CAMPAIGN:TORQUE CONVERTER BOLTS IMPROPERLY TORQUED. GMC Truck GMC K Pickup

SUBJECT: TORQUE CONVERTER BOLTS IMPROPERLY TORQUED

MODELS: 1994 C/K 100/200 WITH M30 (FT. WAYNE ONLY)

ATTENTION

--------- THE FOLLOWING CAMPAIGN WAS SENT VIA DCS IN DECEMBER 1993. PLEASE RETAIN COPY FOR YOUR FILE.

GENERAL MOTORS HAS DETERMINED THAT CERTAIN 1994 C/K 100/200 TRUCKS EQUIPPED WITH 4L60-E AUTOMATIC TRANSMISSIONS (M30) MAY HAVE BEEN SHIPPED FROM THE FT. WAYNE ASSEMBLY PLANT WITH SOME OR ALL OF THE THREE TRANSMISSION TORQUE CONVERTER BOLTS TIGHTENED BELOW THE SPECIFIED TORQUE.

TO CORRECT THIS CONDITION, THE THREE TORQUE CONVERTER BOLTS MUST BE TORQUED TO SPECIFICATION. IF ANY OF THE BOLTS HAVE FALLEN OUT, NEW BOLTS MUST BE INSTALLED.

VEHICLES INVOLVED

INVOLVED ARE CERTAIN 1994 C/K TRUCKS BUILT AT THE FT. WAYNE ASSEMBLY PLANT WITHIN THE FOLLOWING VIN BREAKPOINTS:

YEAR PLANT FROM THROUGH ---- ------ ---- ------- 1994 FORT WAYNE 1GTDK14K9RZ519771 1GTDC14K0RZ520354

THE SPECIFIC VEHICLES INVOLVED IN THIS CAMPAIGN HAVE BEEN IDENTIFIED BY VEHICLE IDENTIFICATION NUMBER COMPUTER LISTINGS. THESE LISTINGS ARE FURNISHED TO ALL INVOLVED DEALERS WITH THE CAMPAIGN BULLETIN.

DEALERS SHOULD CONFIRM VEHICLE ELIGIBILITY THROUGH VISS (VEHICLE INFORMATION SERVICE SYSTEM) OR SERVICENET PRIOR TO BEGINNING CAMPAIGN REPAIRS.

DEALER CAMPAIGN RESPONSIBILITY

ALL UNSOLD VEHICLES IN DEALERS' POSSESSION AND SUBJECT TO THIS CAMPAIGN MUST BE HELD AND INSPECTED/REPAIRED PER THE SERVICE PROCEDURE OF THIS CAMPAIGN BULLETIN BEFORE OWNERS TAKE POSSESSION OF THESE VEHICLES.

DEALERS ARE TO SERVICE ALL VEHICLES SUBJECT TO THIS CAMPAIGN AT NO CHARGE TO OWNERS, REGARDLESS OF MILEAGE, AGE OF VEHICLE, OR OWNERSHIP, FROM THIS TIME FORWARD.

OWNERS OF VEHICLES RECENTLY SOLD FROM YOUR VEHICLE INVENTORY ARE TO BE CONTACTED BY THE DEALER AND ARRANGEMENTS MADE TO MAKE THE REQUIRED CORRECTION ACCORDING TO INSTRUCTIONS CONTAINED IN THIS BULLETIN.

IN SUMMARY, WHENEVER A VEHICLE SUBJECT TO THIS CAMPAIGN ENTERS YOUR VEHICLE INVENTORY, OR IS IN YOUR DEALERSHIP FOR SERVICE IN THE FUTURE, PLEASE TAKE THE STEPS NECESSARY TO BE SURE THE CAMPAIGN CORRECTION HAS BEEN MADE BEFORE SELLING OR RELEASING THE VEHICLE.

OWNER NOTIFICATION

OWNERS WILL NOT BE NOTIFIED OF THIS CAMPAIGN BY GMC TRUCK DIVISION. DEALERS MUST NOTIFY OWNERS OF VEHICLES SOLD FROM THEIR INVENTORY AND ARRANGE FOR A SERVICE DATE TO COMPLETE THE REPAIR.

