BEGINNING ABOUT A YEAR AGO, HAVE HAD INTERMITTENT HARD PEDAL WHEN BRAKING. OCCURS RARELY, WITHOUT WARNING. NO ABS LIGHT SEEN BUT SUSPECT POSSIBLE ABS MALFUNCTION. PEDAL DOES NOT PULSATE BUT A FAINT GROWLING, GRINDING, OR BUZZING NOISE IS HEARD. MAY BE ABS MOTOR CYCLING. DURING FAILURE BRAKES ARE BARELY OPERATIVE. USUALLY R…
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BEGINNING ABOUT A YEAR AGO, HAVE HAD INTERMITTENT HARD PEDAL WHEN BRAKING. OCCURS RARELY, WITHOUT WARNING. NO ABS LIGHT SEEN BUT SUSPECT POSSIBLE ABS MALFUNCTION. PEDAL DOES NOT PULSATE BUT A FAINT GROWLING, GRINDING, OR BUZZING NOISE IS HEARD. MAY BE ABS MOTOR CYCLING. DURING FAILURE BRAKES ARE BARELY OPERATIVE. USUALLY RETURNS TO NORMAL OPERATION AFTER 2-3 PEDAL PRESSES. SOMETIMES PULLS SHARPLY LEFT, OCCASIONALLY RIGHT, ON BRAKE APPLICATION. THERE IS NO LOSS OF POWER STEERING. OCCURS MOST OFTEN AT FREEWAY SPEED BUT HAS ALSO OCCURRED AT SLOWER SPEEDS. HAS OCCURRED BOTH IN SUDDEN, HARD BRAKING AND IN VERY LIGHT USE. HAVE HAD ALL POWER COMPONENTS, ALL RUBBER HOSES, POWER STEERING PUMP, AND BOTH FRONT WHEEL BRAKE COMPONENTS PROFESSIONALLY REPLACED. VEHICLE HAS FRONT DISC/REAR DRUM AND HYDROBOOST. MECHANIC USUALLY CANNOT DUPLICATE THE PROBLEM BUT HAS DONE SO ONCE AND HAS NO EXPLANATION FOR IT. SEEKING TO LEARN POSSIBLE REASONS AND CURE.
THE RECLINER MECHANISM AND THE SEAT FRAME MAY HAVE FOAM AND/OR VINYL BETWEEN THEM, CREATING A "SOFT" JOINT. THIS "SOFT" JOINT RESULTS IN LOWER THAN SPECIFIED BOLT TORQUE WHICH LEADS TO JOINT LOOSENESS, CAUSING BOLT FATIGUE AND EVENTUAL BOLT FAILURE.
Consequence & remedy
Consequence: IF BOLT FAILURE OCCURS TO THE DRIVER'S SEAT, IT WOULDALLOW THE SEAT BACK TO SUDDENLY RECLINE, AND COULD RESULT IN LOSS OF VEHICLECONTROL AND A VEHICLE CRASH WITHOUT PRIOR WARNING.
Remedy: DEALERS WILL REMOVE THE FOAM AND/OR VINYL FROM BETWEEN THE RECLINER MECHANISM AND THE SEAT FRAME "SOFT" JOINT AND REPLACE THE RECLINER BOLTS.
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