WenmarOpen by Wenmar Pro

Service bulletins for the 1993 Chevrolet G-Series

A bulletin is a manufacturer's communication to its dealers, as NHTSA indexes it. The summary is NHTSA's. The document is the manufacturer's: read it at NHTSA. A bulletin is not a recall, and listing a model year does not mean every vehicle of it is concerned.

14 on file from NHTSA, as of 2026-10-19.

By type

By component

Bulletins, newest first
000601023A2002-03-25. Service bulletin. ENGINE AND ENGINE COOLING:ENGINE:GASOLINE. 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
0006040022000-04-06. Service bulletin. ENGINE AND ENGINE COOLING:ENGINE:GASOLINE. SUBJECT REGARDING A HARD, NO START OR EXCESSIVE GRAY OR WHITE SMOKE CONDITION ON START UP AFTER RECENT GLOW PLUG REPLACEMENT. *TT
6663091997-07-24. Service bulletin. FUEL SYSTEM, GASOLINE:DELIVERY:FUEL PUMP. ENGINE HARD TO START (REPLACE FUEL PUMP PULSATOR). *TW
3761051995-11-01. Service bulletin. ENGINE AND ENGINE COOLING:ENGINE:GASOLINE. COLD ENGINE KNOCK. *TW
5771031995-11-01. Service bulletin. POWER TRAIN:AUTOMATIC TRANSMISSION. TRANSMISSION LEAK AT REAR EXTENTION HOUSING AND PROP SHAFT. *TW
4615061995-03-06. Service bulletin. LATCHES/LOCKS/LINKAGES:DOORS:LATCH. REAR AND SIDE CARGO DOOR LATCH RATTLES. *TW
376602A1995-03-06. Service bulletin. ENGINE AND ENGINE COOLING:EXHAUST SYSTEM:MANIFOLD/HEADER/MUFFLER/TAIL PIPE. NEW CAST IRON EXHAUST MANIFOLD AND STAINLESS STEEL GASKET TO CORRECT ENGINE NOISE CONDITION. *TW
RCL/93C56A1995-02-28. Service bulletin. POWER TRAIN:AUTOMATIC TRANSMISSION. GENERAL MOTORS HAS DETERMINED THAT CERTAIN 1993 M/L AND G VANS MAY EXPERIENCE A CONDITION, AT TEMPERATURES BELOW 32 DEGREES FAHRENHEIT, WHERE THE TRANSMISSION WILL NOT SHIFT OUT OF PARK WITH THE BRAKE PEDAL DEPRESSED. TO PREVENT THIS CONDITION FORM OCCURRING, DEALERS WILL REPLACE THE CRUISE CONTROL VACUUM RELEASE VALVE AND CHECK AND ADJUST THE BTSI SOLENOID CABLE. *TW
CAMP/93C561995-02-09. Service bulletin. POWER TRAIN:AUTOMATIC TRANSMISSION. GENERAL MOTORS HAS DETERMINED THAT CERTAIN 1993 M/L AND G VANS EQUIPPED WITH CRUISE CONTROL MAY EXPERIENCE A CONDITION AT TEMPERATURES BELOW 32 DEGREES FAHRENHEIT, WHERE THE TRANSMISSION WILL NOT SHIFT OUT OF PARK WITH THE BRAKE PEDAL DEPRESSED. TO PREVENT THIS CONDITION FROM OCCURRING, DEALERS ARE TO REPLACE THE CRUISE CONTROL VACUUM RELEASE VALVE, AND CHECK AND ADJUST THE BTSI SOLENOID CABLE AS NEEDED. *TW
4761491995-02-09. Service bulletin. UNKNOWN OR OTHER. OIL PRESSURE GAUGE READING CONCERNS. *TW
4671081995-02-08. Service bulletin. POWER TRAIN:AUTOMATIC TRANSMISSION. TRANSMISSION EXTENTION SEAL LEAKS. *TW
4611021995-01-11. Service bulletin. ENGINE AND ENGINE COOLING:COOLING SYSTEM. INSUFFICIENT HEATER PERFORMANCE. *TW
MSG013851995-01-10. Service bulletin. VEHICLE SPEED CONTROL. MESSAGE ANNOUNCING MANUFACTURER RECALL 93C56. *TW
CAMP/93C561995-01-10. Service bulletin. POWER TRAIN:AUTOMATIC TRANSMISSION. MANUFACTURER RECALL - GENERAL MOTORS HAS DETERMINED THAT CERTAIN 1993 M/L AND G VANS MAY EXPERIENCE A CONDITION AT TEMPERATURES BELOW 32 DEGREES FAHRENHEIT WHERE THE TRANSMISSION WILL NOT SHIFT OUT OF PARK WITH THE BRAKE PEDAL DEPRESSED TO PREVENT THIS CONDITIONFROM OCCURRING, DEALERS WILL REPLACE THE CRUISE CONTROL VACUUM RELEASE VALVE AND CHECK AND ADJUST THE BTSI SOLENOID CABLE AS NEEDED. *TW

The summaries are NHTSA's. Each bulletin's page links NHTSA's copy of the manufacturer's document.