SOME 1980-83 "A" PICK-UP MAY EXPERIENCE A CORRODING CONDITION ON THE AIR INJECTION REACTION (A.I.R.) PIPE ASSEMBLIES OR CHECK VALVES. REPLACEMENT STAINLESS STEEL AIR INJECTION PIPE ASSEMBLIES AND CHECK VALVES ARE NOW AVAILABLE FROM WDDGM FOR SERVICE ON 1980-83 VEHICLES WITH V8 AND 90 DEGREE V6. MODELS AFFECTED ARE 1980-83 "A" PICK-UP WITH 3.8L (229) V6, 4.4L (267) V8, AND 5.0L (305) V8 ENGINES WITH CLOSED LOOP EMISSION SYSTEMS. USE THE "A" PICK-UP SERVICE MANUAL FOR THE CORRECT SERVICE PROCEDURES. REFER TO SECTION 6E1-EMISSION CONTROLS. USE THE FOLLOWING CHARTS FOR THE REPLACEMENT PART NUMBERS. A.I.R. PIPES ORIGINAL PART NUMBER STAINLESS STEEL ENGINE PLAIN STEEL - CHROME PLATED NUMBER 3.8L V6 14026183 14057073 14077905 (B) L.H. SIDE (1981) (1983)
3.8L V6 14045891 14079233 (A) L.H. SIDE (1982)
3.8L V6 14015580 14067302 14077906 R.H. SIDE (1981-82) (1983)
4.4 5.0L V8 14017723 14045889 14077907 L.H. SIDE (1980-82) (1983)
4.4L 5.0L V8 14015560 14026182 14045890 14077908 R.H. SIDE (1980) (1981-82) (1983) NOTES: (A) USE WITH AXIAL-6 A/C COMPRESSOR (B) USE WITH RADIAL-4 A/C COMPRESSOR
A.I.R. CHECK VALVES ORIGINAL 22016902 22034703 22041203 PART NUMBER (1980-81) (1982-83)
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.