AC doesnt work, relay?
Thread Starter
Banned
Joined: Oct 2006
Posts: 1,206
From: Mount Laurel, NJ
AC doesnt work, relay?
My ac was working, and then all the sudden it stopped after sitting for a few weeks. The compressor isnt seized, and there are no leaks, in fact the pressure in the system was at 120psi! yikes! I drained and refilled it with 134 but the compressor refuses to engauge. I was thinking its a relay or fuze of some sort. Anyone else have this issue?
Joined: Jun 2008
Posts: 8
RE: AC doesnt work, relay?
Sounds like a high pressure switch. I had the same thing happen on my 94. On my car it is close to the pass. firewall. Once you have located it pull the plug off of it and use a jumper wire to go from one side of the plug to the other. Check to see if your compressor is engaged and if it is your High Press. Switch is bad. A new one for my car was only $15. There is also a fuse but you'd have to check your manual.
The Rogue Mod
Joined: Feb 2006
Posts: 21,918
From: Maryland Sucka's!!
RE: AC doesnt work, relay?
ORIGINAL: davidgt97
Sounds like a high pressure switch. I had the same thing happen on my 94. On my car it is close to the pass. firewall. Once you have located it pull the plug off of it and use a jumper wire to go from one side of the plug to the other. Check to see if your compressor is engaged and if it is your High Press. Switch is bad. A new one for my car was only $15. There is also a fuse but you'd have to check your manual.
Sounds like a high pressure switch. I had the same thing happen on my 94. On my car it is close to the pass. firewall. Once you have located it pull the plug off of it and use a jumper wire to go from one side of the plug to the other. Check to see if your compressor is engaged and if it is your High Press. Switch is bad. A new one for my car was only $15. There is also a fuse but you'd have to check your manual.
To the o/p, was the car already converted for 134a or did you do that?
Thread Starter
Banned
Joined: Oct 2006
Posts: 1,206
From: Mount Laurel, NJ
RE: AC doesnt work, relay?
ORIGINAL: PRO50SC
That would be the low pressure switch and on the foxbody it's located on the accumulator.
To the o/p, was the car already converted for 134a or did you do that?
ORIGINAL: davidgt97
Sounds like a high pressure switch. I had the same thing happen on my 94. On my car it is close to the pass. firewall. Once you have located it pull the plug off of it and use a jumper wire to go from one side of the plug to the other. Check to see if your compressor is engaged and if it is your High Press. Switch is bad. A new one for my car was only $15. There is also a fuse but you'd have to check your manual.
Sounds like a high pressure switch. I had the same thing happen on my 94. On my car it is close to the pass. firewall. Once you have located it pull the plug off of it and use a jumper wire to go from one side of the plug to the other. Check to see if your compressor is engaged and if it is your High Press. Switch is bad. A new one for my car was only $15. There is also a fuse but you'd have to check your manual.
To the o/p, was the car already converted for 134a or did you do that?
D.R. THE PATHETIC DORK
Joined: Jun 2007
Posts: 30,871
From: West Virginia
RE: AC doesnt work, relay?
when the pressures equalize like at rest= a/c compressor not on120 is not bad ...temperature outside affects the relative pressure in an a/c system...and your car is equipped with an a/c cycling clutch switch...it could be the prob also
Thread Starter
Banned
Joined: Oct 2006
Posts: 1,206
From: Mount Laurel, NJ
RE: AC doesnt work, relay?
ORIGINAL: mjr46
when the pressures equalize like at rest= a/c compressor not on120 is not bad ...temperature outside affects the relative pressure in an a/c system...and your car is equipped with an a/c cycling clutch switch...it could be the prob also
when the pressures equalize like at rest= a/c compressor not on120 is not bad ...temperature outside affects the relative pressure in an a/c system...and your car is equipped with an a/c cycling clutch switch...it could be the prob also
D.R. THE PATHETIC DORK
Joined: Jun 2007
Posts: 30,871
From: West Virginia
RE: AC doesnt work, relay?
it's the one on top of the accumulator they are talking about = low pressure switch..jump two wire together and see if clutch engauges..if it does = bad switch if not ..it may have a bad WOT relay
Thread Starter
Banned
Joined: Oct 2006
Posts: 1,206
From: Mount Laurel, NJ
RE: AC doesnt work, relay?
ORIGINAL: mjr46
it's the one on top of the accumulator they are talking about = low pressure switch..jump two wire together and see if clutch engauges..if it does = bad switch if not ..it may have a bad WOT relay
it's the one on top of the accumulator they are talking about = low pressure switch..jump two wire together and see if clutch engauges..if it does = bad switch if not ..it may have a bad WOT relay
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