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Car Forum / Chevrolet / Chevrolet Trucks / December 2004

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1992 plymounth voyoger air condition

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greg405 - 23 Dec 2004 21:37 GMT
My air condition cut in & out that won't even cool the van. I check freon
is full. and pressure when compressor running show normal. I replaced
compressor still doing the same thing. I retropit to 134 still doing the
same thing. need help
seeray28 - 24 Dec 2004 13:08 GMT
did you replace the capilary tube? its a small filter that is in the ac
line. if thats clogged then the compressor will cycle on and off .

> My air condition cut in & out that won't even cool the van. I check freon
> is full. and pressure when compressor running show normal. I replaced
> compressor still doing the same thing. I retropit to 134 still doing the
> same thing. need help
TranSurgeon - 24 Dec 2004 17:11 GMT
hahahaha

'capilary tube' in a Voyager ???

you haven't ever worked on a Mopar AC system, have you ?

> did you replace the capilary tube? its a small filter that is in the ac
> line. if thats clogged then the compressor will cycle on and off .
[quoted text clipped - 3 lines]
> > compressor still doing the same thing. I retropit to 134 still doing the
> > same thing. need help
seeray28 - 26 Dec 2004 13:19 GMT
nope I try to stay away from those things.
just trying to help

> hahahaha
>
[quoted text clipped - 10 lines]
> > > compressor still doing the same thing. I retropit to 134 still doing the
> > > same thing. need help
TranSurgeon - 24 Dec 2004 17:11 GMT
replace the H-block (expansion valve assembly) and get on with
life...........

> My air condition cut in & out that won't even cool the van. I check freon
> is full. and pressure when compressor running show normal. I replaced
> compressor still doing the same thing. I retropit to 134 still doing the
> same thing. need help
greg405 - 26 Dec 2004 21:48 GMT
i replaced h-block when i replaced my compressor but still doing the same
thing

gre
Scott M - 27 Dec 2004 09:35 GMT
Take a look under the dash on the right side for a temp cycle switch. I
think that chrysler will have one. Some can be adjusted to cycle at a lower
temp. You can use a 12v test light to see if thats it or just listen for a
click from it when it cycles.

>i replaced h-block when i replaced my compressor but still doing the same
> thing
>
> gre
Whitelightning - 28 Dec 2004 03:24 GMT
> Take a look under the dash on the right side for a temp cycle switch. I
> think that chrysler will have one. Some can be adjusted to cycle at a lower
> temp. You can use a 12v test light to see if thats it or just listen for a
> click from it when it cycles.

Ok he says he has replaced the H-block and compressor and of course
he replaced the filter dryer as well.  He further states the pressures are
correct.  Being this is a Chrysler product, if everything he says is
correct, then
I would be looking at the heater control valve, no blend door on this model.
If the valve isn't closing, then the evaporator is fighting with the heater
core, which
can cause pressures to go out of whack at the sensor at the H-Block causing
the
compressor to cycle like mad.

Whitelightning
 
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