SHIFT CABLE CONTACTS THE A/C PIPE CAUSING POSSIBLE RUB

TRANSMISSION SHIFT CABLE CONTACTS THE A/C PIPE CAUSING A RUB THROUGH CONDITION

VEHICLES AFFECTED: 1987-1989 'A' W/ 2.5, 3.1, 2.8L ------------------

Some 1987, 1988 and 1989 A cars with 2.5L (VIN Code R), 3.1L (VIN Code T) and 2.8L (VIN Code W) engines with MD9 3-speed transmission and C60/C67 Air Conditioners have a potential rub through condition of the A/C pipe by the auto-transmission cable. This pipe is part of the A/C hose assembly routed along the left fender rail from evaporator to accumulator. The vibration and engine roll movement of the transaxle may cause the shift cable to rub through the A/C pipe, causing a refrigerant leak and an inoperative A/C system.

This condition may be addressed by using the following service parts and procedure to protect the A/C pipe.

Procedure For 2.5L Engine (VIN Code R)

1. Loosen the clip that holds the A/C pipe to the fender rail, See Figures 1 and 2. 2. Slide the rear rubber protective sleeve forward to the clip, as shown in Figure 2. 3. Retighten the clip to fender rail.

Procedure and Parts for 3.1L (VIN Code T) and 2.8L (VIN Code W) Engine

Service Part Numbers Part Name -------------------- --------- 3816659 Retainer - Adjustable Plastic (Chicken Band)

8919356 3/4 I.D. Flexible Convoluted Conduit

1. Slide a 6 inch piece of the flexible conduit on to the A/C pipe just in front of the valve, as shown in Figure 1 and 3, with the slit positioned on the bottom of the pipe.

2. Secure the conduit in place with the plastic retainer (chicken band) as shown in Figure 3.

The following breakpoints are vehicles that were addressed for A/C pipe rub through condition in the assembly plants.

Assembly Plant Carline Engine VIN Breakpoint -------------- ------- ------ -------------- Framingham Oldsmobile LR8 "R" JG308680 " LB6 "W" JG308680

Oklahoma City Chevrolet Both "R"and "W" 1989 Production Buick " " " 1989 Production

Doraville Oldsmobile

ALL 1987-1988 "A" BUILT PRIOR TO 1989 PRODUCTION

Oshawa # 1 Oldsmobile Both "R" and "W" 1989 "In" Production Pontiac R, W and T " " "

ALL 1988 VEHICLES BUILT AT OSHAWA #1 ARE AFFECTED -------------------------------------------------

Ramos Arizpe Chevrolet LR8 "R" 1989 Production " LB6 "W" " "

Ste. Therese Chevrolet LR8 "R" J2144838 " LB6 "W" J2145665 Oldsmobile LR8 "R" J2373638 " LB6 "W" J2377600

Use the most applicable labour operation from the Canadian Labour Time Guide and claim 0.2 hours.

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.