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.
Leaks Or Internal Damage, For Example Noises Or No Output
For vehicles with an electrically-driven A/C compressor, de-energize the high voltage system before removing the A/C compressor.
-- Discharge the refrigerant circuit.
-- Remove the A/C compressor.
In the case of internal damage (on A/C compressor), flush refrigerant circuit with refrigerant R134a, refer to REFRIGERANT CIRCUIT, FLUSHING (CLEANING) WITH REFRIGERANT R134A .
If a different A/C compressor is installed with a different refrigerant oil, the refrigerant circuit is to be flushed with refrigerant R134a, refer to REFRIGERANT CIRCUIT, FLUSHING (CLEANING) WITH REFRIGERANT R134A .
-- Replace receiver/dryer/dryer cartridge and expansion valve or reservoir and restrictor.
-- If a leak is present, check the expansion valve for debris or corrosion and replace if necessary.
-- Assemble, evacuate and charge the refrigerant circuit.
NO RELATED
Use the Manual With the Right Hardware
Pair factory procedures with proven DIY tools so the instructions are easier to execute.
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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.