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.
Checking With RESTRICTOR And Reservoir, With Internally Regulated A/C Compressor: Notes
Connecting service station, refer to CONNECTING SERVICE STATION .
Observe test requirements, refer to PRESSURES, CHECKING .
-- Bring engine speed up to 2000 RPM.
-- Pay attention to the A/C service station pressure gauge.
Switching pressures for refrigerant circuit switches are vehicle-specific.
Connection with valve for low-pressure switch or at evaporator is only to be used for vehicles with no service connection on low-pressure side and inaccessible connection at compressor or accumulator (measurement accuracy). Only applies to certain vehicles.
Refer to REFRIGERANT CIRCUIT .
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.