Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
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HOMESERVICE MANUALSPONTIAC1987FIREBIRD V8-350 5.7LREPAIR AND DIAGNOSISTECHNICAL SERVICE BULLETINSCUSTOMER INTERESTA/C COMPRESSOR - REPITITIVE FAILURES
1987 Pontiac Firebird V8-350 5.7L
A/C Compressor - Repititive Failures
1987 Pontiac Firebird V8-350 5.7LSECTION A/C Compressor - Repititive Failures
Number 87-1-2 Date 11/86
Subject: REPETITIVE INOPERATIVE AIR CONDITIONING COMPRESSOR AND FLUSHING WITH REFRIGERANT 12
ALL WITH AIR CONDITIONING
The use of air conditioning flushing to prevent a repetitive inoperative condition of the compressor after an internal compressor malfunction has received recent attention.
After a compressor has become inoperative internally, the expansion (orifice) tube assembly should be removed and checked for contamination of the filter screens. If contamination is noted, flush the system with refrigerant 12 (R-12), following the procedure outlined in the 1987 Service Manual on page 1B-20.
On cars where the expansion tube assembly is remote from the evaporator inlet, the same flushing procedure should be followed and the expansion tube assembly checked for contamination. Repeat the flushing procedure, if required, until the screens on the expansion tube assembly do not indicate new contamination. An in-line filter is being developed for use with remote expansion tube assembly locations.
RENDER: 1.0x
NO RELATED
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.