GMC S5500 Recalls
Item Affected: SERVICE BRAKES, HYDRAULIC:FOUNDATION COMPONENTS:MASTER CYLINDER
Date Announced: 11/30/-0001
Description of Recall:
Conequence:
Action Need To Fix It:
Notes: POSSIBILITY THAT SEAL ON PISTON IN MASTER BRAKE CYLINDER MAY, AFTER EXTENDEDUSAGE, ALLOW BRAKE FLUID TO PASS SEAL PERMITTING BRAKE PEDAL TO BE PUSHED TOFLOOR IN A SLOW GRADUAL STOP OR UPON THE FIRST AP- PLICATION OF BRAKES AFTERVEHICLE HAS BEEN STANDING FOR A PERIOD OF TIME. IS ALSO A POSSIBILITY THATINNER LINER OF VACUUM HOSE WHICH CONNECTS TO BRAKE VACUUM BOOSTER MAY COLLAPSE,CAUSING LOSS OF POWER BRAKE ASSIST. (CORRECT BY INSTALLING NEW PARTS IN BRAKEMASTER CYLINDER AND MODIFYING VACUUM HOSE ROUT- ING.)
Item Affected: SERVICE BRAKES, HYDRAULIC:FOUNDATION COMPONENTS:HOSES, LINES/PIPING, AND FITTINGS
Date Announced: 03/04/1970
Description of Recall:
Conequence:
Action Need To Fix It:
Notes: POSSIBILITY THAT DURING OPERATION STEEL BRAKE LINE AT REAR AXLE COULD CHAFE ONLEFT REAR SHOCK ABSORBER, AND THAT FRONT BRAKE HOSES ON SCHOOL BUSES MAYCONTACT TIRE, SHOCK ABSORBER OR STEERING ARM. CONTINUED CHAFING COULD WEARHOLE IN HOSE OR LINE AT POINT OF CONTACT, CAUSING LOSS OF HYDRAULIC BRAKEFLUID. (CORRECT BY INSPECTING AND RE-ROUTING STEEL LINE AND ADDING ADDITIONALCLIP TO HOLD HOSE.)
Item Affected: SERVICE BRAKES, HYDRAULIC:FOUNDATION COMPONENTS:MASTER CYLINDER
Date Announced: 08/12/1970
Description of Recall:
Conequence:
Action Need To Fix It:
Notes: POSSIBILITY THAT COVER ON DUAL HY- DRAULIC BRAKE MASTER CYLINDER MAY BECOMEDISTORTED DUE TO EXCESSIVE TIGHTENING OF ATTACHMENT BOLT. IF THIS CONDITIONEXISTS, BRAKE FLUID MAY LEAK FROM UNDER COVER AND EXCESSIVE LOSS OF BRAKE FLUIDCOULD RESULT IN REDUCED BRAKE EFFICIENCY. (CORRECT BY REPLACING WITH NEWIMPROVED TYPE COVER.)
Item Affected: STEERING:LINKAGES
Date Announced: 11/30/-0001
Description of Recall:
Conequence:
Action Need To Fix It:
Notes: POSSIBLE INSTALLATION OF INCORRECT STEERING PITMAN ARM AND DRAG LINK ASSEMBLY. THIS COULD CAUSE A LOOSE- NESS IN THE DRAG LINK TO STEERING ARM CONNECTION, WHICH COULD RESULT IN THE DRAG LINK BECOMING DISCONNECTED FROM THE STEERING ARM, CAUSING A LOSS OF STEERING CONTROL. (INSPECT AND INSTALL CORRECT PITMAN ARM AND DRAG LINK ASSEMBLY AS NECESSARY.)
Item Affected: SERVICE BRAKES, HYDRAULIC:FOUNDATION COMPONENTS:MASTER CYLINDER
Date Announced: 11/30/-0001
Description of Recall:
Conequence:
Action Need To Fix It:
Notes: POSSIBILITY THAT SEAL ON PISTON IN MASTER BRAKE CYLINDER MAY, AFTER EXTENDEDUSAGE, ALLOW BRAKE FLUID TO PASS SEAL PERMITTING BRAKE PEDAL TO BE PUSHED TOFLOOR IN A SLOW GRADUAL STOP OR UPON THE FIRST AP- PLICATION OF BRAKES AFTERVEHICLE HAS BEEN STANDING FOR A PERIOD OF TIME. IS ALSO A POSSIBILITY THATINNER LINER OF VACUUM HOSE WHICH CONNECTS TO BRAKE VACUUM BOOSTER MAY COLLAPSE,CAUSING LOSS OF POWER BRAKE ASSIST. (CORRECT BY INSTALLING NEW PARTS IN BRAKEMASTER CYLINDER AND MODIFYING VACUUM HOSE ROUT- ING.)
