Technical Service Bulletins (TSBs) for the 1991 F-150 are official communications between Ford & their dealerships that describe processes for troubleshooting or fixing certain common problems. All vehicle manufacturers are required by U.S. law to make their TSBs available to the public.

    STEERING:GEAR BOX (OTHER THAN RACK AND PINION)

    • TSB #951515

      Date Announced:
      JUL 01, 1995
      NHTSA ID:
      #45943

      STEERING GEAR-REPLACEMENT OF BENDIX, STEERING GEAR WITH NEW ROSS STEEERING GEAR. *SD Read More »

    • TSB #95527

      Date Announced:
      MAY 01, 1995
      NHTSA ID:
      #45075

      STEERING-POWER-HIGH EFFORTS IN LEFT TURNS- VEHICLES WITH BENDIX C300N OR C500N STEERING GEAR AND ZF POWER STEERING PUMP. *TW Read More »

    • TSB #95327

      Date Announced:
      FEB 01, 1995
      NHTSA ID:
      #39234

      STEERING - REVISED CAMBER SPECIFICATION. *TW Read More »

    STEERING:RACK AND PINION

    • TSB #94258

      Date Announced:
      DEC 01, 1994
      NHTSA ID:
      #38058

      REPLACEMENT OF BENDIX STEERING GEAR WITH NEW ROSS STEERING GEAR. *TW Read More »

    • TSB #94258

      Date Announced:
      DEC 01, 1994
      NHTSA ID:
      #38058

      REPLACEMENT OF BENDIX STEERING GEAR WITH NEW ROSS STEERING GEAR. *TW Read More »

    STEERING:HYDRAULIC POWER ASSIST SYSTEM

    • TSB #95527

      Date Announced:
      MAR 01, 1995
      NHTSA ID:
      #39895

      STEERING - POWER - LOSS OF ASSIST/MOMENTARY AND RANDOM STICK/BIND AT LOW SPEEDS. *TW Read More »

    • TSB #95620

      Date Announced:
      MAR 01, 1995
      NHTSA ID:
      #3055700

      UNKNOWN Read More »

    SUSPENSION

    • TSB #985A46

      Date Announced:
      MAR 18, 1998
      NHTSA ID:
      #613007

      SOME VEHICLES MAY EXHIBIT A DRIFT OR PULL TO THE LEFT WHILE BRAKING. *TT Read More »

    SUSPENSION:FRONT

    SUSPENSION:FRONT:SPRINGS:COIL SPRINGS

    • TSB #97218

      Date Announced:
      JAN 20, 1997
      NHTSA ID:
      #51417

      SUSPENSION - NOISE FROM FRONT SPRING REAR HANGER - REVISED REAR SPRING HANGER INSULATOR PAD - VEHICLES EQUIPPED WITH 6000, 7000 OR 9000 LB AXLES BUILT THROUGH 10/1/97. *TW Read More »

    SUSPENSION:FRONT:SPRINGS:LEAF SPRING ASSEMBLY:HANGER,BRACKET

    • TSB #97310

      Date Announced:
      FEB 03, 1997
      NHTSA ID:
      #51669

      NOISE- "POPPING/CREAKING"- FRONT FRAME OR SUSPENSION BRACKETS- FRAME- "POPPING/CREAKING"- FASTENER REPLACEMENT. *JD Read More »

    SERVICE BRAKES, HYDRAULIC:FOUNDATION COMPONENTS:DISC

    • TSB #985A13

      Date Announced:
      MAR 18, 1998
      NHTSA ID:
      #601012

      THE USE OF PETROLEUM-BASED GREASE AS A LUBRICANT IN SERVICING DISC BRAKES IS NO LONGER ACCEPTABLE. *YC Read More »

    • TSB #985A13

      Date Announced:
      MAR 18, 1998
      NHTSA ID:
      #601012

      THE USE OF PETROLEUM-BASED GREASE AS A LUBRICANT IN SERVICING DISC BRAKES IS NO LONGER ACCEPTABLE. *YC Read More »

