CAMPAIGN: LOWER FUEL PIPE LEAK (REPLACE FILLER PIPE)

1987 'G' Vans Built at Scarborough

TO: ALL GENERAL MOTORS DEALERS

DEFECT INVOLVED:

General Motors of Canada has determined that certain 1987 'G' Vans fail to conform to the requirements of Federal Motor Vehicle Safety Standard (FMVSS) 301, "Fuel System Integrity." These vehicles were assembled with fuel tank lower filler pipes which might have small holes at some spot welds used to attach a mounting bracket. These small holes could allow fuel to leak from the pipe during situations such as refuelling and turning maneuvers. In the event of a collision impact, a leaky filler pipe could allow fuel spillage in excess of the amount prescribed by FMVSS 301. Fuel spillage during and after a collision could result in a fire.

The subject 1987 'G' Vans were all built with either a 125 inch or 146 inch wheelbase and assembled at the Scarborough Plant. To correct this noncompliance, GMC Dealers are to replace the fuel tank lower filler pipe on each involved vehicle. This service is to be completed for owners at no charge.

VEHICLES INVOLVED:

Involved are certain 1987 G-Vans with 125" and 146" wheelbases built at Scarborough within the following VIN breakpoints:

Assembly Plant From Through -------- ---- -------

GMC Scarborough H4519781 H4520277

CHEV Scarborough H4142040 H4142896

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:

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 your 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 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.

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. The listings provided are for campaign activity only and should not be used for any other purpose.

PARTS INFORMATION:

Parts required are to be obtained through regular channels as follows:

P/N Description Quantity -------- ----------- --------

14038864 Neck, Fuel Tank Filler Lower 1

PARTS AND LABOUR CLAIM INFORMATION:

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

Repair Code Description Time Allowance ----------- ----------- --------------

2A Replace Lower Fuel Tank 1.0 Filler Neck

Time allowance includes 0.1 hour for Dealer administrative detail associated with this campaign. Parts credit will be based on Dealer net plus 30% to cover parts handling.

SERVICE PROCEDURE:

1. Drain fuel tank using procedures on Page 4-34 of the Fuel and Driveability Service Manual, X-8736.

2. Raise vehicle.

3. Loosen clamps on the hoses connecting the upper and lower fuel tank filler necks to the fuel tank, see Figure 1, and vent line.

4. Support fuel tank and remove the fuel tank retaining straps.

5. Lower fuel tank six inches (6").

6. Remove and discard lower fuel tank filler neck.

7. Install new lower fuel tank filler neck.

8. Reinstall fuel tank and retaining straps and torque nuts to 14 N.m (10 lb ft).

9. Tighten fuel tank filler neck and vent line hose clamps to 1.8-2.2 N.m (16-20 lb in).

10. Refill fuel tank.

INSTALLATION OF 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.

Dear General Motors Customer:

This notice is being sent to you in accordance with the requirements of the Canada Motor Vehicle Safety Act.

General Motors of Canada has determined that certain 1987 'G' Vans fail to conform to the requirements of Federal Motor Vehicle Safety Standard (FMVSS) 301, "Fuel System Integrity." These vehicles were assembled with fuel tank lower filler pipes which might have small holes at some spot welds used to attach a mounting bracket. These small holes could allow fuel to leak from the pipe during situations such as refuelling and timing maneuvers. In the event of a collision impact, a leaky filler pipe could allow fuel spillage in excess of the amount prescribed by FMVSS 301. Fuel spillage during and after a collision could result in a fire.

Instructions for performing this service have been sent to your GM Dealer. Please contact your Dealer to arrange a service date. The labour time necessary to perform this correction will take approximately 1/2 hour. Please ask your Dealer if you wish to know how much additional time is needed to process your vehicle.

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

Further assistance, if required, may be obtained from the General Motors Zone Office nearest you. Your vehicle Owner's Manual provides the location and phone number of each respective Zone Office.

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

Technical Services Department General Motors of Canada Limited

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.