CAMPAIGN: CRUISE CONTROL SERVO ROD NUT MAY BE NEEDED

CONDITION GENERAL MOTORS HAS DETERMINED THAT A DEFECT WHICH RELATES TO MOTOR VEHICLE SAFETY EXISTS IN SOME EARLY PRODUCTION 1984 "B" MODELS EQUIPPED WITH 3.8L (LD5) V-6 ENGINES AND CRUISE CONTROL. THE CRUISE CONTROL ROD MAY HAVE BEEN ASSEMBLED WITHOUT A NUT DESIGNED TO PREVENT EXCESSIVE TRAVEL OF THE THROTTLE STUD. WITHOUT THIS NUT, THE THROTTLE STUD CAN JAM AND PREVENT THE THROTTLE FROM CLOSING. IF THIS WERE TO OCCUR, VEHICLE SPEED WOULD REMAIN CONSTANT EVEN THOUGH THE DRIVER HAS REMOVED HIS FOOT FROM THE ACCELERATOR PEDAL. LOSS OF THROTTLE CONTROL COULD RESULT IN A VEHICLE CRASH WITHOUT PRIOR WARNING. VEHICLES INVOLVED INVOLVED ARE CERTAIN EARLY PRODUCTION 1984 "B" MODELS EQUIPPED WITH A 3.8L (LD5) V-6 ENGINE AND CRUISE CONTROL FROM THE START OF PRODUCTION THROUGH THE FOLLOWING SERIAL NUMBER. ASSEMBLY PLANT - LANSING -- SERIAL NUMBER - EM708611 SOME VEHICLES WITHIN THE SERIAL NUMBER RANGE LISTED HAVE HAD THE CAMPAIGN CORRECTION PERFORMED IN THE ASSEMBLY PLANT BEFORE THE VEHICLE WAS SHIPPED. DEALER ACTION TO REDUCE THE POSSIBILITY OF THIS OCCURRING ON VEHICLES INVOLVED, A NYLON NUT IS TO BE ADDED TO THE CRUISE CONTROL SERVO ROD ASSEMBLY. DEALERS ARE TO SERVICE ALL VEHICLES SUBJECT TO THIS CAMPAIGN AT NO CHARGE TO THE OWNER, REGARDLESS OF MILEAGE, AGE OF VEHICLE, OR OWNERSHIP, FROM THIS TIME FORWARD. WHENEVER A VEHICLE SUBJECT TO THIS CAMPAIGN IS TAKEN INTO YOUR DEALERSHIP FOR SERVICE IN THE FUTURE, YOU SHOULD TAKE THE STEPS NECESSARY TO BE SURE THE CAMPAIGN CORRECTION HAS BEEN MADE BEFORE RESELLING OR RELEASING THE VEHICLE. OWNERS OF VEHICLES RECENTLY SOLD FROM YOUR NEW VEHICLE INVENTORY ARE TO BE CONTACTED BY THE DEALER, AND ARRANGEMENTS MADE TO MAKE THE REQUIRED MODIFICATION ACCORDING TO INSTRUCTIONS CONTAINED IN THIS BULLETIN. SERVICE PROCEDURE 1. WITH ENGINE OFF RAISE THE HOOD AND REMOVE AIR CLEANER. 2. LOCATE THE CRUISE CONTROL SERVO ROD ASSEMBLY AND INSPECT IT FOR THE PRESENCE OF A NYLON NUT AS SHOWN IN FIG. 1. 3. IF A NYLON NUT IS PRESENT INSTALL A CAMPAIGN CORRECTION LABEL AS DIRECTED IN STEP 5. 4. IF NO NUT IS PRESENT INSTALL A NYLON NUT (FURNISHED) BY SNAPPING IT INTO THE ENLARGED HOLE IN THE END OF THE CRUISE CONTROL SERVO ROD SLOT AS SHOWN IN FIGURE 1. 5. INSTALL A CAMPAIGN CORRECTION LABEL, EACH VEHICLE MODIFIED IN ACCORDANCE WITH THE INSTRUCTIONS OUTLINED IN THIS SERVICE PROCEDURE WILL REQUIRE A CAMPAIGN IDENTIFICATION LABEL. EACH LABEL PROVIDES A SPACE TO INCLUDE THE CAMPAIGN NUMBER, THE FIVE (5) DIGIT DEALER CODE OF THE DEALER PERFORMING THE CAMPAIGN SERVICE, AND THE DATE VEHICLE WAS CAMPAIGNED. THIS INFORMATION MAY BE INSERTED WITH A TYPEWRITER OR BALLPOINT PEN. WHEN INSTALLING LABEL, CLEAN THE SURFACE OF THE RADIATOR UPPER MOUNTING SUPPORT AND APPLY THE CAMPAIGN LABEL WHERE IT IS READILY VISIBLE. PARTS INFORMATION THE PARTS REQUIRED TO COMPLETE THIS CAMPAIGN (NYLON NUT PART NUMBER 3907444) ARE INCLUDED IN THE BULLETIN MAILING TO THE DEALERS WHO HAVE VEHICLES TO CORRECT. ADDITIONAL PARTS MAY BE ORDERED THROUGH YOUR ZONE OFFICE. WARRANTY INFORMATION - OPERATION LABOR OPER. LABOR TIME INSPECT AND/OR INSTALL V1910 .2 HR. A CRUISE CONTROL SERVO ROD NUT .1 HOUR FOR CLERICAL ADM. WILL BE ADDED TO THE ABOVE OPERATION.

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.