    SERVICE BRAKES, HYDRAULIC:FOUNDATION COMPONENTS:DISC:CALIPER

    • TSB #942411

      Date Announced:
      NOV 01, 1994
      NHTSA ID:
      #37762

      BRAKES - CALIPERS - FRONT CALIPER PISTON BOOTS DAMAGED. *TW Read More »

    SERVICE BRAKES, HYDRAULIC:ANTILOCK/TRACTION CONTROL/ELECTRONIC LIMITED SLIP

    • TSB #95212

      Date Announced:
      OCT 01, 1995
      NHTSA ID:
      #46478

      THE USE OF PETROLEUM-BASED GREASE AS A LUBRICANT IN SERVICING DISC BRAKES IS NO LONGER ACCEPTABLE BECAUSE IT MAY BE INCOMPATIBLE WITH THE RUBBER MATERIAL USED IN THE DISC BRAKE SYSTEM. Read More »

    • TSB #95212

      Date Announced:
      OCT 01, 1995
      NHTSA ID:
      #46478

      THE USE OF PETROLEUM-BASED GREASE AS A LUBRICANT IN SERVICING DISC BRAKES IS NO LONGER ACCEPTABLE BECAUSE IT MAY BE INCOMPATIBLE WITH THE RUBBER MATERIAL USED IN THE DISC BRAKE SYSTEM. Read More »

    SERVICE BRAKES, AIR:SUPPLY:COMPRESSOR

    • TSB #962528

      Date Announced:
      DEC 02, 1996
      NHTSA ID:
      #50984

      BRAKES - AIR COMPRESSOR/AIR PUMP SUPPORT BRACKET BROKEN - VEHICLES WITH 7.0L ENGINE - ENGINE - 7.0L - ACCESSORY DRIVE BELT ROLL - NOISE - RATTLE - AIR BRAKE COMPRESSOR/AIR PUMP SUPPORT BRACKET CRACKED- VEHICLES WITH 7.0L ENGINE. Read More »

    ENGINE AND ENGINE COOLING:ENGINE

    ENGINE AND ENGINE COOLING:ENGINE:GASOLINE

    • TSB #99816

      Date Announced:
      MAY 03, 1999
      NHTSA ID:
      #606420

      FORD MOTOR COMPANY NOW RECOMMENDS SAE 5W-30 VISCOSITY GRADE FOR SERVICING ANY FORD GASOLINE-POWERED VEHICLE REGARDLESS OF MODEL YEAR. *TT Read More »

    • TSB #BC4178950401

      Date Announced:
      APR 01, 1995
      NHTSA ID:
      #3055145

      UNKNOWN Read More »

    • TSB #9588

      Date Announced:
      APR 01, 1995
      NHTSA ID:
      #41029

      KNOCKING NOISE ON INITIAL START-UP. *TW Read More »

    • TSB #95210

      Date Announced:
      JAN 01, 1995
      NHTSA ID:
      #39124

      ENGINE HESITATION/SURGE DURING LIGHT ACCELERATION. *TW Read More »

    ENGINE AND ENGINE COOLING:ENGINE:GASOLINE:BELTS AND ASSOCIATED PULLEYS

    • TSB #9748

      Date Announced:
      FEB 17, 1997
      NHTSA ID:
      #51691

      ACCESSORY DRIVE BELTS- FEAD BELT COMES OFF- VEHICLES WITH 4.9L ENGINE. *JD Read More »

    ENGINE AND ENGINE COOLING:COOLING SYSTEM

    ENGINE AND ENGINE COOLING:EXHAUST SYSTEM

    • TSB #9864

      Date Announced:
      MAR 30, 1998
      NHTSA ID:
      #601312

      INFORMATION ON A BUZZING OR RATTLE NOISE FROM THE EXHAUST SYSTEM. *TT Read More »

    ENGINE AND ENGINE COOLING:EXHAUST SYSTEM:EMISSION CONTROL:CATALYTIC CONVERTOR

    • TSB #95620

      Date Announced:
      MAR 01, 1995
      NHTSA ID:
      #3055700

      UNKNOWN Read More »

