This 1991 Mazda Navajo factory service and repair manual is built around this specific year, engine and trim, giving you the torque values, clearances and procedures Mazda published for the LX rather than a generic small-SUV substitute. It covers the 4.0L V6 (VIN X) that powered the Navajo for this model year.
Engines covered
- 4.0L V6 (245 cu in) — OHV, naturally aspirated, gasoline
Body styles covered
- 2-door sport utility
Trims covered
- LX
Known issues on the 1991 Navajo. Six recalls are on federal record for this model year. Firestone Wilderness AT and Radial ATX/ATX II tires fitted to the Navajo can separate at the tread when run underinflated at highway speed in hot weather, risking loss of vehicle control. A bumper-mounted trailer hitch ball can cause the rear bumper to crack from fatigue and separate under extended towing. The front heat shield extension can contact and puncture the plastic fuel tank, allowing fuel or vapor to escape near a possible ignition source. Stress corrosion cracking in the studs joining the brake master cylinder to the vacuum booster can let the master cylinder separate, reducing braking effectiveness. On sunroof-equipped vehicles, incorrect hinge engagement from installation can let the sunroof glass panel separate while driving. And the automatic transmission's park pawl may not fully engage the park gear, letting the vehicle roll away or move unexpectedly even with the lever in Park. Owners have filed 49 complaints for the year. The factory diagnostic and repair procedures behind each of those systems are here.
Whether you're inspecting the brake booster studs, checking park-pawl engagement, or working through a full service interval, it keeps you on Mazda's own specification for your specific 1991 Navajo.
THE STUDS WHICH ATTACH THE BRAKE MASTER CYLINDER TO THE POWER BRAKE VACUUM BOOSTER ASSEMBLY CAN DEVELOP STRESS CORROSION CRACKING AFTER BEING OPERATED FOR AN EXTENDED PERIOD OF TIME IN THE SOUTHERN CA
IF A CRACK OCCURS, IT COULD RESULT IN ONE OR BOTH STUDS FRACTURING. THE MASTER CYLINDER COULD THEN S
DEALERS WILL REPLACE THE POWER BRAKE VACUUM BOOSTER ASSEMBLY.
VEHICLE DESCRIPTION: MULTI-PURPOSE PASSENGER VEHICLES EQUIPPED WITH FACTORY INSTALLED SUNROOF. THE SUNROOF GLASS PANEL ASSEMBLY CAN SEPARATE WHILE THE VEHICLE IS MOVING DUE TO INCORRECT HINGE ENGAGE
UNEXPECTED SEPARATION OF THE SUNROOF GLASS PANEL COULD POSSIBLY DISTRACT THE DRIVER INCREASING THE R
OWNERS WILL BE PROVIDED WITH AN INSTRUCTION BOOKLET WHICH THOROUGHLY OUTLINES, WITH ILLUSTRATIONS, T
TIRE DESCRIPTION: FIRESTONE WILDERNESS AT, SIZE P235/75R15, PRODUCED AT THE DECATUR, ILLINOIS TIRE PLANT AND ALL FIRESTONE RADIAL ATX AND RADIAL ATX II TIRES, SIZE P235/75R15. OPERATION OF THESE TIR
IF THE TREAD SEPARATES FROM THE TIRE, THE DRIVER CAN LOSE CONTROL OF THE VEHICLE, POSSIBLY RESULTING
THE REPLACEMENT/REIMBURSEMENT PROGRAM FOR THIS CAMPAIGN EXPIRED ON AUGUST 29, 2001. HOWEVER, CUSTOM
REAR BUMPER MAY BE SUSCEPTIBLE TO FATIGUE CRACKING UNDER EXTENDED TRAILER TOW SERVICE WHEN USING A BUMPER MOUNTED TRAILER HITCH.
BUMPER COULD SEPARATE FROM VEHICLE WHEN USING A BUMPERMOUNTED TRAILER HITCH BALL.
