Plenty of suggestions but it is not expensive to have your AC system
diagnosed by a pro. I'd look at high pressure switch, dryer conditon,
expansion valve(if equipped) and maybe plugged orfice. Problem is if you do
diagnose the problem I doubt you have the proper equipment to vac and
recover your freon then properly recharge your system. Seen too many people
buy wal mart recharge kits and over charge, under charge or not remove all
the moisture from the system. Waste 100 bucks then take it to a pro and have
it fixed right for 75 bucks.
On Sat, 27 May 2006 14:51:56 -0500, email@example.com wrote:
Given the age of the vehcle it is likely low on R134a and that is way
it is cycling and not cooling (when system gets low enough, it will
not longer even run) so I do not see a switch issue here. You can get
a recharge kit with a gage a lot cheaper than tou can pay a tech to
lot at it. If you add R134a to it, do not add more than one can unless
you really know what you are doing as a overcharge can damage system.
Not to argue but there are alot of AC shops that offer diagnosis for
19.95-24.95. Take away ecm controlled AC functions like fan command and WOT
compressor off and even more on newer vehicles you are left with the hard
parts, high pressure switch and low pressure. You are exactly correct that
low freon will cause short cycle and no cycle at all but a restriction will
cause high head pressure and the same symptoms. Without the proper tools it
is hard to diagnose correctly. I don't think the OP has the correct tools
and they cost far more than a shop will charge to do it right. .5 oz of
freon will make the diffrence between 50 and 35 vent temp.
Thanks for the answers.One more question ,do i have to remove
the under das part of the radio to plug in a aftermarket
stereo in the truck? I have what they say is the right
adapter for the wiring. No way il it plug in to the under dash
part> once again thanks.
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