    • TSB #BC3131950301

      Date Announced:
      MAR 01, 1995
      NHTSA ID:
      #39190

      SERVICE PROCEDURE FOR CATALYTIC CONVERTER RESTRICTION ISSUES - PROCEDURE REQUIRES THE USE OF NEW ECM, IAC VALVE AND EXPANSION CHAMBER. *TW Read More »

    POWER TRAIN:CLUTCH ASSEMBLY

    • TSB #96728

      Date Announced:
      MAR 25, 1996
      NHTSA ID:
      #613350

      SERVICE TIP INFORMATION REGARDING THE REVERSE CLUTCH PISTON AND PISTON SEAL USAGE. *TT Read More »

    POWER TRAIN:MANUAL TRANSMISSION

    • TSB #95620

      Date Announced:
      MAR 01, 1995
      NHTSA ID:
      #3055700

      UNKNOWN Read More »

    • TSB #95621

      Date Announced:
      MAR 01, 1995
      NHTSA ID:
      #39915

      THE TRANSMISSION COUNTERSHAFT BEARING END CLEARANCE MAY NOT BE WITHIN SPECIFICATION ON SOME VEHICLES. *TW Read More »

    • TSB #95322

      Date Announced:
      FEB 01, 1995
      NHTSA ID:
      #39230

      REVISED CLUTCH AND TRANSMISSION. *TW Read More »

    POWER TRAIN:AUTOMATIC TRANSMISSION

    • TSB #98167

      Date Announced:
      APR 07, 2000
      NHTSA ID:
      #609736

      TRANSMISSION-E40D-NO 2-3 UPSHIFT. SOME VEHICLES MAY EXHIBIT A NO 2-3 UPSHIFT CONDITION. *AK Read More »

    • TSB #98168

      Date Announced:
      APR 07, 2000
      NHTSA ID:
      #609737

      TRANSMISSION- E40D/4R100-1989-99-MAIN CONTROLS, SEPARATOR PLATES AND SEPARATOR PLATE GASKETS USAGE CHART. YD Read More »

    • TSB #0015

      Date Announced:
      JAN 10, 2000
      NHTSA ID:
      #612203

      INFORMATION REGARDING THE NEW TRANSMISSION COOLER FLUSHER- SERVICE TIP. *MJS Read More »

    • TSB #9888

      Date Announced:
      APR 27, 1998
      NHTSA ID:
      #601238

      INFORMATION ON A NEW TRANSMISSION FLUID USAGE CHART. *YC Read More »

    • TSB #98123

      Date Announced:
      JAN 19, 1998
      NHTSA ID:
      #605599

      SOME VEHICLES MAY EXHIBIT A FLASHING TRANSMISSION CONTROL INDICATOR LAMP (TCIL) AND DIAGNOSTIC TROUBLE CODES (DTCS) 62, 628, AND / OR 1728 MAY BE STORED IN MEMORY. *TT Read More »

    • TSB #97511

      Date Announced:
      MAR 03, 1997
      NHTSA ID:
      #51945

      FLUID- TRANSMISSION FLUID USAGE CHARTS. *JD Read More »

    • TSB #BC4321950705

      Date Announced:
      JUL 01, 1995
      NHTSA ID:
      #45059

      VEHICLES EXPERIENCING OCCASIONAL HARSH REVERSE ENGAGEMENT CONCERNS. *TW Read More »

    • TSB #951112

      Date Announced:
      JUN 01, 1995
      NHTSA ID:
      #45085

      REVISED DESIGN TRANSMISSION REAR CASE BUSHING. *TW Read More »

    • TSB #951113

      Date Announced:
      JUN 01, 1995
      NHTSA ID:
      #45086

      DELAYED FORWARD ENGAGEMENT AND/OR HEAT STAINED FORWARD CLUTCH PLATES AFTER INSTALLING CENTER SUPPORT SERVICE. *TW Read More »

    • TSB #BC4178950401

      Date Announced:
      APR 01, 1995
      NHTSA ID:
      #3055145

      UNKNOWN Read More »

    • TSB #95619

      Date Announced:
      MAR 01, 1995
      NHTSA ID:
      #39913

      NEW DESIGN TRANSMISSION RANGE SENSOR. *TW Read More »

