Checking feon with a gage from a a/c kit

40

Asked by May 22, 2016 at 11:55 AM about the 2009 Ford Escape Limited V6 4WD

Question type: Maintenance & Repair

Can you get a reading correctly with the compressor not working   Because
the clutch doesn't engage   I put a gage on the line and said it was low but
the car was off

25 Answers

92,645

You must jumper the low pressure switch to start the system operating and then add gas to specs, then remove jumper and reconnect tie cycling switch and recheck operation, depending on out sides temp the text book reading should be 32 low side and 150 high side. HTH

40

Tennis shoe they tell me that it is not good the jump the pressure switch And the 09 has one pressure switch that I know of on top of the accummulator I'm lost because some say you can just add feon with compressor working when it get enough it will kick in, but how do I know how much is there before I start filling . Would like to know the amount that is there

40

Tennisshoe want to say in the one brfore ( compressor NOT working )! Sorry

92,645

What kind of charging system do you have?

40

I'm only using the ac pro can from auto zone " I had a different gage from a older unit attached to a the blue hose I put it to the charging side ,just the gage attached to the hose it read it was low , on the green side just a 1/4! Way Now the car was off because I figured the compressor wasn't engaging anyway so I just put it on valve

92,645

OK, so your doing a cold charge, so just hook up the can as it shows in the instructions start the engine and turn on the A/C switch, then pull the trigger or valve on the charging can and hold it on until the clutch engages, it may cycle a few times before it settles in and start staying on, watch the gauge on the can when it reaches 32 stop the flow and let the system stabilize, you still may need to add more until the gauge stays steady on 32. Sometimes it takes more than 1 can to refill a system, the way you are doing it is way expensive, that's why most guys either have a hot charging station or at least a good set of manifold gauges, when you can buy the small cans or even the big 30lb bottles keeps the cost down.

40

Well just went and filled it ,it showed I was at low side on the can I got the gage in the white is low so I fill to where it has to go to so it is at the right range but the compressor never turn on. So I am back to square one and it filled it fast so it must know have been that low I guess I will put a strand of copper wire on one side of the relay to check and see if relay is sending power to the compressor I hope I can find this problem

40

Should have knew that the feon was ok because the two fans would have spun if feon is two two low and hi also. It also spins both fans when the presser switch is no good ". But everything was ok till my fan went out and it was working off the high fan so when I saw that ac didn't work I thought that it was because car was working off the high fan and wouldn't let ac work. For a caution So when I replaced the dual fan the fans worked but the ac still didn't. Maybe there is something I need to change with the fans

92,645

The PCM controls the A/C, so if the 134 levels are good the switches are closed and the PCM takes over, so if the compressor is not running with the system full then one can only assume that a switch os bad or the PCM has shut down the A/C all together, either through a fault in the circuit or the actual PCM itself has been compromised. Have you tried pulling the codes? Possibly there is a stored memory code for something in the A/C circuit.

40

The code reader I got doesn't show those kind of codes think it show just for car running stuff Because I don't get nothing but a code for my gas filler neck So if it is the pcm I would have to replace a new computer I put this last year because of the coil wires didn't fire rit. Because of computer. Cost me 800 then 200 to flash it and ford got no warranty on comps u do yourself.

92,645

Then you may need to spend a few bucks and have the system checked out by a shop that has a live data scanner that can access the PCM, and sensor input readings.

40

If it is shutting down does that mean I wouldn't get a reading from the relay switch going to compressor were would it stop at. Do you know?

92,645

There would be no signal at the A/C clutch relay, on the coil side of the relay, not the power source side.

40

I think I have power going to the 2 on one side facing firewall one is when the relay was off Was going to put a copper strand on the other 2 legs of the relay plug it back in and see if the power crosses over Hey thanks for helping me out there mr shoes , really appreciate it

92,645

Only one of those is a ground the other is hot when the relay turns on.

40

Well I have power when I turn on car going on 3 legs of relay the other is ground I guess So power does go through the relay

92,645

Ok so the BCM has not shut out the A/C then you must have an open in the circuit it could be a pressure switch or a wiring problem.

40

If it was a pressure switch the 2 fans would run at same time . That's what happened last year and from what I see on a schamtic shows the relay would not got power. Is that right ? Going to post the drawing of diagram tomorrow

40

I don't have any power going to the the compressor plug but I got coming to and from relay .. Did notice something the power going into and out the relay is registering 14.v is that something to look at And this problem started when the dual fans when and the high fan was only one working when car would get hot to cool down. Is there something that works with that fan to let it know when to turn on and off , I keep wondering if the problem is got to do with the fans going out that time and I need to change something with it

92,645

Do you have that kind of voltage at the low pressure switch both I and out?

