Recharging Your 2007 Ford Expedition AC: A Step-by-Step Guide

The 2007 Ford Expedition requires a recharge of its air conditioning system.

2007 Ford Expedition Ac Recharge

The 2007 Ford Expedition is a powerful, reliable and luxurious SUV. To keep it running in peak condition, it is important to periodically recharge the vehicle’s air conditioning system. This process involves replenishing the fluids and oils lost through wear and tear, as well as properly charging the refrigerant. A properly charged and lubricated AC system can extend the life of your Expedition and make your ride more comfortable. Recharging your AC system on a regular basis can help you save money in the long run by avoiding costly repairs down the road.

Replacing Refrigerant

When recharging the air conditioning system in a 2007 Ford Expedition, it is important to replace the refrigerant. This should be done with extreme caution as it can be hazardous to handle. It is important to wear safety glasses and gloves when handling refrigerant. The first step is to locate the low side service port and attach the charging hose with the correct adapter. Once connected, open the valve on the canister of refrigerant and allow it to flow into the system until it reaches its proper level. The system will need to be evacuated using a vacuum pump or other suitable device before recharging can begin.

Adding Leak Prevention

Once the refrigerant has been replaced, it is important to add leak prevention fluid to help seal any existing leaks in the system and help prevent future leaks from occurring. There are several different types of leak prevention fluids available on the market today, so it is important to choose one that is compatible with your vehicle’s air conditioning system. The leak prevention fluid should be added directly into the service port after ensuring that no pressure remains in the system.

Checking Compressor Clutch Operation

After filling and sealing the A/C system, you must check that the compressor clutch is operating correctly. This involves testing both voltage supply and clutch relay signals. To test voltage supply, you should connect a voltmeter between ground and either terminal of compressor clutch connector while running engine at idle speed. If voltage reading is between 8-17 volts then clutch operation is correct; if not, there may be an obstruction or short in wiring harness causing incorrect voltage reading. To test clutch relay signals, you should use an oscilloscope or multimeter set on AC voltage measurement mode between ground and either terminal of compressor clutch connector while running engine at idle speed; if output signal reads between 0-10 volts then clutch operation is correct; if not, there may be an issue with compressor clutch relay or wiring harness causing incorrect signal output reading.

Checking Compressor Pressure Levels

The last step for recharging a 2007 Ford Expedition’s air conditioning system involves checking compressor pressure levels using a manifold gauge set connected to both low side and high side service ports on A/C system lines. To measure low side pressure, connect manifold gauge set’s low side hose to vehicle’s low side service port while running engine at idle speed; pressure should read between 20-35 psi (pounds per square inch). To measure high side pressure, connect manifold gauge set’s high side hose to vehicle’s high side service port while running engine at idle speed; pressure should read around 150 psi (pounds per square inch). If pressures do not fall within these ranges then there may be an obstruction or leak present in A/C lines that needs further investigation before proceeding with recharge procedure.

Cleaning the A/C Evaporator and Condenser Cores

One of the most important tasks when performing an A/C recharge on a 2007 Ford Expedition is to clean the evaporator and condenser cores. This helps to ensure that the air conditioning system is working efficiently and prevents future problems. There are two ways to clean the cores: manual cleaning and chemical cleaning.

Manual Cleaning Instructions

The first step in manual cleaning is to shut off the power to the unit and remove any debris from around it. Next, remove the fan shroud or cover, if necessary, and then locate the evaporator and condenser cores. Use a vacuum cleaner with a soft brush attachment to gently clean away any dirt or debris from both cores. Once they are clean, replace any covers that were removed during the process.

Chemical Cleaning Process

For heavily soiled evaporator and condenser coils, chemical cleaning may be necessary. Start by turning off power to the unit and removing any debris from around it. Next, locate the evaporator and condenser coils and spray them with a degreasing agent specifically designed for air conditioners. Allow it to sit for several minutes before scrubbing away any remaining dirt or grime with a soft brush. Rinse both coils thoroughly with water before replacing any covers that were removed during this process.

Inspecting Components for Freon Leaks

In addition to cleaning the evaporator and condenser cores, it is important to inspect all components of your 2007 Ford Expedition’s air conditioning system for Freon leaks. The two most common methods of detecting Freon leaks are using an electronic detection system or making visual inspections.

Using Electronic Detection System

When using an electronic detection system, start by turning off power to the unit and removing any debris from around it. Next, attach one end of an electronic leak detector probe directly onto one of your 2007 Ford Expedition’s Freon hoses or valves in order to detect any leaks in these areas. If no leaks are detected, repeat this process on other components of your air conditioning system until all hoses have been checked for leaks.

Making Visual Inspections

Making visual inspections of your 2007 Ford Expedition’s air conditioning system can also be done in order to detect Freon leaks that may not be detected electronically. Start by turning off power to the unit and removing any debris from around it. Then look for signs of oil residue or discoloration on all hoses or valves which could indicate a leak in these areas; if you find any evidence of leakage you should have it fixed as soon as possible in order to prevent further damage from occurring within your air conditioning system.

Recharging Refrigerant Levels

Once all necessary repairs have been made, it is time to recharge refrigerant levels within your 2007 Ford Expedition’s air conditioning system in order for it to function properly once again. To do this, start by refilling with factory specified amount of refrigerant; this information can typically be found within your vehicle’s owner’s manual or service manual but can also be obtained from automotive repair shops who specialize in working on air conditioners systems like yours. After filling with refrigerant, use testing gauges in order to verify that levels are correct; if they are not correct then adjust accordingly before re-checking until desired levels have been achieved.

FAQ & Answers

Q: What tools are required for an AC recharge on a 2007 Ford Expedition?
A: A set of service gauges, a vacuum pump, and either R134a refrigerant or oil and dye combination.

Q: What are the steps for replacing refrigerant?
A: The steps for replacing the refrigerant include disconnecting the negative battery cable, connecting the service gauges to the low and high pressure ports, evacuating the system with a vacuum pump, adding refrigerant if necessary and checking for leaks with an electronic leak detector.

Q: What safety guidelines should be followed when handling refrigerant?
A: When handling refrigerant, always wear safety glasses and gloves to protect your eyes and skin from exposure. Be sure to use a certified recovery tank when transferring or disposing of used refrigerant. Also be sure to follow all local laws and regulations regarding safe disposal of used refrigerant.

Q: How is leak prevention added to an AC system?
A: Leak prevention can be added by injecting a leak prevention fluid into the AC system through the low side port. Common types of leak prevention fluids include fluorescent dye, oil-based sealers and evaporator sealers.

Q: How can I check if my compressor clutch is operating correctly?
A: To check if your compressor clutch is operating correctly, you need to test the voltage supply to make sure it is within manufacturer specifications. Then you can check for proper operation by verifying that the clutch relay signals are being sent as expected.

The 2007 Ford Expedition requires an AC recharge if the AC system is not cooling properly. It is a relatively straightforward procedure and can be done with the use of a refrigerant recharge kit and a few basic tools. However, it is important to make sure that the proper amount of refrigerant is added and that all safety precautions are followed to avoid potential injury or damage.