    • TSB #95212

      Date Announced:
      JAN 01, 1995
      NHTSA ID:
      #39125

      VEHICLES MAY EXHIBIT A SHIFT CONCERN. *TW Read More »

    • TSB #942318

      Date Announced:
      NOV 01, 1994
      NHTSA ID:
      #37741

      TRANSMISSION OVERHEATING, CONVERTER COVER DISCOLORATION, CLUTCHES BURNED AND BURNT FLUID *TW Read More »

    • TSB #942415

      Date Announced:
      NOV 01, 1994
      NHTSA ID:
      #37765

      UPGRADE KIT FOR THE E40D TRANSMISSION. *TW Read More »

    POWER TRAIN:AUTOMATIC TRANSMISSION:COOLING UNIT AND LINES

    • TSB #002310

      Date Announced:
      NOV 13, 2000
      NHTSA ID:
      #616522

      SUBJECT REGARDING CONTAMINATION FROM PRIOR TRANSMISSION CONCERNS OR EXCESS WEAR MAY BE TRAPPED IN THE TRANSMISSION FLUID COOLING SYSTEM. *TT Read More »

    • TSB #0038

      Date Announced:
      FEB 07, 2000
      NHTSA ID:
      #612343

      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. Read More »

    POWER TRAIN:AUTOMATIC TRANSMISSION:TORQUE CONVERTER

    • TSB #962612

      Date Announced:
      DEC 16, 1996
      NHTSA ID:
      #50997

      TRANSAXLE - TORQUE CONVERTER REPLACEMENT GUIDELINES AND TORQUE CONVERTER/TRANSAXLE COOLING SYSTEM CLEANING PROCEDURES - SERVICE TIP. *TW Read More »

    • TSB #96249

      Date Announced:
      NOV 18, 1996
      NHTSA ID:
      #50908

      TORQUE CONVERTER - LEAK TEST PROCEDURE - SERVICE TIP. *TW Read More »

    POWER TRAIN:DRIVELINE:DRIVESHAFT

    • TSB #942321

      Date Announced:
      NOV 01, 1994
      NHTSA ID:
      #37744

      MULTI-PIECE DRIVESHAFT MISALIGNMENT WITH CENTER BEARING. *TW Read More »

    POWER TRAIN:AXLE ASSEMBLY

    • TSB #12905

      Date Announced:
      JUN 01, 1999
      NHTSA ID:
      #606937

      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. *TT Read More »

    • TSB #983074

      Date Announced:
      FEB 27, 1998
      NHTSA ID:
      #607369

      CONCERNS WITH AXLE WIND-UP AND / OR CLUNKING, POPPING, RATCHETING TYPE NOISES WHEN MAKING CORNERING MANEUVERS. *TT Read More »

    • TSB #BC0131960102

      Date Announced:
      DEC 01, 1995
      NHTSA ID:
      #46438

      4X4 FRONT AXLES MUST USE HYPOID 4X4 GEAR OIL P/N F1TZ-19580-A & HIGH TEMP 4X4 FRONT AXLE & WHEEL BEARING GREASE WHEN SERVICING. IT IS NOT RECOMMENDED TO USE HEAVIER WEIGHT LUBES IN THESE FRONT AXLES. Read More »

    POWER TRAIN:AXLE HUBS

    • TSB #9519

      Date Announced:
      JAN 01, 1995
      NHTSA ID:
      #39130

      NOISE/VIBRATION WHEN DRIVING IN 4X2 MODE WITH HUBS LOCKED. *TW Read More »

    ELECTRICAL SYSTEM

    • TSB #98246

      Date Announced:
      DEC 07, 1998
      NHTSA ID:
      #604059

      FORD MOTOR COMPANY HAS RELEASED A NEW ELECTRICAL GREASE ( F8AZ - 19G208-AA ) TO REDUCE THE POSSIBILITY OF MOISTURE CORROSION AT THE TERMINALS. *YC Read More »

