What is the purpose of the pressure cycling switch in the air conditioning system on Lincoln MKX?

The pressure cycling switch is located on top of the hard line from the condenser to the air conditioning thermostatic expansion valve (TXV). It detects low refrigerant line pressure and switches the A/C system off, then back on again to provide higher pressure. If the pressure increases too high, the pressure cut-off switch shuts the system off. Before proceeding, have the air conditioning system recovered by a dealer service department or automotive air conditioning shop. Unplug the electrical connector from the pressure cycling switch and unscrew it. Lubricate the switch O-ring with clean refrigerant oil and screw the new switch into place. Reconnect the electrical connector and have the system evacuated, recharged, and leak tested by the shop that discharged it.

Genuine Lincoln MKX HVAC Pressure Switch

Air Pressure Switch

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9 HVAC Pressure Switches found

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Lincoln MKX Switch - Air Condition System - Vacuum
Part Number: 6F9Z-19D594-AA
$86.94 MSRP: $153.09
You Save: $66.15 (44%)
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Product Specifications
- Replaces: F6CZ-19D594-CB, 6L2Z-19D594-BA
- Warranty: This genuine part is guaranteed by Ford's factory warranty.
Fits the following Vehicles:
- 2007-2010 Lincoln MKX | 6 Cyl 3.5L DOHC VCT SMPI | 6-Speed Automatic Transmission 6F Mid-Range, 6-Speed Automatic Transmission 6F50, Four-Wheel Drive (Full Time) (Left Hand Drive), Four-Wheel Drive (Part Time) (Left Hand Drive), Front-Wheel Drive (Left Hand Drive), Left Hand Drive
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Lincoln MKX Switch - Air Condit.System - Vacuum
Part Number: BT4Z-19D594-A
$60.28 MSRP: $99.64
You Save: $39.36 (40%)
Ships in 1 Business Day
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Product Specifications
- Replaced by: HG1Z-19D594-A
- Warranty: This genuine part is guaranteed by Ford's factory warranty.
Fits the following Vehicles:
- 2011-2018 Lincoln MKX | 4 Cyl 2.0L EcoBoost (240PS) , 6 Cyl 2.7L, 6 Cyl 3.5L DOHC VCT SMPI, 6 Cyl 3.7L DOHC | 6-Speed Automatic Transmission 6F Mid-Range, 6-Speed Automatic Transmission 6F50, 6-Speed Automatic Transmission 6F55, 8-Speed Automatic Transmission 8F35, 8-Speed Automatic Transmission 8F57, Four-Wheel Drive (Full Time) (Left Hand Drive), Four-Wheel Drive (Part Time) (Left Hand Drive), Front-Wheel Drive (Left Hand Drive), Left Hand Drive
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Lincoln MKX Valve Assembly
Part Number: 4L3Z-19D701-A
$6.39 MSRP: $9.93
You Save: $3.54 (36%)
Ships in 1 Business Day
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Product Specifications
- Other Name: Valve Assy
- Replaces: 4R3Z-19D701-AA, F8RZ-19D701-AA
- Warranty: This genuine part is guaranteed by Ford's factory warranty.
Fits the following Vehicles:
- 2007-2015 Lincoln MKX | 4 Cyl 2.0L EcoBoost (240PS) , 6 Cyl 3.5L DOHC VCT SMPI, 6 Cyl 3.7L DOHC | 6-Speed Automatic Transmission 6F Mid-Range, 6-Speed Automatic Transmission 6F50, Four-Wheel Drive (Full Time) (Left Hand Drive), Four-Wheel Drive (Part Time) (Left Hand Drive), Front-Wheel Drive (Left Hand Drive), Left Hand Drive
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Lincoln MKX Valve Assembly
Part Number: F7RZ-19D701-BA
$5.02 MSRP: $7.80
You Save: $2.78 (36%)
Ships in 1-2 Business Days
ADD TO CART
Product Specifications
- Other Name: Valve Assy
- Warranty: This genuine part is guaranteed by Ford's factory warranty.
Fits the following Vehicles:
- 2007-2015 Lincoln MKX | 4 Cyl 2.0L EcoBoost (240PS) , 6 Cyl 3.5L DOHC VCT SMPI, 6 Cyl 3.7L DOHC | 6-Speed Automatic Transmission 6F Mid-Range, 6-Speed Automatic Transmission 6F50, Four-Wheel Drive (Full Time) (Left Hand Drive), Four-Wheel Drive (Part Time) (Left Hand Drive), Front-Wheel Drive (Left Hand Drive), Left Hand Drive
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Lincoln MKX Valve Assembly
Part Number: DS7Z-19D701-A
$4.68 MSRP: $7.27
You Save: $2.59 (36%)
Ships in 1-2 Business Days
ADD TO CART
