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Old 07-01-2013, 04:02 PM   #1
CurtZHP
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2001 ZX3 with NO A/C!

2001 ZX3 DOHC Zetec.

For well over a year now my air conditioning has not worked. When I hit the button, the light comes on, but I don't hear the compressor kick on. It's been my understanding that, the way this system is designed, if there is inadequate pressure in the system, the compressor WON'T come on in order to prevent it from getting burned up. Can anyone confirm this or tell me I'm out to lunch?

I'm assuming that's the case, and the system just needs a good recharge. I've seen the new cans of refrigerant at AutoZone; some even come with their own pressure gauge. I was tempted to try one, but I thought I'd check with the good folks here first.


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Old 07-01-2013, 06:03 PM   #2
CotyM
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Yeah it's either to high or to low, chances are that the system is to low and probably has a leak, if you try to charge it, make sure to add some refrigerant with UV dye that way you can use a black light to find what part is leaking. Then you can replace that part and have the system evacuated (draws moister from the system) and re-charged...

If you decide to take the stop leak rought, although not recommended, IDQ actually has cans of refrigerant that is supposed to remove moister from the lines. I don't know how; my guess is it uses a formula to turn the moister into stop leak... It's defenently worth trying if you take the stop leak rought...
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Old 07-01-2013, 06:04 PM   #3
MEJY1988
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You are correct, there is a pressure switch in the line that will not let the clutch energize if there is not enough pressure in the system. IIRC there is a How-To on this. Also DO NOT MIX REFRIGERANT TYPES; ie: R-12 AND R-134, THEY ARE NOT COMPATIBLE WITH EACH OTHER. Good Luck.
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Old 07-01-2013, 06:07 PM   #4
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^ You can't put R-12 in any US focus, iirc, 1992 was the last year R-12 was legal to be put on cars. If OP somehow manages to get a hold of R-12 it will cost him allot of money and he will quickly find that the can will not hook up to the focus.
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