Air Conditioning question

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Gerry - 25 Nov 2004 01:35 GMT

I have a 2001 Explorer Sport. This AM, I was at a stop light and turned
the air on to defrost the windows. When I turned it on, the idle speed
dropped and the unit started to click on/off couple of seconds. Is this
serious?

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Jim Warman - 25 Nov 2004 02:10 GMT

Well, it certainly isn't any good for the AC clutch..... if left unattended,
the heat build up and friction can take many good parts south along with the
bad ones. First guess would be a leak in the system.... a low refrigerant
charge would give rapid clutch cycling BUT - I have seen the occasional
problem with both the high pressure switch and the low pressure switch.

Not to sound uppity but I would be getting this fixed rather than polling a
newsgroup for anecdotes....

On the up side, it is fodder for discussion which breeds knowledge. Sound
knowledge is a good thing in todays dog eat dog society.

>I have a 2001 Explorer Sport. This AM, I was at a stop light and turned
>the air on to defrost the windows. When I turned it on, the idle speed
>dropped and the unit started to click on/off couple of seconds. Is this
>serious?

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Gerry - 25 Nov 2004 03:42 GMT

> Well, it certainly isn't any good for the AC clutch..... if left unattended,
> the heat build up and friction can take many good parts south along with the
[quoted text clipped - 12 lines]
>>dropped and the unit started to click on/off couple of seconds. Is this
>>serious?

Thanks Jim

Could you estimate the cost for each of your suggestions?

Gerry

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Jim Warman - 25 Nov 2004 08:32 GMT

Without some time and opportunity for diagnostics, there's no way to
tell..... you can buy yourself some time by unplugging the AC compressor
clutch, but this is hardly any kind of "fix". A lot depends on what you
expect from your car. Personally, I have a hard time driving my own cars if
they exhibit anything abnormal.

I realize that many aren't in a financial position to repair problems as
they arise...... Like I tell my 16 year old son..... buying the damned thing
is likely the cheapest thing you will do to it.

>> Well, it certainly isn't any good for the AC clutch..... if left
>> unattended, the heat build up and friction can take many good parts south
[quoted text clipped - 19 lines]
>
> Gerry

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Herb Kauhry - 28 Nov 2004 15:00 GMT

Mine did this a couple years ago. I discovered a small rock (or something)
passed through the grill and pierced the condenser tubing.

> I have a 2001 Explorer Sport. This AM, I was at a stop light and turned
> the air on to defrost the windows. When I turned it on, the idle speed
> dropped and the unit started to click on/off couple of seconds. Is this
> serious?

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