Recall - Crankshaft Position Sensor Failure: Overview
No.: 95-C-31GMC TRUCK
Issued: 04/28/95
SUBJECT:
CRANKSHAFT POSITION SENSOR FAILURES
MODELS:
1995 S/T TRUCKS WITH 4.3L ENGINES
General Motors has determined that CERTAIN 1995 GMC Truck 2 wheel and 4 wheel drive Sonoma 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 VIN Code "W") and automatic transmission with Electronic Transfer Case (RPO NP1) were shipped with a crankshaft 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.
VEHICLES INVOLVED
Involved are CERTAIN 1995 S/T pickup trucks equipped with 4.3L engines (VIN Code "W") and 4 wheel drive Jimmys with 4.3L engine (VIN Code "W") and automatic transmission with Electronic Transfer Case (RPO NP1) built within the VIN breakpoints.
The specific vehicles involved in this campaign have been identified by Vehicle Identification Number (VIN) 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 new 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. Dealers are to correct all affected vehicles in new and used vehicle stock prior to their sale.
Whenever a vehicle subject to this campaign is taken into your new or used vehicle inventory, or it is in your dealership for service in the future, you should take the steps necessary to ensure the campaign correction has been made before reselling or releasing the vehicle.
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. If the name and address of the owner of an involved vehicle was unavailable to GMC Truck Division at the time of campaign initiation, the dealer must determine the owner's name and address from the dealership sales records. Please provide this information directly on the second copy of the listing next to the applicable VIN so that our records may be updated and the appropriate notification mailed to the owner. This second copy should then be submitted to the address listed below in the previously supplied yellow campaign envelopes.
GMC Truck Division
General Motors Corporation
101 Union Street
Plymouth, Michigan 48170
OWNER NOTIFICATION
Owners will be notified of this campaign on their vehicles by GMC Truck Division (see copy of owner letter included with this bulletin). A listing of owner names and addresses has been furnished to the involved dealers to enable dealers to follow up with owners involved in this campaign, This listing may contain owner names and addresses obtained from State Motor Vehicle Registration records. The use of such motor vehicle registration data for any other purpose is a violation of law in several states. Accordingly, you are urged to limit the use of this listing to this campaign.
PARTS INFORMATION
50% of parts required for this campaign will be preshipped to involved dealers of record. This preshipment will occur the week of May 1, 1995. Parts received for recently transferred vehicles should be forwarded by the original dealer (with an accompanying phone call) to the dealer that received the transferred vehicle.
Additional parts required to complete this campaign 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.O. order with no special instruction code but order under an advise code (2). All Goodwrench Parts System test dealers should order on a "VIP" order.
Part Number Description Quantity
10456292 Sensor Assembly - 1
Crankshaft Position
WARRANTY INFORMATION
Dealers should submit a warranty claim on each vehicle completed under this campaign.
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.