CAMPAIGN: SERPENTINE BELT TENSIONER - POSSIBLE REPLACE. Chevrolet Celebrity 1987

For 1990-2009 cars

# CAMPAIGN: SERPENTINE BELT TENSIONER - POSSIBLE REPLACE

#### Model and Year: 1987 CHEVROLET CELEBRITY MODELS EQUIPPED WITH 2.5L ENGINE (RPO LR8, VIN CODE R)

General Motors has determined some 1987 Chevrolet Celebrity models equipped with a 2.5L engine may experience loss of serpentine accessory drive belt tension. This condition results in loss of accessory drive component operation.

To prevent the possibility of this condition occurring, the serpentine belt tensioner must be inspected for suspect codes and, if required, replaced.

#### VEHICLES INVOLVED

Involved are certain 1987 Chevrolet Celebrity models equipped with a 2.5L engine (RPO LR8, VIN Code R) and produced within the following VIN breakpoints:

PLANT FROM THROUGH ----- ---- ------- Framingham HG192299 HG196465 Oklahoma City H6252109 H6269529 Ste. Therese H2100131 H2100416 Ramos Arizpe HS500574 HS501175

Involved vehicles have been identified by Vehicle Identification Number Computer Listings. Computer listings contain the complete Vehicle Identification Number, owner name and address data, and are furnished to the involved dealers with the campaign bulletin. Owner name and address data furnished will enable dealers to follow-up with owners involved in this campaign.

These listings 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 the follow-up necessary to complete this campaign. Any dealer not receiving a computer listing with the campaign bulletin has no involved vehicles currently assigned.

#### OWNER NOTIFICATION

Owners will be notified of this campaign on their vehicles by Chevrolet Motor Division (see copy of Owner Letter included with this bulletin).

#### DEALER CAMPAIGN RESPONSIBILITY

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.

Whenever a vehicle subject to this campaign is taken into new or used vehicle inventory, or it is in your dealership for service in the future, you should take the steps necessary to be sure the campaign correction has been made efore 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 correction according to instructions contained in this bulletin.

#### PARTS INFORMATION

Parts required to complete this campaign are to be obtained from General Motors Service Parts Operations (GMSPO). To ensure these parts will be obtained as soon as possible, they should be ordered from GMSPO on a C.I.O. with no special instruction code, but on advise code (2).

PART NUMBER DESCRIPTION QUANTITY/VEHICLE ----------- ----------- ---------------- 10040810 Belt Tensioner 1 As required*

* It is estimated that 33% of the approximately 7,700 total Chevrolet vehicles involved will require tensioner replacement. Order parts accordingly, based on attached involved vehicle listing.

#### SERVICE PROCEDURE

1. Inspect tensioner code located approximately 5-1/4 inches from top mounting bolt hole for the power steering pump.

If code is 187, 197, 817, or 917, replacement is required. Follow replacement instructions below.

If code is NOT one of the suspect codes listed above, replacement is NOT required, proceed to step 12.

2. Disconnect negative battery cable.

3. Drain engine coolant into a clean container and save for reuse.

4. Rotate serpentine belt tensioner to release belt tension and remove belt.

5. Remove power steering pump mounting bolts.

6. Remove tensioner. New tensioner assembly comes with a seal.

BE SURE TO CLEAN MATING SURFACE ON BLOCK PRIOR TO INSTALLATION.

7. Install new tensioner. Torque bolts to 50 Nm (37 lb.ft.).

8. Reinstall power steering pump. Torque bolts to 27 Nm (20 lb.ft.)

9. Reinstall serpentine belt.

10. With coolant saved in step 3, refill cooling system to proper level. Top off as required.

11. Reinstall negative battery cable.

12. Install Campaign Identification Label.

#### CAMPAIGN IDENTIFICATION LABEL (Figure 2)

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 five digit dealer code of the dealer perfoming the campaign service. This infomation may be inserted with a typewriter or ballpoint 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.

#### CLAIM INFORMATION

Submit a Product Campaign Claim with the information indicated below:

* FAILED PARTS LABOR LAB OTH REPAIR PERFORMED PC PART NO. ALLOW FC OP HRS HRS ---------------- -- -------- ----- -- ----- --- ---

Inspect Only-Tensioner 00 V4190 0.2 0.1 Replacement Not Required Or Vehicle Previously Repaired

Inspect Tensioner Code 1 10040810 ** 00 V4191 0.7 0.1 And Replace Tensioner

* Campaign Administrative Allowance

** The "Parts Allowance" should be the sum total of the current GMSPO Dealer Net price plus 30% of all parts required for the repair.

Dealers will automatically receive the correct labor and material allowance based on the labor operation performed.

Refer to the Chevrolet Claim Processing Manual for details on Product Campaign Claim submission.

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.