Item Affected: STEERING:HYDRAULIC POWER ASSIST:HOSE, PIPING, AND CONNECTIONS
Date Announced: 11/30/-0001
Description of Recall:
Conequence:
Action Need To Fix It:
Notes: POSSIBILITY THAT, DURING A FULL RIGHT HAND TURN, THE POWER STEERING PRESSURE LINES RUNNING TO THE POWER CYLINDER MAY BECOME SCORED OR PARTIALLY CRUSHED THROUGH INTERFERENCE WITH A CLAMP ON THE POWER STEERING POWER CYLINDER PISTON ROD. THIS MAY RESULT IN LOSS OF POWER ASSIST, BUT MANUAL STEERING CONTROL WOULD BE MAINTAINED WITH HIGHER EFFORTS. ALSO DURING A FULL RIGHT HAND TURN, THE LEFT FRONT TIRE COULD CONTACT THE POWER STEERING POWER CYLINDER BALL AND STUDOR ITS CLAMP. THIS CHAFING COULD CAUSE TIRE FAILURE. (INSTALL NEW POWER STEERING PRESSURE LINES, REPOSITION THE BALL STUD CLAMP, AND READJUST THE FRONT WHEEL STOPS TO ELIMINATE THE INTERFERENCE CONDITIONS.)
Item Affected: SERVICE BRAKES, HYDRAULIC:POWER ASSIST
Date Announced: 11/30/-0001
Description of Recall:
Conequence:
Action Need To Fix It:
Notes: POSSIBILITY THAT A LACK OF BRAKE POWER ASSIST MAY BE CAUSED BY A DEFECTIVE CHECK VALVE OR BY POSSIBLE INTERFERENCE BETWEEN THE BOOSTER ACTUATING HUBAND DUST SEAL RETAINER ON THE FIREWALL. LOSS OF POWER ASSIST WILL RESULT IN HIGHER THAN NORMAL BRAKE PEDAL EFFORT AND MAKE IT DIFFICULT TO STOP WITHIN A SATISFAC- TORY DISTANCE. (INSPECT, TEST, AND REPLACE PARTS AS REQUIRED.)
Item Affected: SERVICE BRAKES, HYDRAULIC:POWER ASSIST:VACUUM
Date Announced: 11/30/-0001
Description of Recall:
Conequence:
Action Need To Fix It:
Notes: POSSIBILITY THAT IMPROPER LENGTH HYDRAULIC BRAKE HOSE MAY HAVE BEEN INADVERTENTLY INSTALLED ON ONE OR BOTH SIDES OF THE FRONT WHEEL. BRAKE HOSES THAT ARE TOO LONG WILL CONTACT THE TIRE OR SHOCK ABSORBER DURING A FULL RIGHT OR FULL LEFT TURN. THIS COULD CHAFE THE HOSE AND COULD CAUSE A RUPTURE AND LOSS OF BRAKING ACTION. (INSPECT AND INSTALL CORRECT LENGTH HOSE AS REQUIRED.)
Item Affected: SERVICE BRAKES, AIR:SUPPLY:HOSES, LINES/PIPING, AND FITTINGS
Date Announced: 11/30/-0001
Description of Recall:
Conequence:
Action Need To Fix It:
Notes: POSSIBILITY AIR BRAKE HOSES WHICH EXTEND FROM THE FRONT WHEEL BRAKE CHAMBERS TO THE FRAME RAIL COULD BE IMPROPERLY ROUTED OR OF INCORRECT LENGTH. IN EITHER SITUATION, THE BRAKE HOSE MAY CONTACT THE FRONT TIRE OR SHEET METAL ON A RIGHT-OR LEFT-HAND TURN. THE BRAKE HOSE, IF CONTACTED REPEATEDLY, WILL CHAFE AT THE CONTACT POINT RESULTING IN AN AIR LEAK. THIS CONDITION COULD EVENTUALLY CAUSE A RUPTURE OF THE BRAKE HOSE RESULTING IN A LOSS OF BRAKING ACTION. (CORRECT BY REROUTING HOSES OR REPLACE IF INCORRECT LENGTH.)