INSTALL TWO ADDITIONAL BRACKETS, ONE ADDITIONAL BAR AND ASSOCIATED FASTENERS TO PREVENT BUMPER SEPAR
FRONT HEAT SHIELD EXTENSION MAY CONTACT THE UPPER FRONT CORNER OF PLASTIC FUEL TANK DAMAGING OR PUNCTURING THE FUEL TANK.
SUCH FUEL TANK DAMAGE COULD ALLOW VAPOR AND OR FUEL TOESCAPE; THIS COULD RESULT IN A FIRE IF A SOURC
RELOCATE HEAT SHIELD; REPLACE FUEL TANK IF DAMAGED OR PUNCTURED.
WHEN THE AUTOMATIC TRANSMISSION SHIFT LEVER IS PLACED IN THE PARK POSITION, THE PARK PAWL DOES NOT ALWAYS ABUT OR ENGAGE THE PARK GEAR.
DRIVER MAY BELIEVE THE VEHICLE IS SAFELY ENGAGED IN PARKWHEN THE GEAR IS NOT TRULY ENGAGED. THIS CAN
REPAIR THE TRANSMISSION WITH A NEW PARK PAWL.
Speedometer replacement procedure
IN ACCORDANCE WITH FEDERAL REGULATIONS, FOLLOW THE PROCEDURE LISTED BELOW WHEN REPLACING A SPEEDOMETER.NOTE:MAZDA VEHICLES ARE MANUFACTURED WITH TAMPER-PROOF SPEEDOMETERS.WHEN A SPEEDOMETER IS REPLACED, THE NEW SPEEDOMETER WILL READ ZERO (0
BATTERY TEST PROCEDURE REQUIREMENTS. *TT
SPEEDOMETER REPLACEMENT PROCEDURE. *TT
WILDERNESS AT TIRE REPLACEMENT PROGRAM END WITH ATTACHED UPDATES AND PROGRAM CHANGES. *TT
FIRESTONE WILDERNESS AT TIRE REPLACEMENT SSP 53 PROGRAM END. SSP 53 ENDS SEPTEMBER 13, 2004. THIS COMMUNICATION AND THE ATTACHMENTS PROVIDE UPDATED PROGRAM END INFORMATION. *TT
FIRESTONE WILDERNESS AT TIRE REPLACEMENT SPP 53 PROGRAM END. MAZDA HAS REVISED THE EXPIRATION DATE FOR SPECIAL SERVICE PROGRAM (SSP) 53 TO SEPTEMBER 15, 2004. THIS CHANGE IS TO ENSURE THAT ALL CUSTOMERS HAVE AFFECTED TIRES REPLACED. *TT
WILDERNESS AT TIRE REPLACEMENT SSP 53. TWO TIRE SIZES FOR SSP 53 MUST NOW BE ORDERED THROUGH THE MAZDA TIRE PROGRAM. *TT
Showing the 8 most recent of 36 technical service bulletins on file with NHTSA.
THE GAS PEDAL GOT STUCK AND WHILE TRYING TO PUT THE CAR INTO NEUTRAL, THE CAR WENT INTO REVERSE WHICH CAUSED THE CAR TO ROLLOVER. *AK
SEAT BELT DID NOT PROPERLY RESTRAIN DRIVER DURING ROLLOVER ACCIDENT AT 40 MPH, RESULTING IN INJURIES. TT
WHILE DRIVING 70MPH RIGHT REAR PASSENGER FIRESTONE ATX TIRE BLEW OUT, CAUSING THE VEHICLE TO LOSE CONTROL, AND GO UNDER A SEMI -TRAILER AND ROLL OVER. VEHICLE WAS A MAZDA NAVAJO. DOT # WIHLAT51561.
PRESSED ACCELERATOR PEDAL WENT TO THE FLOOR. CAR WENT ADDITIONAL THIRTY FEET. PLEASE DESCRIBE OTHER PROBLEMS. TT
Showing the 4 most serious of 57 complaints filed with NHTSA.
