Anyone experience A/C problems...read on
Thread Starter
Burning Brakes
Joined: Feb 2006
Posts: 902
Likes: 242
A/C problems...why won't the dang thing turn on!!!
Pulled the beast out this weekend - man it was nice, but I digress - today went to turn on the A/C. The light on the switch came on, but 2 or 3 seconds later, it switched off. Tried repeatedly, set temperature to 15C/50F - it was 25/78F outside, so it should have come on without a problem. I set the air to come out of the windshield vents as it defaults to an A/C setting when doing this, but the light kept going off after 2 or 3 seconds and no A/C air, just outside air. And yes, I was using it correctly.
Question: Anyone experience this? What could be causing this - bad switch (probably not), bad relay (not tripping and the switch turns itself off when a constant voltage is not returned), bad compressor (ouch, don't even want to go there). Everything worked at the end of last year.
Could this possibly be a result of a completely drained battery (forgot to disconnect it before storing) and then had to get a boost? If so, what do I need to do to reset, or did I fry something when it was boosted?
Thanks in advance for the help. Can anyone with a service manual see if there is any write up on this kind of scenario. I'm going to check the relay/fuse panel tonight but any other ideas would be helpful.
Cheers
Question: Anyone experience this? What could be causing this - bad switch (probably not), bad relay (not tripping and the switch turns itself off when a constant voltage is not returned), bad compressor (ouch, don't even want to go there). Everything worked at the end of last year.
Could this possibly be a result of a completely drained battery (forgot to disconnect it before storing) and then had to get a boost? If so, what do I need to do to reset, or did I fry something when it was boosted?
Thanks in advance for the help. Can anyone with a service manual see if there is any write up on this kind of scenario. I'm going to check the relay/fuse panel tonight but any other ideas would be helpful.
Cheers
Last edited by raztek; Apr 23, 2007 at 04:30 PM.
Melting Slicks
Joined: Mar 2001
Posts: 2,482
Likes: 0
From: Worden Illinois
Did you notice if the light was blinking? On the auto hvac systems when the light blinks it is sending a trouble code. You will have to go into the DIC to see what the code is. If I was a gambling man, I would say you are low on freon. Gook luck.
Banned Scam/Spammer
Joined: Jul 2006
Posts: 2,911
Likes: 10
From: Simi Valley CA
Mine does it too.. but because I spliced into the low pressure sensor for my wideband. When I switch it to wideband (the ac sensor is then disconnected) it does exactly the same thing.. which should mean low pressure level.
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Melting Slicks
Joined: May 2000
Posts: 2,498
Likes: 4
From: Brentwood TN
Refrigerant is low. Try putting in a can of the stop leak stuff followed immediately with a can or two of r134. Low side pressure can be as low as 20 psi depending on ambient temp, but memory says closer to 30 psi on low side and max of about 150 on high side will give you cold air. Anyone have their Helms near by and can check these pressures?
Charlie
Charlie
Thread Starter
Burning Brakes
Joined: Feb 2006
Posts: 902
Likes: 242
Thanks folks! No it doesn't blink, lights up when I hit it, then 2-3 seconds later goes off. Hopefully its something as simple as low refrigerant...may have to take a trip into New York to get it fixed as I think they passed some legislation on the freon that can be used up here in Canada.
Race Director
Joined: May 2006
Posts: 10,937
Likes: 478
From: EAST TENNESSEE
Thanks folks! No it doesn't blink, lights up when I hit it, then 2-3 seconds later goes off. Hopefully its something as simple as low refrigerant...may have to take a trip into New York to get it fixed as I think they passed some legislation on the freon that can be used up here in Canada.
Turned mine on today,I have the same problem!
Hope to check it out when I find the time,but it was a good excuse to drop the top
Advanced
Joined: Feb 2002
Posts: 64
Likes: 1
From: sedona az
Recharge
If you do throw a set of gauges on it, refer to the R134 Temperature/pressure chart. The low and high side pressure vary Vs. ambient temperature.
I.E., if you fill to recommended temp and it is 40F outside, when it is 100F outside the high side pressures will be destructively high.
If the compressor has a release valve it will release the excess to the atmosphere. It not the compressor will self destruct.
Good luck!
Rgds,
RG
AZ
I.E., if you fill to recommended temp and it is 40F outside, when it is 100F outside the high side pressures will be destructively high.
If the compressor has a release valve it will release the excess to the atmosphere. It not the compressor will self destruct.
Good luck!
Rgds,
RG
AZ