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 MANUALSPLYMOUTH1985CONQUEST L4-2555CC 2.6L SOHC TURBOREPAIR AND DIAGNOSISHEATING AND AIR CONDITIONINGREFRIGERANT PRESSURE SENSOR / SWITCHLOW PRESSURE SENSOR / SWITCHDESCRIPTION AND OPERATION
1985 Plymouth Conquest L4-2555cc 2.6L SOHC Turbo
Low Pressure Sensor / Switch: Description and Operation
1985 Plymouth Conquest L4-2555cc 2.6L SOHC TurboSECTION Description and Operation
The dual pressure switch prevents damage to the compressor in case of system loss and over of refrigerant charge. It is installed to the liquid line of the receiver outlet. This combines the high pressure switch with low pressure switch.
The high pressure switch cuts off the electrical power supply to the magnetic clutch when refrigerant pressure rises above the setting.
The low pressure cut-out switch senses low refrigerant conditions thus preventing damage to the compressor.
RENDER: 1.0x
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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.