How to remove and replace the A/C Compressor on the Mercury Grand Marquis?

Special spring lock coupling tools are required to release the connectors used on the refrigerant lines throughout the air conditioning system. There are different tools for each line size. These tools can usually be found at local auto parts stores. Many times the necessary coupling tool may be included in the kit used for parts replacement. To remove the compressor, first have the system discharged by a dealer service department or an automotive air conditioning repair facility. Then, remove the accessory drive belt(s). Remove the refrigerant line fitting block (coupled hose assembly) connected to the rear of the compressor. Disconnect the electrical connection at the compressor clutch. Remove the compressor mounting bolts. Remove the compressor from the mounting location. Drain and measure the refrigerant oil from the compressor. If the compressor is being replaced, add the appropriate amount of refrigerant oil to maintain the correct level. Add refrigerant oil to the component being replaced based on the following guidelines: If the amount removed was between three and five ounces, add the same amount of clean refrigerant oil to the new compressor. If the amount of oil removed was greater than five ounces, add only five ounces to the component before installation. If the amount of oil removed was less than three ounces, add three ounces to the component before reinstallation. This will maintain the correct oil level in the system after the repairs are completed. When replacing the compressor, transfer the clutch assembly to the new compressor. A universal spanner wrench, snap ring pliers, and a two jaw puller will be needed to remove the clutch from the old compressor. The compressor shaft seal should also be replaced at this time. Installation procedures are the reverse of those for removal. When installing the fitting block, use new O-rings and lubricate them with clean refrigerant oil. After the compressor is installed, have the system evacuated, recharged, and leak tested by a dealer service department or an air conditioning repair facility.

Genuine Mercury Grand Marquis A/C Compressor

Air Conditioning Compressor

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8 A/C Compressors found

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Mercury Grand Marquis Compressor Assembly
Part Number: AU2Z-19V703-AC
$335.07 MSRP: $547.27
You Save: $212.20 (39%)
Ships in 1-2 Business Days
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Product Specifications
- Other Name: Compressor Assy
- Replaced by: 9L2Z-19V703-E
- Warranty: This genuine part is guaranteed by Ford's factory warranty.
Fits the following Vehicles:
- 2007-2011 Mercury Grand Marquis | 8 Cyl 4.6L Romeo SOHC EFI | 4-Speed Automatic Transmission 4R75E Livonia, Left Hand Drive, Rear-Wheel Drive (Left Hand Drive)
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Mercury Grand Marquis Compressor Assembly
Part Number: 4L3Z-19V703-AA
$381.83 MSRP: $623.64
You Save: $241.81 (39%)
Ships in 1-2 Business Days
ADD TO CART
Product Specifications
- Other Name: Compressor Assy
- Replaced by: HU2Z-19703-Q
- Warranty: This genuine part is guaranteed by Ford's factory warranty.
Fits the following Vehicles:
- 1996-2003 Mercury Grand Marquis | 8 Cyl 4.6L | 4AT 4R70W
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Mercury Grand Marquis Compressor Assembly
Part Number: 8L2Z-19703-C
Product Specifications
- Other Name: Compressor Assy; Compressor
- Replaces: 6L2Z-19703-GB, 6L2Z-19703-GA
- Warranty: This genuine part is guaranteed by Ford's factory warranty.
Fits the following Vehicles:
- 2006-2011 Mercury Grand Marquis | 8 Cyl 4.6L, 8 Cyl 4.6L Romeo SOHC EFI | 4-Speed Automatic Transmission 4R75E Livonia, 4AT 4R70W, Left Hand Drive, Rear-Wheel Drive (Left Hand Drive)
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Mercury Grand Marquis Compressor Assembly
Part Number: 5W1Z-19V703-AA
Product Specifications
- Other Name: Compressor Assy; Compressor
- Replaces: 1L2Z-19703-DA, 2C2Z-19V703-BC, 2C2Z-19V703-BB, 3L2Z-19V703-AB, 1L2Z-19703-AA, 3L2Z-19V703-AC, 3L2Z-19V703-AA, YCC-222, 2C2Z-19V703-BA, YCC-168, YC-2510, YC-2493, YCC-234
- Warranty: This genuine part is guaranteed by Ford's factory warranty.
Fits the following Vehicles:
- 2003-2005 Mercury Grand Marquis | 8 Cyl 4.6L | 4AT 4R70W
View related parts
Mercury Grand Marquis Compressor Assembly
Part Number: 1L2Z-19703-DA
Product Specifications
- Other Name: Compressor Assy
- Replaced by: 5W1Z-19V703-AA
- Warranty: This genuine part is guaranteed by Ford's factory warranty.
Fits the following Vehicles:
- 2003-2005 Mercury Grand Marquis | 8 Cyl 4.6L | 4AT 4R70W
View related parts
Mercury Grand Marquis Compressor Assembly
Part Number: 6L2Z-19703-GB
Product Specifications
- Other Name: Compressor Assy
- Replaced by: 8L2Z-19703-C
- Warranty: This genuine part is guaranteed by Ford's factory warranty.
Fits the following Vehicles:
- 2006-2007 Mercury Grand Marquis | 8 Cyl 4.6L, 8 Cyl 4.6L Romeo SOHC EFI | 4AT 4R70W, 4-Speed Automatic Transmission 4R75E Livonia, Left Hand Drive, Rear-Wheel Drive (Left Hand Drive)
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Mercury Grand Marquis Compressor Assembly
Part Number: 5U2Z-19V703-DA
Product Specifications
- Other Name: Compressor Assy
- Manufacturer Note: New Loaded Compressor Assembly. Includes Clutch (19D786), Coil (19D798), Pulley (19D784) And Oil
- Warranty: This genuine part is guaranteed by Ford's factory warranty.
Fits the following Vehicles:
- 1992 Mercury Grand Marquis | 8 Cyl 4.6L | 4AT, 4AT AOD, 4AT AODE
View related parts
Mercury Grand Marquis Compressor Assembly
Part Number: 1L2Z-19703-AA
Product Specifications
- Other Name: Compressor Assy
- Replaced by: 5W1Z-19V703-AA
- Warranty: This genuine part is guaranteed by Ford's factory warranty.
Fits the following Vehicles:
- 2003 Mercury Grand Marquis | 8 Cyl 4.6L | 4AT 4R70W

