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Re: No LBC, Checking a relay

To: rrengineer@dslextreme.com
Subject: Re: No LBC, Checking a relay
From: Lester Ewing <lewing@sport.rr.com>
Date: Sat, 17 Jun 2006 23:19:34 -0500
NO no no.. it's taking it to a dealer, maybe only a Louisiana  
problem, will only make your problem worse.

Lester


On Jun 17, 2006, at 4:23 PM, Jim Juhas wrote:

> Wow, Lester, what a pessimist!
>
> I had a similar issue on my Dodge Neon and bypassed the relay to  
> make it run.  In my case, it did, but the fix wasn't simple.  Turns  
> out a pressure switch near the compressor was faulty.  I had the  
> dealer replace it, and it works fine now.  But my advice is that  
> simply bypassing the relay does not necessarily tell you it's bad.   
> You can remove the relay and energize it on the bench and see if it  
> clicks, and see if the contacts close with a meter or test light.
>
> As far as old systems never working well, I converted my 1986  
> Mustang over to the new refrigerant and had the dealer finalize  
> that for me, too.  Works great, I guess as long as you can find  
> competent help.  I'm fortunate that I did.
>
> Lester Ewing wrote:
>
>> You can always bypass the relay with 12v and a jumper wire..  of   
>> course there are also several safety switches in newer A/C  
>> systems  like overpressure switches that will keep it from  
>> running.  Check  voltage at the compressor and if there is none  
>> put 12v to it and see  if it "clicks".  No need for it to be  
>> running for this.  After you  are sure that it isn't simple, be  
>> prepared for it to never work well  again.. that is assuming that  
>> you take it into the dealer..  ;-)
>>
>> Lester
>>
>>
>> On Jun 17, 2006, at 8:15 AM, Chris King wrote:
>>
>>> Listers,
>>>
>>> Anyone know how to check a relay? The A/C on my 2000 ford Ranger  
>>> is  not
>>> working because the compressor is not engaging. The refrigerant   
>>> level is
>>> OK (I have one of those nifty cans with the gauges on it). I'd  
>>> like to
>>> make sure it's not something simple before I bring the truck into  
>>> the
>>> shop. Fuses are fine, but there's one relay for the A/C listed,  
>>> and  I'd
>>> like to check if it's good or not.
>>>
>>> Thanks.
>>>
>>> -=Chris
>>> Chris King
>>> http://home.comcast.net/~kvcbk/




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