How to Install an HVAC Pressure Switch on 2008 Dodge Caliber?

To install the Refrigerant Pressure Sensor/Switch, use the specified O-ring for R-134a and the correct refrigerant oil. Lubricate a new O-ring with clean refrigerant oil, install it on the A/C discharge line, secure the HVAC pressure switch, connect the wire harness, and reinstall the front fascia.

OEM 2008 Dodge Caliber HVAC Pressure Switch

Air Pressure Switch

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3 HVAC Pressure Switches found

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2008 Dodge Caliber Check Valve, Rear Part Number: 5003862AA
$4.62 MSRP: $6.95
You Save: $2.33 (34%)
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Product Specifications
- Other Name: Valve - A/C Line; High Side Adapter; Valve Core; Compressor Cut-Out; HVAC Switch; Trinary Switch; Pressure Switch; Fill Valve; Suction, Liquid, Discharge Line Valves; A/C Check Valve Core.
- Position: Rear
- Item Weight: 0.60 Pounds
- Item Dimensions: 0.8 x 0.5 x 0.4 inches
- Condition: New
- Fitment Type: Direct Replacement
- SKU: 5003862AA
- Warranty: This genuine part is guaranteed by Mopar's factory warranty.
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Fits the following 2008 Dodge Caliber Submodels:
- R/T, SE, SRT-4, SXT | 4 Cyl 1.8 L GAS, 4 Cyl 2.0 L GAS, 4 Cyl 2.4 L GAS
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2008 Dodge Caliber Check Valve Part Number: 5189373AA
$25.05 MSRP: $31.95
You Save: $6.90 (22%)
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Product Specifications
- Other Name: Valve - A/C Line; High & Low Side Charging Adapters; Service Valve Core.; Service Valve; Line Valve; Liquid Line Valve; Valve Core A/C Line
- Condition: New
- Fitment Type: Direct Replacement
- SKU: 5189373AA
- Warranty: This genuine part is guaranteed by Mopar's factory warranty.
Fits the following 2008 Dodge Caliber Submodels:
- R/T, SE, SRT-4, SXT | 4 Cyl 1.8 L GAS, 4 Cyl 2.0 L GAS, 4 Cyl 2.4 L GAS
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2008 Dodge Caliber Pressure Switch Part Number: 5174039AB
$118.97 MSRP: $175.00
You Save: $56.03 (33%)
Product Specifications
- Other Name: Valve - A/C Pressure Transducer; Refrigerant, HVAC, Compressor, Trinary Switches; Pressure Transducer; Includes O-Ring and Item #4; Discharge Line Valve.
- Replaces: 5175684AA, 5189363AA, 5096084AA, 5174039AA
- Item Weight: 0.40 Pounds
- Item Dimensions: 1.1 x 1.2 x 2.4 inches
- Condition: New
- Fitment Type: Direct Replacement
- SKU: 5174039AB
- Warranty: This genuine part is guaranteed by Mopar's factory warranty.
More Info
Fits the following 2008 Dodge Caliber Submodels:
- Express, Heat, Mainstreet, R/T, Rush, SE, SRT-4, SXT, Uptown | 4 Cyl 1.8 L GAS, 4 Cyl 2.0 L GAS, 4 Cyl 2.4 L GAS

2008 Dodge Caliber HVAC Pressure Switch Parts and Q&A

Q: How to Install an HVAC Pressure Switch on 2008 Dodge Caliber?
A: To install the Refrigerant Pressure Sensor/Switch, use the specified O-ring for R-134a and the correct refrigerant oil. Lubricate a new O-ring with clean refrigerant oil, install it on the A/C discharge line, secure the HVAC pressure switch, connect the wire harness, and reinstall the front fascia.