40

Ok the probe said I'm getting 5.0 and assume it was in and 0.9 going out the other is ground

92,645

That's too low, it should be battery voltage in and battery voltage out and to the compressor clutch.

40

Y is it I can not find a pressure switch on the other line. The only switch I see is on the accommulater. It is a 3 prong switch . That is it . Any schematic for a 09 mariner or a escape same car v6 nobody has or I can't find , this is nuts

40

Ok ,well finally got the Ac working. As for the power going to three wire pressure switch its a 5 volt switch so the 5.1 was good the relay is going to get the 14.5 going in when car is on that was ok . So was power. The problem was the freon , yes even though I was getting a reading that it was full. The hi side was he key for some reason the air was in the low side showing ok and the freon Liquid part was not enough on hi side was leaking out believing from the hi hose from compressor to condencer . Funny how you believe that the gage you get to fill up the system with , that come with he big can will not give you a accurate reading , you need to use for both sides . So after changing and hose and vacuuming system and refilling ,I got a smile on my face . Did cost me 290 though ,LOL .. Thank you Tennis shoe for your help and support ..

92,645

Yeah, that is why you need a manifold set of gauges, those refil cans they sell I think cause more problems than they fix, you really need that high side reading. Glad you got it fixed.

Your Answer

Add photo

Related Questions

  • 2010 FORD ESCAPE FANS RUNNING CONSTANTLY 200 answers

    I have a 2010 Ford Escape. Recently the Air Conditioning control went out and would not work on setting 1. At the same time the 2 radiator fans under the hood started running constantly and very loud....

    2010 Ford Escape XLT

    -

    Maintenance & Repair

  • Fuses 9 answers

    I need to know what fuse goes to which part of the car I'm trying to check the battery or ignition fuse

    2005 Ford Escape

    -

    Maintenance & Repair

  • Blown EGR valve in 2002 Ford Escape V6. Doesn't appear to be a clogged catalytic converter 17 answers

    Keep blowing out The EGR valve in my 2002 Ford Escape V6. I let the car run in the driveway for about 15 minutes and checked the catalytic converter to see if it was glowing red hot. It was not. Any...

    2002 Ford Escape XLS

    -

    Maintenance & Repair

  • Adding Freon 1 answer

    I have a 2005 Ford Escape V6. Can I add Freon myself using one of the simple kits at auto stores or do I need to have it done at the dealer?

    2005 Ford Escape XLT

    -

    Maintenance & Repair

  • Where to get a carb rebuild kit? 4 answers

    I'm having trouble finding where to get a carb rebuild kit. Engine is a 3.8L v6.

    1983 Ford LTD

    -

    Maintenance & Repair

Escape

Looking for a Used Escape in your area?

CarGurus has 93,891 nationwide Escape listings starting at $900.

ZIP:

Search Ford Escape Questions

Ford Escape Experts

#1 Tom Demyan
Tom Demyan
Reputation 5,060
#2 Bratts
Bratts
Reputation 2,850
#3 kbro
kbro
Reputation 1,600
View All

Related Models For Sale

Used Ford Edge
678 Great Deals out of 50,642 listings starting at $1,500
Used Ford Explorer
948 Great Deals out of 72,548 listings starting at $1,499
Used Honda CR-V
867 Great Deals out of 60,603 listings starting at $988
Used Toyota RAV4
731 Great Deals out of 71,362 listings starting at $1,895
Used Chevrolet Equinox
1,065 Great Deals out of 71,177 listings starting at $1,500
Used Ford Fusion
1,106 Great Deals out of 83,160 listings starting at $998
Used Nissan Rogue
536 Great Deals out of 74,894 listings starting at $3,874
Used Jeep Grand Cherokee
1,040 Great Deals out of 74,668 listings starting at $750
Used Ford Focus
544 Great Deals out of 57,040 listings starting at $1,095
Used Ford F-150
2,178 Great Deals out of 206,277 listings starting at $1,499
Used Jeep Liberty
237 Great Deals out of 7,265 listings starting at $995
Used Hyundai Santa Fe
289 Great Deals out of 20,072 listings starting at $2,275
Used Hyundai Tucson
199 Great Deals out of 29,383 listings starting at $1,799

Used Cars For Sale

2017 Ford Escape For Sale
144 Great Deals out of 57,371 listings starting at $14,367
2016 Ford Escape For Sale
192 Great Deals out of 4,711 listings starting at $12,895
2015 Ford Escape For Sale
238 Great Deals out of 5,749 listings starting at $9,950
2014 Ford Escape For Sale
378 Great Deals out of 11,378 listings starting at $7,495
2013 Ford Escape For Sale
139 Great Deals out of 4,368 listings starting at $6,995

Content submitted by Users is not endorsed by CarGurus, does not express the opinions of CarGurus, and should not be considered reviewed, screened, or approved by CarGurus. Please refer to CarGurus Terms of Use.