1994 Buick Century TSBs
30 Technical Service Bulletins across 8 categories
Categories
Engine
14 bulletinsOWNERS OF SOME VEHICLES EQUIPPED WITH HYDRA-MATIC 3T40, 4T60, 4T60-E OR 4T65-E TRANSAXLES MAY COMMENT ON A GRINDING AND...
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/ OR GROWLING NOISE THAT IS NOTICEABLE WHEN STANDING IN PARK ON A HILL OR SLOPE WITH THE ENGINE RUNNING AND THE PARKING BRAKE NOT APPLIED. *TT
SOME OWNERS MAY COMMENT ON DRIVEABILITY SYMPTONS OF LONG OR HARD STARTS, CHUGGLE, ROUGH IDLE AND LIGHT OR INTERMITTENT...
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MISFIRE DUE TO CLOGGED FUEL INJECTORS. *TT
SOME V6 ENGINES MAY, ON A VERY INFREQUENT BASIS, HAVE AN OIL ODOR CONDITION THAT IS GENERALLY ENCOUNTERED AFTER THE...
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ENGINE'S OIL HAS BEEN CHANGED.TYPICALLY THE ODOR LASTS APPROXIMATELY 1000 MILES AFTER THE CHANGE OF OIL AND THEN DOES NOT REAPPEAR UNTIL THE NEXT CHANGE OF OIL. *TT
SOME OWNERS MAY EXPERIENCE A DRIVEABILITY SYMPTOM OF LONG OR HARD STARTS, CHUGGLE, ROUGH IDLE AND LIGHT OR INTERMITTENT MISFIRE.
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*TT
COMMENTS ON A TICKING TYPE NOISE THAT BEGINS SHORTLY AFTER COLD ENGINE START-UP AND GRADUALLY DIMINISHES AS THE ENGINE WARMS UP.
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*YC
VEHICLES MAY EXHIBIT A CLATTERING NOISE AT IDLE SPEED ORIGINATING FROM THE TIMING CHAIN AND FRONT COVER AREA.
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*YC
SOME VEHICLES MAY EXPERIENCE A DRIVEABILITY SYMPTOM OF LONG OR HARD STARTS, CHUGGLE, ROUGH IDLE AND LIGHT OR INTERMITTENT MISFIRE.
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*YC
INFORMATION CONCERNING ENGINE KNOCK/RATTLE OR TAP NOISE BEFORE ENGINE HAS REACHED OPERATING TEMPERATURE OR UNDER LIGHT...
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LOAD CONDITIONS AT OPERATING TEMPERATURE (REPLACE PISTON AND/OR ROD ASSEMBLIES). AK
KNOCK, RATTLE OR TAP NOISE FROM THE ENGINE BEFORE THE ENGINE HAS REACHED OPERATING TEMPERATURE OR UNDER LIGHT LOAD...
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CONDITIONS AT OPERATING TEMPERATURE KNOCK, RATTLE OR TAP NOISE FROM THE ENGINE BEFORE THE ENGINE HAS REACHED OPERATING TEMPERATURE OR UNDER LIGHT LOAD CONDITIONS AT RATURE (REPLACE PISTON AND/OR ROD ASSEMBLIES). *TW
COLD ENGINE TICK OR RATTLE AFTER START-UP (REPLACE PISTON/PIN ASSEMBLY).
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*SD
OIL LEAK AT THE ROCKER COVER.
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*TW
COLD START STALL/SAG/HESITATION/COLD ROUGH IDLE.
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*TW
EXHAUST MANIFOLD SEAL SQUEAK.
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*TW
REVISED PISTON PIN REMOVAL / INSTALLATION PROCEDURE.
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*TT
Other
6 bulletinsSOME VEHICLES EQUIPPED WITH HYDRA-MATIC 3T40, 4T60 OR 4T60-E TRANSXALES MAY COMMENT ON A GRINDING AND / OR GROWLING...
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NOISE THAT IS NOTICEABLE WHEN IN PARK ON INCLINE. *TT
COLD START RATTLE NOISE.
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*TW
GRINDING AND/OR GROWLING NOISE IN PARK ON INCLINE.*SD
UNKNOWN
COLD START RATTLE NOISE.
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*TW
HIGHWAY SPEED VIBRATION.
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*TW
Infotainment
3 bulletinsThis Preliminary Information communication provides information to the technician on how to unlock radios that are Delco TheftLock.
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Technician will use the radio to get the scrambled code. Technician will need to contact the radio unlock center to retrieve the unlock code from the scrambled code. The PI update to version D is to advise the unlock procedure is temporarily unavailable. E version update is to add administrative details.
This Preliminary Information communication provides information to the technician on how to unlock radios that are Delco TheftLock.
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Technician will use the radio to get the scrambled code. Technician will need to contact the radio unlock center to retrieve the unlock code from the scrambled code. The PI update to version D is to advise the unlock procedure is temporarily unavailable.
This Preliminary Information communication provides information to the technician on how to unlock radios that are Delco Theft Lock.
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Technician will use the radio to get the scrambled code. Technician will need to contact the radio unlock center to retrieve the unlock code from the scrambled code.
Fuel System
2 bulletinsPROM CALIBRATION REPLACEMENT FOR NOX EMISSIONS.
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*YC
SUBJECT PERTAINING TO DRIVEABILITY SYMPTOMS DUE TO FUEL INJECTOR DEPOSITS.
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*YC
Brakes
2 bulletinsCOMMENT THAT THE ABS LIGHT IS ON WITH DIAGNOSTIC TROUBLE CODES (DTC'S) 46 AND 86 SET AS CURRENT OR HISTORY.
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*YC
ABS DTC 34 AND/OR 35 MAY BE SET (REPLACE/REPAIR HARNESS).
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*SD
Steering
1 bulletinEXPERIENCING INTERMITTENT STEERING COLUMN SNAP OR CLICK NOISE WHEN TURNING.
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*YC
Pre-Delivery & Maintenance
1 bulletinCOLD START RATTLE NOISE (DIAGNOSIS/SERVICE PROCEDURE).
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*TW
Electrical
1 bulletinExpanded Availability for Remanufacture and Return (R&R) Electronic Control Modules