Explorer AC charge?

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May 5, 2004 | 09:48 AM

#16

jscozz

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OK.. SUCCESS!!!

Interesting though... I junpered the compressor contacts to keep it running, shook the can frequently, ran AC full, revved the engine... but no luck until I turned the can upside down! Immediately the brass fitting on the fill hose got cold, the pipe into the canister got cold with condensation on it, the air in the car is blowing cold, and the can emptied.

Also interesting, is that the pressure before the fill varied from 44 to 24 with the compressor cyclying... the compressor was cyclying 14 off, 4 on, and is now much more regular with 14 on and 14 off. But the pressure still dips to around 25/26 with the compressor on. Since the air is cold I am content... but should I think about putting in another can?

Jeff

May 5, 2004 | 11:02 PM

#17

dsmith1484

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From: USA

I am going to attempt this with my 94 soon and my only comment would be to see what the capacity of the system is. I have herd that over filling is a bad thing.

Dean

May 6, 2004 | 12:03 AM

#18

c96drumm

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From: Colorado, U.S.A!

If it's blowing cold enough, I'd leave it alone. Knowing the system capacity wouldn't be of much help unless you're filling it from empty. Dean's right, overfilling is bad.

May 7, 2004 | 12:41 PM

#19

TomCarperNGiles

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From: Cleveland, TN area.

Just for information: 1996 explorer
1.63 lb.charge of 134A
11.0 oz. of refrigerant oil

System Operating Pressures:
Automatic System: Low 20-50psi High 160-250psi
Manual System: Low 22-50psi High 160-250psi

Like I said just information.

May 7, 2004 | 04:30 PM

#20

c96drumm

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From: Colorado, U.S.A!

Hey, Tom, are those pressures standard for all the factory 134a systems?

May 7, 2004 | 08:16 PM

#21

dsmith1484

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From: USA

No mine is blowing cold. It was starting to get a little week last fall but I did not worry about it.

THANKS for the info regarding the amounts and pressure’s!!!!!!!

I also have to do my wife’s mustang so I will be getting some experience this weekend. I will check the pressures on the mustang and see I they are the same. Just a thought, If you get one of those recharge kits with the gauge that is used for all cars they have the green yellow and red zones on the gauge. I would assume that all 134 systems are the same as the gauge is universal.

Don't hold me to this.... Just a thought that comes to mind.

Dean

May 8, 2004 | 07:46 AM

#22

TomCarperNGiles

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From: Cleveland, TN area.

c96drumm,
No, those pressures are just for the '96 Ford Explorer. It gets very technical if you let it. I just threw those in for info. Temp, hood up or down, rpm's, outside air or recirc air, all of this can make for a interesting time.
An A/C man's rule of thumb was to recharge untill the return line sweats back to within a half inch of the compressor.
Unless there was a major loss of fluid and oil a half pound a year is not unheard of. It really pays to run your system for at least 10-15 min. a month especially in the winter. (done using defrost). But like I said this is information that I hope someone can use.

Last edited by TomCarperNGiles; May 8, 2004 at 07:58 AM. Reason: More info.

May 17, 2004 | 07:52 AM

#23

grogant

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Joined: Jun 2002

Posts: 38

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From: Cincinnati USA

Pressure switch ?

I did as described and jumpered the connector filled system and got cold
and it was sweating 1/2 from the compressor. Gauge read charge as full
and then reconnected the switch and wouldn't run. I am going to replace
the switch hope that is the fix. only 15 bucks for the part so I guess I'll find
out. is it common for this to fail?

Thanks In Advance,

Tim