91 Honda Accord air conditioning leak

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Jabroni143@gmail.com - 11 Aug 2006 16:21 GMT

My 91 Accord's A/C is blowing warm air. I first figured that I needed a
freon refill, so I wanted to give that a try. When I tried to empty out
the old refrigerant, I couldn't get good vacuum pressure on the line.
Obviously, I suspect a leak in the line. Is there an effective way to
pinpoint the location of the leak, and is there a particularly
effective way to seal the leak? Or am I overlooking something else that
I can't think of?

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Earle Horton - 11 Aug 2006 16:47 GMT

Soap bubble test, flourescent dye, electronic leak detector all come to
mind. The local Autozone has a rack full of AC tools and supplies,
including leak detectors. If you want to try the shotgun approach, buy an
O-ring kit and replace all the O-rings in your system. One doesn't normally
"seal" AC leaks, but rather replaces the defective part. A vacuum pump is
not a good way to evacuate a system which might have refrigerant in it. If
you manage to suck liquid, you could damage your pump. Nowadays "they"
recommend a recovery station.

Earle

> My 91 Accord's A/C is blowing warm air. I first figured that I needed a
> freon refill, so I wanted to give that a try. When I tried to empty out
[quoted text clipped - 3 lines]
> effective way to seal the leak? Or am I overlooking something else that
> I can't think of?

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ib - 11 Aug 2006 16:49 GMT

If you can't get close to a reasonable vac then the leak is quite big (but
check it's not leaking at the connector). Try pumping a little bit of air in
(not too much as you don't want to introduce moisture). You should hear it
leaking out somewhere. I've seen quite a lot of Hondas high pressure pipes
fail under the pipe clamps (traps moisture, etc), 2nd favourite is the
condensor

www.poolecool.co.uk

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