Product Specifications
- Other Name: Valve Assy
- Warranty: This genuine part is guaranteed by Ford's factory warranty.
Fits the following Vehicles:
- 2016-2018 Lincoln MKX | 4 Cyl 2.0L EcoBoost (240PS) , 6 Cyl 2.7L, 6 Cyl 3.7L DOHC | 6-Speed Automatic Transmission 6F Mid-Range, 6-Speed Automatic Transmission 6F50, 6-Speed Automatic Transmission 6F55, 8-Speed Automatic Transmission 8F35, 8-Speed Automatic Transmission 8F57, Four-Wheel Drive (Full Time) (Left Hand Drive), Front-Wheel Drive (Left Hand Drive), Left Hand Drive
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Lincoln MKX Valve Assembly
Part Number: E69Z-19D701-A
$4.68 MSRP: $7.27
You Save: $2.59 (36%)
Ships in 1 Business Day
ADD TO CART
Product Specifications
- Other Name: Valve Assy
- Warranty: This genuine part is guaranteed by Ford's factory warranty.
Fits the following Vehicles:
- 2007-2015 Lincoln MKX | 4 Cyl 2.0L EcoBoost (240PS) , 6 Cyl 3.5L DOHC VCT SMPI, 6 Cyl 3.7L DOHC | 6-Speed Automatic Transmission 6F Mid-Range, 6-Speed Automatic Transmission 6F50, Four-Wheel Drive (Full Time) (Left Hand Drive), Four-Wheel Drive (Part Time) (Left Hand Drive), Front-Wheel Drive (Left Hand Drive), Left Hand Drive
View related parts
Lincoln MKX Valve Assembly
Part Number: 6L1Z-19D701-C
$4.68 MSRP: $7.27
You Save: $2.59 (36%)
Ships in 1-2 Business Days
ADD TO CART
Product Specifications
- Other Name: Valve Assy
- Warranty: This genuine part is guaranteed by Ford's factory warranty.
Fits the following Vehicles:
- 2016-2018 Lincoln MKX | 4 Cyl 2.0L EcoBoost (240PS) , 6 Cyl 2.7L, 6 Cyl 3.7L DOHC | 6-Speed Automatic Transmission 6F Mid-Range, 6-Speed Automatic Transmission 6F50, 6-Speed Automatic Transmission 6F55, 8-Speed Automatic Transmission 8F35, 8-Speed Automatic Transmission 8F57, Four-Wheel Drive (Full Time) (Left Hand Drive), Front-Wheel Drive (Left Hand Drive), Left Hand Drive
View related parts
Lincoln MKX Switch - Air Condit.System - Vacuum
Part Number: 6L2Z-19D594-BA
$92.62 MSRP: $153.09
You Save: $60.47 (40%)
Ships in 1 Business Day
ADD TO CART
Product Specifications
- Replaced by: 6F9Z-19D594-AA
- Warranty: This genuine part is guaranteed by Ford's factory warranty.
Fits the following Vehicles:
- 2007 Lincoln MKX | 6 Cyl 3.5L DOHC VCT SMPI | 6-Speed Automatic Transmission 6F Mid-Range, 6-Speed Automatic Transmission 6F50, Four-Wheel Drive (Full Time) (Left Hand Drive), Four-Wheel Drive (Part Time) (Left Hand Drive), Front-Wheel Drive (Left Hand Drive), Left Hand Drive
View related parts
Lincoln MKX Valve Assembly
Part Number: 6L1Z-19D701-B
$11.41 MSRP: $17.73
You Save: $6.32 (36%)
Ships in 1 Business Day
ADD TO CART
Product Specifications
- Other Name: Valve Assy
- Warranty: This genuine part is guaranteed by Ford's factory warranty.
Fits the following Vehicles:
- 2016-2018 Lincoln MKX | 4 Cyl 2.0L EcoBoost (240PS) , 6 Cyl 2.7L, 6 Cyl 3.7L DOHC | 6-Speed Automatic Transmission 6F Mid-Range, 6-Speed Automatic Transmission 6F50, 6-Speed Automatic Transmission 6F55, 8-Speed Automatic Transmission 8F35, 8-Speed Automatic Transmission 8F57, Four-Wheel Drive (Full Time) (Left Hand Drive), Front-Wheel Drive (Left Hand Drive), Left Hand Drive

Lincoln MKX HVAC Pressure Switch Parts Questions & Experts Answers

Switch - Air Condit.System - Vacuum
BT4Z-19D594-A
Q: What is the purpose of the pressure cycling switch in the air conditioning system on Lincoln MKX?
A: The pressure cycling switch is located on top of the hard line from the condenser to the air conditioning thermostatic expansion valve (TXV). It detects low refrigerant line pressure and switches the A/C system off, then back on again to provide higher pressure. If the pressure increases too high, the pressure cut-off switch shuts the system off. Before proceeding, have the air conditioning system recovered by a dealer service department or automotive air conditioning shop. Unplug the electrical connector from the pressure cycling switch and unscrew it. Lubricate the switch O-ring with clean refrigerant oil and screw the new switch into place. Reconnect the electrical connector and have the system evacuated, recharged, and leak tested by the shop that discharged it.