1995 GMC Sonoma TSBs

*TT

LOAD CONDITIONS AT OPERATING TEMPERATURE (REPLACE PISTON AND/OR ROD ASSEMBLIES). AK

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

MAY BE IN HARD CONTACT WITH THE ANTI- ROTATION BRACKET SECURING THE ROLLER LIFTERS. IF THE PUSHROD IS IN HARD CONTACT, WITH THE LIFTER ANTI-ROTATION BRACKET, IT MAY NOT BE PROPERLY SEATED IN THE LIFTER WHICH MAY REDUCE PROPER OIL FLOW TO THE ROCHER ARMS AND AFFECT DURABILITY. TO CORRECT THIS CONDITION, DEALERS ARE TO INSPECT THE ENGINES FOR PROPER OIL FLOW TO THE ROCKER ARMS AND IF FOUND RESTRICTED, REPLACE BOTH ANTI-ROTATION BRACKETS AND THE #1 AND #3 EXHAUST PUSHRODS AND ROCKER ARMS.

*TW

PICKUP TRUCKS EQUIPPED WITH 4.3L ENGINES (RPO L35 - VIN CODE W) AND 1995 GMC TRUCK 4 WHEEL DRIVE JIMMYS EQUIPPED WITH 4.3L ENGINES (RPO L35 VICN CODE W) AND AUTOMATIC TRANSMISSION WITH ELECTRONIC TRANSFER CASE (RPO NP1) WERE SHIPPED WITH ACRANKSHAFT POSITION SENSOR THAT MAY FAIL DUE TO LIQUID INTRUSION. FAILURE OF THE SENSOR MAY RESULT IN ENGINE STALLING WITH A NO START OR HARD START CONDITION. TO CORRECT THIS CONDITION, DEALERS ARE TO INSTALL A NEW CRANKSHAFT POSITION SENSOR. *TW

HAVE BEEN BUILT WITH AN INCORRECT EMISSION ENGINE FAMILY DESCRIPTION NAME ON THE EMISSION LABEL. TO CORRECT THIS CONDITION, NEW LABELS WILL BE SHIPPED TO VEHICLE OWNERS WITH INSTRUCTIONS ON HOW TO INSTALL THE NEW LABEL. *TW

*SD

the Tire Pressure Monitor, Active Fuel Injector tester, multi media tester, PICO Scope, GR8 starting/charging tester and Vehicle Data Recorder tools, giving website address and step by step instructions to complete the update.

the Tire Pressure Monitor, Active Fuel Injector tester, multi media tester, PICO Scope, GR8 starting/charging tester and Vehicle Data Recorder tools, giving website address and step by step instructions to complete the update.

the Tire Pressure Monitor, Active Fuel Injector tester, multi media tester, PICO Scope, GR8 starting/charging tester and Vehicle Data Recorder tools, giving website address and step by step instructions to complete the update.

the Tire Pressure Monitor, Active Fuel Injector tester, multi media tester, PICO Scope, GR8 starting/charging tester and Vehicle Data Recorder tools, giving website address and step by step instructions to complete the update.

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.

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.

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.

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.

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.

*TT 2006 AND PRIOR CARS AND LIGHT DUTY TRUCKS. *TT

*TW

*TT

*JG

*TT

*TT

*TT