Mercury Grand Marquis A/C Compressor

The A/C Compressor in the Mercury Grand Marquis is the part of the sedan that pumps refrigerant to ensure the cabin is cool on hot days. The A/C Compressor compresses low-pressure vapor into a hot high-pressure state, thereby forcing heat externally. The hot gas then flows towards the condenser, where it loses heat, becomes cooler, and finally flows through the evaporator, allowing cool air back inside. The majority of the Mercury models built before the early nineties applied R12 refrigerant setups during the long run, while later Grand Marquis cars switched to R134a. Each change required a compatible A/C Compressor since the oils and internal seals differ. Regardless of that separation, all Grand Marquis designs utilize an identical fundamental piston-driven device that cycles gas to liquid and back again to restart that cycle the instant the cabin requires cooler temperatures. If the A/C Compressor fails, the interior of the Mercury Grand Marquis gets stuffy. Thus, matching the type of refrigerant and a correct fit remain essential for one looking for reliable cooling. The Mercury A/C Compressor is humming because of routine attention.

We provide a wide range of Mercury Grand Marquis A/C Compressor at the optimal prices. If you need Mercury Grand Marquis A/C Compressor, you can shop with confidence on our website. All our OEM parts come with a manufacturer's warranty and are delivered to your doorstep with a fast delivery service.

Mercury Grand Marquis A/C Compressor Parts Questions & Experts Answers

Compressor Assembly
5W1Z-19V703-AA
Q: How to remove and replace the A/C Compressor on the Mercury Grand Marquis?
A:
Special spring lock coupling tools are required to release the connectors used on the refrigerant lines throughout the air conditioning system. There are different tools for each line size. These tools can usually be found at local auto parts stores. Many times the necessary coupling tool may be included in the kit used for parts replacement. To remove the compressor, first have the system discharged by a dealer service department or an automotive air conditioning repair facility. Then, remove the accessory drive belt(s). Remove the refrigerant line fitting block (coupled hose assembly) connected to the rear of the compressor. Disconnect the electrical connection at the compressor clutch. Remove the compressor mounting bolts. Remove the compressor from the mounting location. Drain and measure the refrigerant oil from the compressor. If the compressor is being replaced, add the appropriate amount of refrigerant oil to maintain the correct level. Add refrigerant oil to the component being replaced based on the following guidelines: If the amount removed was between three and five ounces, add the same amount of clean refrigerant oil to the new compressor. If the amount of oil removed was greater than five ounces, add only five ounces to the component before installation. If the amount of oil removed was less than three ounces, add three ounces to the component before reinstallation. This will maintain the correct oil level in the system after the repairs are completed. When replacing the compressor, transfer the clutch assembly to the new compressor. A universal spanner wrench, snap ring pliers, and a two jaw puller will be needed to remove the clutch from the old compressor. The compressor shaft seal should also be replaced at this time. Installation procedures are the reverse of those for removal. When installing the fitting block, use new O-rings and lubricate them with clean refrigerant oil. After the compressor is installed, have the system evacuated, recharged, and leak tested by a dealer service department or an air conditioning repair facility.

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