    • TSB #98246

      Date Announced:
      DEC 07, 1998
      NHTSA ID:
      #604059

      FORD MOTOR COMPANY HAS RELEASED A NEW ELECTRICAL GREASE ( F8AZ - 19G208-AA ) TO REDUCE THE POSSIBILITY OF MOISTURE CORROSION AT THE TERMINALS. *YC Read More »

    • TSB #96731

      Date Announced:
      MAR 25, 1996
      NHTSA ID:
      #613353

      SUBJECT REGARDING THE STOPLAMP DIODE LOCATION AND REPLACEMENT PROCEDURE ON VEHICLES BUILT SINCE 12/90 WITH HYDRAULIC BRAKES. *TT Read More »

    ELECTRICAL SYSTEM:12V/24V/48V BATTERY

    ELECTRICAL SYSTEM:WIRING

    • TSB #99222

      Date Announced:
      OCT 18, 1999
      NHTSA ID:
      #6089681

      SUBJECT ON A WIRE HARNESS TERMINAL REPAIR KIT AVAILABLE FOR REPAIRING ELECTRICAL WIRING HARNESSES. *TT Read More »

    • TSB #99222

      Date Announced:
      OCT 18, 1999
      NHTSA ID:
      #6089681

      SUBJECT ON A WIRE HARNESS TERMINAL REPAIR KIT AVAILABLE FOR REPAIRING ELECTRICAL WIRING HARNESSES. *TT Read More »

    • TSB #96246

      Date Announced:
      NOV 18, 1996
      NHTSA ID:
      #50905

      WIRING - ELECTRICAL DIODE IDENTIFICATION AND SERVICE REPLACEMENTS. *TW Read More »

    • TSB #96246

      Date Announced:
      NOV 18, 1996
      NHTSA ID:
      #50905

      WIRING - ELECTRICAL DIODE IDENTIFICATION AND SERVICE REPLACEMENTS. *TW Read More »

    ELECTRICAL SYSTEM:WIRING:FRONT UNDERHOOD

    VISIBILITY:WINDSHIELD

    • TSB #96221

      Date Announced:
      OCT 21, 1996
      NHTSA ID:
      #50940

      WINDSHIELD AND INTERIOR GLASS - FOG/FILM. *TW Read More »

    VISIBILITY:DEFROSTER/DEFOGGER/HVAC SYSTEM

    VISIBILITY:DEFROSTER/DEFOGGER/HVAC SYSTEM:HEATER CORE

    • TSB #01156

      Date Announced:
      AUG 06, 2001
      NHTSA ID:
      #623944

      SOME VEHICLES MAY EXHIBIT HEATER CORE LEAKS. *SLC Read More »

    STRUCTURE

    • TSB #9747

      Date Announced:
      FEB 17, 1997
      NHTSA ID:
      #51689

      FRAME- RIVET REPLACEMENT WITH BOLTS- SERVICE TIPS. *JD Read More »

    STRUCTURE:BODY

    • TSB #95323

      Date Announced:
      FEB 01, 1995
      NHTSA ID:
      #39231

      TRUCKS MAY CRACK ON THE CAB FLOOR NEAR THE TRANSMISSION SHIFTER COVER AREA. *TW Read More »

    STRUCTURE:BODY:BUMPERS

    VEHICLE SPEED CONTROL

    • TSB #962420

      Date Announced:
      NOV 18, 1996
      NHTSA ID:
      #50919

      LACK OF POWER - ACCELERATOR CABLE DISLODGES FROM ACCELERATOR PEDAL - VEHICLES WITH 7.0L ENGINE - VEHICLES BUILT FROM 8/1/90 THROUGH 6/3/96. *TW Read More »

    • TSB #95410

      Date Announced:
      FEB 01, 1995
      NHTSA ID:
      #39241

      LACK OF POWER - EXCESSIVE PLAY AT THROTTLE LINKAGE. *TW Read More »

    • TSB #95213

      Date Announced:
      JAN 01, 1995
      NHTSA ID:
      #39126

      NEW FORD HOLLAND ENGINE MAY EXHIBIT THE NEED FOR FREQUENT THROTTLE LINKAGE ADJUSTMENTS. *TW Read More »

