Vehicle report

1994 CHEVROLET M SERIES

Service bulletins

12 bulletins

Technical service bulletins are instructions a manufacturer sent its dealers about a known fault. They are not recalls and the work is usually not free, but they are the clearest signal of a problem the manufacturer already knows about.

PIC4696E

Service Bulletin/Repair Instructions

This Preliminary Information communication provides information to the technician on how to unlock radios that are Delco TheftLock. 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.

PIC4696D

Service Bulletin/Repair Instructions

This Preliminary Information communication provides information to the technician on how to unlock radios that are Delco TheftLock. 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.

PIC4696C

Service Bulletin/Repair Instructions

This Preliminary Information communication provides information to the technician on how to unlock radios that are Delco Theft Lock. 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.

130089009

Service Bulletin/Repair Instructions

Expanded Availability for Remanufacture and Return (R&R) Electronic Control Modules

000309001A

Service Bulletin/Repair Instructions

A BOOM NOISE INSIDE THE VEHICLE WHILE DRIVING AT SPEEDS RANGING BETWEEN 97 - 105 KM/H (60 - 65 MPH). *TT THIS BULLETIN IS REVISED AND REPLACED BULLETIN 00-03-09-001 DATED 01/01/2000. *TT UPDATED *EH

000601023A

Service Bulletin/Repair Instructions

INFORMATION USED WHEN DIAGNOSING NOISE CONDITIONS SUCH AS ENGINE RATTLE NOISE, SPARK KNOCK AT 2000 - 2500 RPM RANGE, UNDER A MODERATE TO HEAVY LOAD WITH A WARMED UP ENGINE. *TT

99034A

Service Bulletin/Repair Instructions

SOME VEHICLES MAY EXPERIENCE A HARD START CONDITION, ROUGH RUNNING ENGINE, A SERVICE ENGINE SOON LIGHT, MISFIRE, NO START, STALLS OR CATALYTIC CONVERTER ODOR DUE TO FAILURE OF THE CENTRAL MULTIPORT FUEL INJECTION (CMFI) FUEL SYSTEM ALSO KNOWN AS CENTRAL PORT INJECTION (CPI). *TT

99066A

Service Bulletin/Repair Instructions

SOME VEHICLES THAT ARE REGISTERED IN CALIFORNIA, EQUIPPED WITH A 4.3L, 5.0L OR 5.7L ENGINE AND CALIFORNIA EMISSIONS, MAY EXPERIENCE A SERVICE ENGINE SOON LIGHT, MISFIRE, ROUGH IDLE OR HARD START. *TT

000604003

Service Bulletin/Repair Instructions

SOME CUSTOMERS MAY COMMENT ON ROUGH IDLE AFTER START UP, AND / OR A SERVICE ENGINE SOON (SES) LIGHT ILLUMINATED. *TT

99034

Service Bulletin/Repair Instructions

SPECIAL POLICY ADJUSTMENT FOR VEHICLES EXPERIENCING A HARD START CONDITION, ROUGH RUNNING ENGINE, A SERVICE ENGINE SOON LIGHT, MISFIRE, NO START, STALLS OR CATALYTIC CONVERTER ORDER DUE TO FAILURE OF THE CENTRAL MULTIPORT FUEL INJECTION (CMFI) FUEL SYSTEM. *TT

837110A

Service Bulletin/Repair Instructions

PARK/NEUTRAL POSITION SWITCH CONNECTOR CANNOT BE REMOVED. YD

876507A

Service Bulletin/Repair Instructions

ROUGH IDLE AFTER START, WHEN VEHICLE HAS SAT OVERNIGHT AND POPPETS STICKING.

Reading this report

Complaint counts are reports filed with NHTSA, not failure rates. A common model collects more of them than a rare one that breaks more often.