Service Procedure, Campaign Label & Claim Information

SERVICE PROCEDURE

1. Open and prop hood.

Inspection

2. Water pump pulleys are stamped (on front face) with a 4-character production manufacturing date code which is visible on pulley as installed on vehicle (see Illustration). First two (2) characters are the date code. Last two (2) characters can be disregarded. Check date code to determine if replacement is required.

Character Position: 1 2 3 4

Sample date code: F 7 - -

Character Position #1 - Month Of Production

A = January E = May J = September
B = February F = June K = October
C = March G = July L = November
D = April H = August M = December

Note: Latter I is not used.

Character Position #2 - Year of pulley production

7 = 1987 8 = 1988

Character Positions #3 & #4 - Disregard

Therefore, sample date code "F 7 - -" equals June of 1987

If inspection indicates date code stamp F7, G7, H7, J7, K7 or L7, (i.e., pulleys built between June and November of 1987) replacement is required. Follow instructions under Pulley Replacement described below.

If date code stamp is anything other than F7, G7, H7, J7, K7 or L7, replacement is NOT required. Install Campaign Identification Label and close hood.
Pulley Replacement

3. Install fender covers and disconnect negative battery cable.

4. Remove serpentine belt. To remove belt, rotate tensioner as shown in Illustration.

5. Remove heater hose pipe clips to allow sufficient room to remove water pump pulley.

6. Remove water pump pulley using Pulley Remover J25034-B or J29785-A.

7. Install new water pump pulley using Pulley Installer J25033-B or BT-7515.

8. Reinstall heater hose clips.

9. Reinstall serpentine belt. To reinstall belt, rotate tensioner as shown in Illustration. Belt routing is also shown in Illustration.



10. Install Campaign Identification Label.

11. Connect negative battery cable, remove fender covers and close hood.

CAMPAIGN IDENTIFICATION LABEL

Each vehicle corrected in accordance with the instructions outlined in this bulletin will require a "Campaign Identification Label." Each label provides a space to include the five (5) digit dealer code of the dealer performing the campaign service. This information may be inserted with a typewriter or a 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.



CLAIM INFORMATION

Submit a Product Campaign Claim with the information indicated below:
* 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 Claims Processing Manual for details on Product Campaign Claim Submission.