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CAMPAIGN: INCORRECT ECM (MAY REQUIRE PROM CHANGE)

THE FOLLOWING DCS WAS SENT TO INVOLVED DEALERS AUGUST 30, 1991. NO CAMPAIGN BULLETIN OR OWNER LETTER WILL BE SENT. ********************************************************************** A T T E N T I O N: S E R V I C E M A N A G E R **********************************************************************

I M P O R T A N T

G M C T R U C K R E C A L L N O T I C E

************************************************************ THIS MESSAGE SHOULD BE DELIVERED TO DEALER SALES MANAGER AND SERVICE MANAGER IMMEDIATELY ************************************************************

I M P O R T A N T

G M C T R U C K N O T I C E

S T O P D E L I V E R Y

***********************************************************

SUBJECT: VEHICLE STOP DELIVERY NOTIFICATION

MODELS: 1992 C/K TRUCKS WITH 5.0L ENGINE

GENERAL MOTORS HAS DETERMINED THAT THE FOLLOWING TRUCKS WHICH HAVE BEEN SHIPPED TO DEALERS MAY HAVE AN INCORRECT PROM.

SELLING SHIP TO DEALER CODE DEALER CODE VEHICLE IDENTIFICATION (LIST SORTED IN SELLING DEALER CODE ORDER) ***************************************************** 06047 06047 1GTFK24H3NE500325 06117 06117 1GTEK14H0NE500711 06146 06146 1GTEC14HXNE501054 06217 06217 1GTEC14H1NE500147 06429 06429 1GTEK14H6NE501877 06455 06455 1GTEK14H3NE502520 10141 10141 1GTEK14H4NE500274 10396 10396 1GTEC14HXNE501135 10399 10399 1GTEK14H5NE500364 10582 10582 1GTEC14H8NE500467 18081 18081 1GTEK14H6NE502074 21164 21164 1GTEC14H6NE501794 21184 21184 1GTEC14H0NE501970 21184 21184 1GTEC14H1NE502187 21261 21261 1GTDC14HXNZ500717 26184 26184 1GTEK14H9NE502716 30361 30361 1GTDC14H4NZ500051 30361 30361 1GTDC14H2NE501559 30365 30365 1GTEK14H0NE500966 30573 30573 1GTFC24H2NE500524 30617 30617 1GTEK14H0NE500644 30851 30851 1GTDC14H8NZ500537 40158 40158 1GTEK14H4NE501635 40563 40563 1GTDC14H2NE500525 42078 42078 1GTEC14H1NZ500464 42078 42078 1GTEC14HXNE500227 42078 42078 1GTEC14H0NE500494 42238 42238 1GTEC14H8NZ500249 42307 42307 1GTEC14H4NE500336 50592 50592 2GTEK19H0N1501030 51094 51094 1GTDC14H8NZ500408 51094 51094 1GTDC14H2NE502632 51228 51228 1GTEC14H7NZ500291

THESE VEHICLES SHOULD NOT BE DELIVERED UNTIL THE FOLLOWING CAMPAIGN IS PREFORMED.

IF A VEHICLE HAS BEEN SOLD, CONTACT THE OWNER IMMEDIATELY TO MAKE THIS CORRECTION.

DEFECT INVOLVED

GENERAL MOTORS HAS DETERMINED THAT CERTAIN 1992 C/K TRUCKS WITH A 5.0L ENGINE MAY HAVE AN INCORRECT ENGINE CONTROL MODULE (ECM) AND WILL REQUIRE A PROM CHANGE. CHECK FOR INCORRECT PROM AND REPAIR PER THE CHART IN THE PARTS INFORMATION SECTION OF THIS CAMPAIGN.

VEHICLES INVOLVED

DEALER CODES AND VEHICLES INVOLVED ARE LISTED ABOVE

DEALER CAMPAIGN RESPONSIBILITY

DEALERS ARE TO SERVICE ALL VEHICLES SUBJECT TO THIS CAMPAIGN AT NO CHARGE TO OWNERS, REGARDLESS OF MILAGE, AGE OF VEHICLE, OR OWNERSHIP, FROM THIS TIME FORWARD. DEALERS ARE TO CORRECT ALL EFFECTED VEHICLES IN NEW VEHICLE STOCK PRIOR TO THEIR SALE.

SHOULD VEHICLES BE SOLD INADVERTENTLY FROM YOUR NEW VEHICLE INVENTORY, PRIOR TO REPAIR, OWNERS ARE TO BE CONTACTED BY THE DEALER AND ARRANGEMENTS MADE TO MAKE THE REQUIRED CORRECTION ACCORDING TO THE INSTRUCTIONS CONTAINED IN THIS BULLETIN.

OWNER NOTIFICATION

THERE WILL BE NO OWNER LETTER SENT OUT WITH THIS CAMPAIGN. DUE TO THE STOP SALE ISSUED PRIOR TO VEHICLE SALE, IT IS ANTICIPATED THE VEHICLES SHOULD BE IN YOUR NEW VEHICLE INVENTORY AND SHOULD BE REPAIRED PRIOR TO RETAIL SALE. IF A UNIT HAS BEEN RETAILED, IN ORDER TO MAINTAIN CUSTOMER SATISFACTION, CONTACT THE OWNER IMMEDIATELY AND ARRANGE TO CORRECT THIS CONDITION ON HIS/HER VEHICLE.

SERVICE INFORMATION

TO REPLACE THE PROM, REFER TO THE 1992 LIGHT DUTY TRUCK FUEL AND EMISSIONS SERVICE MANUAL (X-9236) SECTION 3-219.

PARTS INFORMATION

PARTS REQUIRED TO COMPLETE THIS CAMPAIGN WILL BE SHIPPED TO INVOLVED DEALERS BY GMC TRUCK ON A NO CHARGE BASIS. ANY QUESTIONS PERTAINING TO PARTS SHORTAGES, ETC., SHOULD BE DIRECTED TO ADISTRA CORPORATION (313) 455-9072.

DO NOT ORDER PARTS FOR THIS CAMPAIGN FROM GENERAL MOTORS SERVICE PARTS OPERATION (GMSPO).

EMISSION PROM SCANNER PART TRANSMISSION SYSTEM BROADCAST CODE PROM I.D. NUMBER ************ ********* ************** ********* ******** 4SPD AUTO. CALIF. ATPD 5731 16145921 5SPD MAN. FEDERAL AWHD 5491 16155853

WARRANTY INFORMATION

DEALERS SHOULD SUBMIT AN ACCURATELY FILLED OUT WARRANTY REPAIR ORDER ON EACH VEHICLE COMPLETED UNDER THIS CAMPAIGN.

LABOR OPERATION *TIME TROUBLE NUMBER DESCRIPTION ALLOWANCE CODE ********* ***************** ********* ******* V7000 INSTALL NEW PROM 0.6 HR 96

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

CAMPAIGN IDENTIFICATION LABEL

EACH VEHICLE CORRECTED IN ACCORDANCE WITH THE INSTRUCTIONS OUTLINED IN THIS CAMPAIGN WILL REQUIRE A "CAMPAIGN IDENTIFICATION LABEL". EACH LABEL PROVIDES A SPACE TO INCLUDE THE CAMPAIGN NUMBER AND THE 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 "GM TRUCK CLAIMS PROCESSING MANUAL" #P8919.

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.