96 Town Car a/c only works for 10-15 mins

The air conditioner in my 96 LTC blows nice and cold until about 10-15 min's after the engine warms up.

Upon a cold-start, I turn it on, w/ the EATC set on 60. The compressor immediately kicks-on, runs for about 5-8 sec' then switches off for 5-8 sec's. It does that four to five times before the comp. runs continuously, as it is supposed to do.

The black cylinder that's next to the coolant reservoir-- the condenser (evaporator, maybe?)-- Whatever it is... It becomes cold to the touch, and *Condensate builds-up on its outer surface, as it is supposed to.

So, after 10-15 minutes, the compressor will shut-off for 5-15 secs, then kick-on for 5-8... And just keeps going through that cycle and the inside air quickly becomes warm.


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> I recharged the system about three wks ago, and it does blow noticeably colder... When it's working for that 10-15 minutes, that is.

> I am unable to get the EATC to enter test mode. Pressing OFF & FLOOR simultaneously, then while holding those two buttons down, pressing AUTOMATIC is supposed to do it. Am I doing something wrong?
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*Just a little fun-fact: Contrary to popular belief "condensate" is the actual water itself that forms on the outside of a container which is colder on its inside, than the outer air temp (a glass w/ ice in it, for example)-- "CONDENSATION" is the process which causes the condensate to form. [I didn't know that 'til recently(!)]
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LovelyWendie (http://www.lovelywendie99.com/)

When you filled the system with refrigerant, did you also check for proper low and high pressures, temperatures, and vacuum?

http://p71interceptor.com/actuneup/pictures/

Yes, I did.
I was experiencing the same problem before as well as after the recharge, if that makes a difference.

Shortly after I posted my original msg., I figured out how to enter test mode on the EATC. It gave me code "025". any idea what that means?
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Lovely Wendie99 (http://www.lovelywendie99.com/)

Yes, I did.
I was experiencing the same problem before as well as after the recharge, if that makes a difference.

Shortly after I posted my original msg., I figured out how to enter test mode on the EATC. It gave me code "025". any idea what that means?

EATC Code 025 is for a Blend Door Failure (http://www.p71interceptor.com/eatcswap/selftest.html). I found this answer in less than 30 seconds via Google.

Thank you, all2kool...
I, as well, found that info through Google.

The reason my previous reply included that question was b/c I hoped that someone might have some insight, in addition to what I had found elsewhere. But, I thank you for the condescension (Please forgive me, & correct me if I've misinterpreted your posted reply)
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Thank you, all2kool...
I, as well, found that info through Google.

The reason my previous reply included that question was b/c I hoped that someone might have some insight, in addition to what I had found elsewhere. But, I thank you for the condescension (Please forgive me, & correct me if I've misinterpreted your posted reply)

Condescending I was not, applauding Google I was. To have avoided confusion, you should have included what you had already found out perhaps.

Ah, crabs!
Sorry 'bout that, man! I thought you were making fun of me.

And, you're right-- I should've posted the info that I'd found... I suppose I was the one who made things confusing, that time :)

THANKS for the replies!


PS Is there any way to express inflection/tone/feeling, in an e-mail, other than using those dumb little emoticons?
THIS was a prime example of a time when I needed to show that [U]*I* wasn't being condescending-- But I still feel like a tool having to use a stupid "smiley"!
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Ah, crabs!
Sorry 'bout that, man! I thought you were making fun of me.

And, you're right-- I should've posted the info that I'd found... I suppose I was the one who made things confusing, that time :)

THANKS for the replies!


PS Is there any way to express inflection/tone/feeling, in an e-mail, other than using those dumb little emoticons?
THIS was a prime example of a time when I needed to show that [U]*I* wasn't being condescending-- But I still feel like a tool having to use a stupid "smiley"!

In your defense, I can be a butthead sometimes, but this wasn't one of them.

I did a little searchin'-around Google, lookin for info re: whether the "025" (blend door) eatc code could have anything to do w/ the compressor kicking on and shutting off-- Couldnt find anything.... I've been known to phrase my Google searches properly, though.

Have any idea if that blend door issue would cause my problem?
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Replace the AC pressure switch, located near the expansion chamber. It's a Schrader fitting so no need to empty the system.