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 MANUALSCHEVROLET1986C 10 P/U 2WD V8-350 5.7LREPAIR AND DIAGNOSISHEATING AND AIR CONDITIONINGSERVICE AND REPAIROIL CHARGEWITH SIGNS OF EXCESSIVE OIL LEAKAGER-4 COMPRESSOR
1986 Chevrolet C 10 P/U 2WD V8-350 5.7L
R-4 Compressor
1986 Chevrolet C 10 P/U 2WD V8-350 5.7LSECTION R-4 Compressor
1. Remove the accumulator.
2. Drain, measure and record quantity of oil in accumulator.
NOTE: It is not necessary to remove and drain the R-4 compressor because the compressor only retains a minimum quantity of oil.
^ If less than 0.085 kg. (3 ounces), add 0.085 kg. (3 ounces) of new oil to system.
^ If more than 0.085 kg. (3 ounces), add the same amount of new oil as drained.
^ If a new accumulator is installed to system, add 0.057 (2 ounces) additional oil to compensate for that retained by the original accumulator desiccant.
2. Drain, measure and record quantity of oil in accumulator.
NOTE: It is not necessary to remove and drain the R-4 compressor because the compressor only retains a minimum quantity of oil.
^ If less than 0.085 kg. (3 ounces), add 0.085 kg. (3 ounces) of new oil to system.
^ If more than 0.085 kg. (3 ounces), add the same amount of new oil as drained.
^ If a new accumulator is installed to system, add 0.057 (2 ounces) additional oil to compensate for that retained by the original accumulator desiccant.
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.