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.
NIPPONDENSO 10PA20 10-Cylinder
General Motors
1) Slowly discharge system using approved refrigerant recovery/recycling equipment. Remove A/C compressor, and drain compressor oil. Measure amount drained, and discard oil.
2) If no leaks exists, add drained amount plus one ounce. If excessive leak exists, remove accumulator, and drain oil. Measure amount drained, and discard oil.
3) If amount drained is less than 3 ounces, add 3 ounces. If amount drained is more than 3 ounces, add drained amount. If system components are changed, add specified amount. See 10PA20 COMPONENT REFRIGERANT OIL CAPACITIES (GENERAL MOTORS) table.
| Component | Ounces | ||
|---|---|---|---|
| Compressor | (1) | ||
| Condenser | 1.0 | ||
| Evaporator | 3.0 | ||
| Accumulator | 3.5 | ||
|
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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.