    TIRES

    • TSB #01B77

      Date Announced:
      OCT 01, 2001
      NHTSA ID:
      #628153

      OWNER NOTIFICATION PROGRAM SUPPLEMENT 7 REVISED INFORMATION - REGARDING REPLACEMENT OF WILDERNESS AT TIRES. *TT Read More »

    • TSB #9852

      Date Announced:
      APR 13, 1998
      NHTSA ID:
      #601290

      INFORMATION ON TIRE COMPANY TELEPHONE NUMBERS FOR CUSTOMER ASSISTANCE. *YC Read More »

    • TSB #9852

      Date Announced:
      APR 13, 1998
      NHTSA ID:
      #601290

      INFORMATION ON TIRE COMPANY TELEPHONE NUMBERS FOR CUSTOMER ASSISTANCE. *YC Read More »

    TIRES:TEMPORARY/EMERGENCY SPARE TIRE

    EQUIPMENT:ELECTRICAL:RADIO/TAPE DECK/CD ETC.

    • TSB #99129

      Date Announced:
      JUN 14, 1999
      NHTSA ID:
      #606460

      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. *TT Read More »

    EQUIPMENT:MECHANICAL:WRECKER AND WHEEL LIFT DEVICES

    • TSB #985A12

      Date Announced:
      MAR 18, 1998
      NHTSA ID:
      #601010

      RECOMMENDED GUIDELINES FOR TOWING BEHIND RECREATIONAL VEHICLES. *TT Read More »

    EQUIPMENT:APPLIANCE:AIR CONDITIONER

    • TSB #99196

      Date Announced:
      SEP 20, 1999
      NHTSA ID:
      #6090087

      INFORMATION ON IDENTIFYING NON-APPROVED / ALTERNATE REFRIGERANTS WHICH COULD CAUSE SAFETY, AND PERFORMANCE CONCERNS IF INSTALLED IN FORD A/C SYSTEMS. *TT Read More »

    • TSB #99196

      Date Announced:
      SEP 20, 1999
      NHTSA ID:
      #6090087

      INFORMATION ON IDENTIFYING NON-APPROVED / ALTERNATE REFRIGERANTS WHICH COULD CAUSE SAFETY, AND PERFORMANCE CONCERNS IF INSTALLED IN FORD A/C SYSTEMS. *TT Read More »

    • TSB #9848

      Date Announced:
      MAR 02, 1998
      NHTSA ID:
      #601269

      ANNOUNCING THE FORD OEM AIR CONDITIONING RETROFIT KIT AVAILABILITY. *YC Read More »

    • TSB #9848

      Date Announced:
      MAR 02, 1998
      NHTSA ID:
      #601269

      ANNOUNCING THE FORD OEM AIR CONDITIONING RETROFIT KIT AVAILABILITY. *YC Read More »

    • TSB #BC4178950401

      Date Announced:
      APR 01, 1995
      NHTSA ID:
      #3055145

      UNKNOWN Read More »

    UNKNOWN OR OTHER

    • TSB #01157

      Date Announced:
      AUG 06, 2001
      NHTSA ID:
      #623988

      INFORMATION REGARDING TRANSMISSION FLUID USAGE CHARTS. *SLC Read More »

    • TSB #98419

      Date Announced:
      MAR 02, 1998
      NHTSA ID:
      #601280

      SOME VEHICLES MAY EXHIBIT A FLASHING TRANSMISSION CONTROL INDICATOR LAMP (TCIL) AND DIAGNOSTIC TROUBLE CODES (DTCS) 62,628, AND/OR 1728. *YC Read More »

    • TSB #9768

      Date Announced:
      MAR 17, 1997
      NHTSA ID:
      #51987

      FUEL ECONOMY- CUSTOMER EXPECTATIONS VERSUS VEHICLE USAGE. *JD Read More »

    • TSB #9768

      Date Announced:
      MAR 17, 1997
      NHTSA ID:
      #51987

      FUEL ECONOMY- CUSTOMER EXPECTATIONS VERSUS VEHICLE USAGE. *JD Read More »