRICAL WIRING HARNESSES.
INFORMATION ON IDENTIFYING NON-APPROVED / ALTERNATE REFRIGERANTS WHICH COULD CAUSE SAFETY, AND PERFORMANCE CONCERNS IF INSTALLED IN FORD A/C SYSTEMS.
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.
FORD MOTOR COMPANY HAS RELEASED A NEW ELECTRICAL GREASE ( F8AZ - 19G208-AA ) TO REDUCE THE POSSIBILITY OF MOISTURE CORROSION AT THE TERMINALS.
INFORMATION ON A NEW TRANSMISSION FLUID USAGE CHART.
INFORMATION ON TIRE COMPANY TELEPHONE NUMBERS FOR CUSTOMER ASSISTANCE.
INFORMATION ON A BUZZING OR RATTLE NOISE FROM THE EXHAUST SYSTEM.
THE USE OF PETROLEUM-BASED GREASE AS A LUBRICANT IN SERVICING DISC BRAKES IS NO LONGER ACCEPTABLE.
RECOMMENDED GUIDELINES FOR TOWING BEHIND RECREATIONAL VEHICLES.
SOME VEHICLES MAY EXHIBIT A DRIFT OR PULL TO THE LEFT WHILE BRAKING.
ANNOUNCING THE FORD OEM AIR CONDITIONING RETROFIT KIT AVAILABILITY.
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.