Where is the high pressure switch on a Ford Focus?
Where is the high pressure switch on a Ford Focus?
When you turn on your AC, it sends power through the low and high pressure switches on the AC hoses and then to the AC relay in the box under the hood. You can test these switches using an electrical continuity tester. The high pressure switch can be tested regardless of the system being charged.
Is there a problem with my Ford Focus AC?
While the chances are low that there will be a problem- it’s certainly not worth taking the risk. EPA Information: This information is for people who have leaks in automotive AC’s which are draining their refrigerant. Continually adding refrigerant to a leaky system can harm the environment.
What to do about a condenser leak in a Ford Focus?
Condenser leaks are more common than these due to flying debris from the road. Usually you’ll be able to hear these leaks when adding refrigerant to the system. All you can do is replace the condenser. Dyes are most efficient at locating leaks around hose fittings and connections.
Where is the refrigerant located on a Ford Focus?
For earlier Foci, please check your owner’s manual for fuses, and look for a sticker on the radiator cover giving the oil and refrigerant capacity until we get those listed here. Starting at the compressor, refrigerant is pumped to the condenser, located in front of the radiator, where it is cooled.
When you turn on your AC, it sends power through the low and high pressure switches on the AC hoses and then to the AC relay in the box under the hood. You can test these switches using an electrical continuity tester. The high pressure switch can be tested regardless of the system being charged.
What should I test for a relay problem?
These accessories can range from the main computer PCM (powertrian control module), radiator fan, fuel pump, door locks etc. There are two tests that should be considered when dealing with a relay problem, is the problem with the relay itself or is the problem a power or ground issue.
What are the symptoms of a bad ECM power relay?
A bad relay may cause the vehicle to crank, but not start, or sometimes not even crank at all. 3. Battery drain or dead battery. A failed ECM power relay can also cause a battery drain or dead battery. If the relay shorts it can leave power on to the computer, even when the vehicle is turned off.
What do the ratings on a relay mean?
Relays often have two ratings: AC and DC. These rating indicate how much power can be switched through the relays. This does not necessarily tell you what the limits of the relay are.
Where does the power come from on a Ford EEC relay?
This voltage comes from the ignition switch. Power (in the form of 10 to 12 Volts) is always present in circuit 4 . This voltage comes directly from the battery positive terminal across a fusible link on the starter motor solenoid (on the fender). Ground is always present on circuit 1.
What is the low current circuit on a Ford EEC?
Every Ford EEC Power Relay has two basic circuits and for the purpose of our discussion, we’ll call them: A low current circuit. This circuit can be identified by the wires labeled with the numbers 1 and 2. The low current circuit is the control circuit that ‘closes’ or ‘opens’ the high current circuit.
What’s the color of the EEC power relay?
The EEC Power Relay is easy to recognize because it’s usually a brown color. If the EEC Power Relay has already been replaced, you can still recognize it by its brown colored connector. In this ‘How To Test’ article, I’ll show you how to test it on your Ford car or pickup in a step-by-step manner.
These accessories can range from the main computer PCM (powertrian control module), radiator fan, fuel pump, door locks etc. There are two tests that should be considered when dealing with a relay problem, is the problem with the relay itself or is the problem a power or ground issue.
Condenser leaks are more common than these due to flying debris from the road. Usually you’ll be able to hear these leaks when adding refrigerant to the system. All you can do is replace the condenser. Dyes are most efficient at locating leaks around hose fittings and connections.
While the chances are low that there will be a problem- it’s certainly not worth taking the risk. EPA Information: This information is for people who have leaks in automotive AC’s which are draining their refrigerant. Continually adding refrigerant to a leaky system can harm the environment.
For earlier Foci, please check your owner’s manual for fuses, and look for a sticker on the radiator cover giving the oil and refrigerant capacity until we get those listed here. Starting at the compressor, refrigerant is pumped to the condenser, located in front of the radiator, where it is cooled.
How to add Freon to a 2004 Ford Focus?
How to add freon to your 2004 Ford Focus: hook up the can of refrigerant (likely r-134a) to the low pressure port. When your compressor kicks on, add freon to the correct pressure. In addition to cooling, freon lubricates the compressor when it runs. Advance Auto coupon for 20% off entire order: KIOSK20 Author
What to do if your Ford Focus has a leak?
When the air conditioner in your 2004 Ford Focus starts blowing hot air, you likely have a freon leak. Recharging the freon in your AC system is an inexpensive and easy first step to restoring the cooling capacity of your A/C system. Most refrigerants include a leak sealer that will seal small leaks in addition to filling the R134a refrigerant.
Why does my Ford Focus air conditioner keep blowing hot air?
Video Description When the air conditioner in your 2004 Ford Focus starts blowing hot air, you likely have a freon leak. Recharging the freon in your AC system is an inexpensive and easy first step to restoring the cooling capacity of your A/C system.
What’s the best way to repair a Ford Focus?
The best way to fix a leak is to locate it and repair the system. You can purchase leak finder, and even install cans of R134 with leak finder in the can. This is a dye which circulates in the system and is visible under UV light while wearing specially tinted goggles. Kits are readily available.
Where is the electric clutch on a Ford Focus?
You can skip the electrical troubleshooting section since you know your problem is due to a leak. The compressor is engaged by an electric clutch located on the front of the compressor. If you can watch it while the engine is idling, when the compressor cycles you’ll see the outside of the pulley start turning when the clutch is engaged.
How to know if your Ford Focus has a blown fuse?
If you can watch it while the engine is idling, when the compressor cycles you’ll see the outside of the pulley start turning when the clutch is engaged. First, check the AC fuse to make sure it’s not blown.
Where is the orifice tube in a SPI engine?
I own a 2001 FF LX SOHC SPI engine. I successfully changed the A/C hose, accumulator and compressor but I have problems finding the orifice tube. I know it’s located in the line between the condenser and the evaporator.
What do you need to remove the orifice tube?
You’ll need a small pair of needle nose pliers or a specialized orifice tube removal tool. Twist first to loosen it, then twist and pull to remove. The orifice tube is about 3 inches long. You’ll need a new O-ring for the seal on that coupling as well.
Where in the world is the orifice tube?
Ok, for the record, if your Focus is anything like mine, that is the most retarded place to put an orifice tube that I’ve seen so far in my automotive repair adventures. They could’ve put it under the passenger fender where the accumulator is, but no- it’s over near the firewall.
You can skip the electrical troubleshooting section since you know your problem is due to a leak. The compressor is engaged by an electric clutch located on the front of the compressor. If you can watch it while the engine is idling, when the compressor cycles you’ll see the outside of the pulley start turning when the clutch is engaged.
