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 MANUALSCHEVROLET1987R 20 P/U 2WD V8-454 7.4LREPAIR AND DIAGNOSISHEATING AND AIR CONDITIONINGSERVICE AND REPAIROIL CHARGEWITH NO SIGNS OF OIL LEAKAGEA-6 COMPRESSOR
1987 Chevrolet R 20 P/U 2WD V8-454 7.4L
A-6 Compressor
1987 Chevrolet R 20 P/U 2WD V8-454 7.4LSECTION A-6 Compressor
A-6 COMPRESSOR-0.284 kg. (10 ounces) of 525 viscosity refrigerant oil.
Add new oil during the following component replacement and conditions:
1. With no excessive oil leakage, add;
^ Compressor- Remove, drain oil, measure replace the same amount of new oil plus 0.0284 kg. (1 ounce).
^ Evaporator - Add 0.085 kg. (3 ounces).
^ Condenser - Add 0.0284 kg. (1 ounce).
Add new oil during the following component replacement and conditions:
1. With no excessive oil leakage, add;
^ Compressor- Remove, drain oil, measure replace the same amount of new oil plus 0.0284 kg. (1 ounce).
^ Evaporator - Add 0.085 kg. (3 ounces).
^ Condenser - Add 0.0284 kg. (1 ounce).
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.