For 1990-2009 cars

# IMPROVED REPAIR PROCEDURE FOR CRACKS IN LEFT MOTOR COMPART.

IMPROVED REPAIR PROCEDURE FOR CRACKS IN LEFT MOTOR COMPARTMENT SIDE RAILS (INNER)

#### MODELS AFFECTED 1982-85 FIREBIRD MODELS --------------- WITH STANDARD SUSPENSION

Some 1982-85 Firebird models with standard suspension may experience a crack on the inside surface of the motor compartment side rail.

#### To repair this condition:

1. Disconnect battery and remove wheel. 2. Remove all coatings to bare metal, using sand blasting or equivalent method 1/2 inch either side of crack. 3. Drill a 1/4 inch hole at the end of the crack. 4. M.I.G. weld the crack using American Welding Society Standard E7056 wire, and 75% Argon 25% C02 gas.

#### NOTICE: ONLY M.I.G. IS APPROVED FOR THIS APPLICATION. GAS AND ARC WELDING ARE NOT APPROVED.

5. If necessary, dress weld flash in area of service bracket mounting (Step7). 6. Follow manufacturer's recommendations for painting repaired areas to restore corrosion protection. Also add corrosion protection to inside of rail using GM anti-rust compound 1052916 or equivalent. 7. Install service bracket kit per instructions.

1982 Models Kit, P/N 10094841

1983-85 Models Kit, P/N 10094842

8. Install wheel.

#### Warranty Information:

Labor Operation: T1329 Labor Time : 2.0 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.