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CAMPAIGN:FUEL TANK LINES LOW TORQUE

U.S. Campaign Number Cross Reference

Chev GMC 95-C-05 95-C-05

Models: 1995 Chevrolet Astro Vans 1995 GMC Safari Vans

TO: ALL GENERAL MOTORS DEALERS

General Motors of Canada Limited has determined that a defect, which relates to motor vehicle safety, exists in certain 1995 M/L Vans with L35 engines. These vans may have fuel lines attached to the fuel tank with less than the specified torque. During the life of the vehicle, as a result of normal vibrations, these fuel lines may loosen to the point-of allowing fuel to leak from the lines when the pump is operating. If an ignition source were present, an under-vehicle fire could occur.

To correct this condition, dealers will lower the fuel tank and tighten the fuel lines to the proper torque value.

VEHICLES INVOLVED:

Involved are certain 1995 Chevrolet Astro Vans and GMC Safari Vans built within the following breakpoints:

Year Model Plant Plant Code From Through

1995 Chev Astro Baltimore B SB119880 SB122466 1995 GMC Safari Baltimore B SB507669 SB508827

NOTE: PLEASE CHECK DCS SCREEN 45 OR YOUR V.I.N. LISTING BEFORE PERFORMING CAMPAIGN TO ENSURE THAT THE VEHICLE IS AFFECTED. ONLY AFFECTED VIN'S WILL BE PAID.

All affected vehicles have been identified by the VIN listing provided to involved dealers with this bulletin. Any dealer not receiving a listing was not shipped any of the affected vehicles.

DEALER CAMPAIGN RESPONSIBILITY:

All unsold new vehicles in dealer's 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 perform this campaign on all involved vehicles at no charge to owners, regardless of kilometres traveled, age of vehicle, or ownership, from this time forward.

Owners of vehicles recently sold from your new vehicle inventory with no owner information indicated on the dealer listing, are to be contacted by the dealer, and arrangements made to make the required correction according to instructions contained in this bulletin. This could be done by mailing to such owners a copy of the owner letter accompanying this bulletin. Campaign follow-up cards should not be used for this purpose, since the owner may not as yet have received the notification letter.

In summary, whenever a vehicle subject to this campaign is taken into your new or used vehicle inventory, or is in your dealership for service in the future, please take the steps necessary to be sure the campaign correction has been made before selling or releasing the vehicle.

CAMPAIGN PROCEDURE:

Refer to Section 4 of the Service Policies and Procedures Manual for the detailed procedure on handling Product Campaigns. Dealers are requested to complete the campaign on all transfers as soon as possible.

OWNER NOTIFICATION:

All owners of record at the time of campaign release are shown on the attached computer listing and have been notified by first class mail from General Motors (see copy of owner letter included with this bulletin). the listings provided are for campaign activity only and should not be used for any other purpose.

PARTS INFORMATION:

No parts are required.

PARTS AND LABOUR CLAIM INFORMATION:

Credit for the campaign work performed will be paid upon receipt of a properly completed campaign claim card or DCS transmission in accordance with the following:

Repair Code Description Time Allowance

2A Retorque Fuel Lines at Fuel Sensor 1.3

Time allowance includes 0. 1 hour for dealer administrative detail associated with this campaign.

SERVICE PROCEDURE:

1. Drain fuel from tank using procedure outlined in the 1995 W/L Van Driveability, Emission, and Electrical Diagnosis Manual, Section 4E.

2. Raise vehicle.

3. Remove fuel tank plastic shield.

4. Loosen the filler neck hose clamp at the fuel tank and disconnect the fuel tank filler neck from the fuel tank.

5. Disconnect the fuel feed and retum flexible lines.

6. Support the fuel tank and remove the tank brackets.

7. Lower the fuel tank to the point where the vent hoses and electrical connector can be disconnected from the sending unit and disconnect them.

8. Lower the fuel tank.

9. Tighten fuel feed and retum the connections at sending unit to 27 N.m (20 lb. ft.).

10. Raise the fuel tank to the point where the vent lines and the electrical connector can be connected and reconnect them.

11. Install the fuel tank brackets and tighten the retaining bolts by hand only.

12. Back off the locking nut on the outer bolts to prevent the nut from contacting the mounting surface before the straps are tight.

13. Tighten the inner strap retaining bolts to 35 N.m (26 lbs. ft.).

14. Tighten the outer strap retaining bolts to 3.4 N..m (30 lbs. in.).

15. Tighten lock nuts to 35 N.m (26 lbs. ft.).

16. Reconnect die fuel feed and retum flexible lines.

17. Connect the fuel tank filler neck to the fuel tank and tighten the filler neck hose clamp to 2.8 N.m (25 lbs. in.).

18. Install fuel tank plastic shield.

19. Lower vehicle.

20. Replenish fuel and check for leaks.

21. Install Campaign Identification Label.

INSTALLATION OFN CAMPAIGN IDENTIFICATION LABEL

Clean surface of radiator upper mounting panel and apply a Campaign Identification Label. Make sure the correct campaign number is inserted on the label. This will indicate that the campaign has been completed.

General Motors of Canada bulletins are intended for use by professional technicians, NOT a "do-it-yourselfer." They are written to inform these 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 your General Motors dealer for information on whether your vehicle may benefit from the information.

Customer Support Department General Motors of Canada Limited

September 1994

Dear General Motors Customer

General Motors of Canada Limited has determined that a defect, which relates to motor vehicle safety, exists in certain 1995 Chevrolet Astro Vans and GMC Safari Vans. These vans may have fuel lines attached to the fuel tank with less than the specified torque. During the life of the vehicle, as a result of normal vibrations, these fuel lines may loosen to the point of allowing fuel to leak from the lines when the pump is operating. If an ignition source were present, an under-vehicle fur, could occur.

To correct this condition, your dealer will lower the fuel tank and tighten the fuel lines to the proper torque value.

This service will be provided for you at no charge.

Please contact your GM dealer as soon as possible to arrange a service date.

If parts are required, ask your dealer for details regarding their availability. If parts are not in stock, they can be ordered before scheduling your service date.

This letter identifies your vehicle. Presentation of this letter to your dealer will assist their Service personnel in completing die necessary correction to your vehicle in the shortest possible time.

We are sorry to cause you this inconvenience; however, we have taken this action in the interest of your continued satisfaction with our products.

Customer Support Department General Motors of Canada Limited

4D43

JL:il

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.