SERVICE PROCEDURE

1. REMOVE TRANSMISSION BRACE RODS (IF EQUIPPED) FROM TORQUE CONVERTER INSPECTION COVER.

2. REMOVE NUTS ATTACHING EXHAUST MANIFOLD TO EXHAUST CROSSOVER PIPE.

3. REMOVE TRANSMISSION TORQUE CONVERTER INSPECTION COVER.

4. INSPECT FOR THREE TORQUE CONVERTER-TO-FLEX PLATE BOLTS. IF MISSING, REPLACE WITH BOLT P/N 1261968.

5. TORQUE ALL THREE BOLTS TO 63 N.M (46 LBS. FT.).

6. INSTALL INSPECTION COVER AND BOLTS. TIGHTEN BOLTS TO:

- C1,2 W/4.3L - 33 N.M (24 LBS. FT.)

- C1,2 W/5.OL/5.7L - 12 N.M (9 LBS. FT.)

- K1,2 W/ ALL ENGINES - 33 N.M (24 LBS. FT.)

7. INSTALL TRANSMISSION BRACE RODS (IF EQUIPPED). TIGHTEN BOLTS TO:

-INSPECTION COVER BOLT - 55 N.M (41 LBS. FT.)

-ENGINE MOUNT BRACKET NUT/BOLT - 70 N.M (52 LBS. FT.)

PARTS INFORMATION

PARTS ARE TO BE OBTAINED FROM GENERAL MOTORS SERVICE PARTS OPERATION (GMSPO). TO ENSURE PARTS ARE OBTAINED AS SOON AS POSSIBLE, ORDER THEM FROM GMSPO ON A C. I. 0. ORDER WITH NO SPECIAL INSTRUCTION CODE BUT ORDER UNDER AN ADVISE CODE (2).

PART NUMBER DESCRIPTION QUANTITY ----------- ------------ -------- 1261968 BOLT A.R.

WARRANTY INFORMATION

DEALERS SHOULD SUBMIT A WARRANTY CLAIM ON EACH VEHICLE COMPLETED UNDER THIS CAMPAIGN.

LABOR OPERATION *TIME PARTS TROUBLE NUMBER DESCRIPTION ALLOWANCE ALLOWANCE CODE --------- ----------- --------- --------- ------- V 8470 TORQUE CONVERTER 0.7 HRS. ** 96 BOLTS, TORQUE AND REPLACE IF MISSING

* FOR DEALER TO RECEIVE ADMINISTRATIVE TIME ALLOWANCE ASSOCIATED WITH THIS CAMPAIGN, ADD 0.1 HOUR TO THE LABOR OPERATION TIME ALLOWANCE.

** THE AMOUNT IDENTIFIED IN THE "PARTS ALLOWANCE" COLUMN ABOVE REPRESENTS 40% OF DEALER NET FOR PARTS THAT ARE FURNISHED IN THIS CAMPAIGN. THIS AMOUNT IS TO BE PLACED IN THE NET ITEM AMOUNT COLUMN OF THE CLAIM AND TYPE CODE "M."

CAMPAIGN IDENTIFICATION LABEL

EACH VEHICLE CORRECTED IN ACCORDANCE WITH THE INSTRUCTIONS OUTLINED IN THIS PRODUCT CAMPAIGN BULLETIN WILL REQUIRE A "CAMPAIGN IDENTIFICATION LABEL." EACH LABEL PROVIDES A SPACE TO INCLUDE THE CAMPAIGN NUMBER AND FIVE (5) DIGIT DEALER CODE OF THE DEALER PERFORMING THE CAMPAIGN SERVICE. THIS INFORMATION MAY BE INSERTED WITH A TYPEWRITER OR BALL POINT PEN.

EACH "CAMPAIGN IDENTIFICATION LABEL" IS TO BE LOCATED ON THE RADIATOR CORE SUPPORT IN AN AREA WHICH WILL BE VISIBLE WHEN THE VEHICLE IS BROUGHT IN FOR PERIODIC SERVICING BY THE OWNER.

APPLY "CAMPAIGN IDENTIFICATION LABEL" ONLY ON A CLEAN, DRY SURFACE.

ADMINISTRATIVE PROCEDURE

PROCEDURES COVERING THIS CAMPAIGN ARE OUTLINED IN SECTION V OF YOUR DEALERSHIP'S "GMC TRUCK WARRANTY CLAIMS PROCESSING MANUAL" #P9119.

General Motors bulletins are intended for use by professional technicians, not a "do-it-yourselfer". They are written to inform those technicians of conditions that may occur on some vehicles, or to provide information that could assist in the proper service of a vehicle. Properly trained technicians have the equipment, tools, safety instructions and know-how to do a job properly and safely. If a condition is described, do not assume that the bulletin applies to your vehicle, or that your vehicle will have that condition. See a General Motors dealer servicing your brand of General Motors vehicle for information on whether your vehicle may benefit from the information.