CAMPAIGN:FUEL PIPE REPLACEMENT FUEL LEAK AT THROTTLE BODY

MODELS/YEARS 1984 CUTLASS CIERA & OMEGA WITH 2.5L L4 ENGINE (LR8)

CONDITION

General Motors has determined that a defect which relates to motor vehicle safety exists in certain early Production 1984 Oldsmobile Cutlass Ciera and Omega models equipped with 2.5 liter engines (LR8). The fuel system in these vehicles may leak at the Throttle Body Injection fuel feed pipe connection. Under certain conditions this could result in an underhood fire. Such a fire could, in time, spread to the passenger compartment and cause burn injuries to occupants remaining in the vehicle.

VEHICLES INVOLVED

All 1984 Oldsmobile Cutlass Ciera and Omega models equipped with a 2.5L engine within the following vehicle identification numbers:

Beginning Up To Model Assembly Plant Start Of Production and Including ----- -------------- -------------------- ------------- Omega Willow Run SOP EW317814 Cutlass Ciera Doraville SOP ED348783 Cutlass Ciera Framingham SOP EG315635

DEALER ACTION

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.

SERVICE PROCEDURE

1. Relieve fuel pressure.

a. Remove fuse marked "Fuel Pump" from fuse block in passenger compartment.

b. Crank engine - engine will start and run until fuel supply remaining in fuel lines is exhausted. When engine stops, engage starter again for 3 seconds to assure dissipation of any remaining pressure.

c. With ignition "OFF," replace "Fuel Pump" fuse.

CAUTION:

Unless this procedure is followed before replacing fuel pipe, fuel spray could occur.

2. Disconnect negative battery cable.

3. Remove air cleaner assembly.

4. Loosen fuel filter clamp screw (Figure 1).

5. Remove fuel feed pipe from Throttle Body Injection (TBI). Use a back-up wrench to prevent fuel pipe inlet nut on TBI from turning. Use a shop cloth to catch any spilled fuel.

6. Remove fuel pipe from fuel filter. Use back-up wrench on fuel filter to prevent filter from turning.

7. Install new fuel pipe. Make sure "O" ring seals are in place. Use back-up wrench on both connections. Tighten fuel pipe nut to 29 N - m (21 lbs. ft.).

8. Tighten fuel filter clamp screw securely.

9. Replace air cleaner assembly.

10. Connect negative battery cable.

11. To prime fuel system without cranking engine, connect a fused jumper wire from the positive battery cable to the fuel pump prime connector (black connector, tan/white wire), shown in Figure 2. Allow pump to run while inspecting for fuel leaks.

12. Install Campaign Identification Label. Each vehicle modified in accordance with the instructions outlined in this service procedure will require a Campaign Identification Label. Each label provides a space to include the campaign number, the five digit dealer code of the dealer performing the campaign service, and the date the campaign was performed. This information may be inserted with a typewriter or ballpoint pen. Install the label on the radiator baffle where it is readily visible.

PARTS INFORMATION

The fuel feed pipe required to complete this campaign should be ordered from WDDGM. To ensure this part will be obtained as soon as possible, it should be ordered from WDDGM on a C.I.O. order with NO special instruction code, but order on an advise cods (2).

Description Part Number ----------- ----------- TBI Fuel Feed Pipe 10029649

WARRANTY INFORMATION

Labor Description Failure Code Labor Operation Hours ------------ ------------ ---------------- ----- Replace Fuel Feed Pipe 96 V2650 .3

Parts will be credited at dealer cost plus 30%.

.1 hour for clerical administration may be added to the above operation number.

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.