[DML] Re: Bob's AC problems.

["Dave Swingle" <swingle@xxxxxxxxxxx>]

I see the opposite - I've noticed on my car that the temp gauge 
actually reads lower with the A/C on than with it off. It's not an 
electrical drop issue, I can see the temp rise and fall slowly. If 
turning on the air heats the engine temp appreciably you have other 
problems. 

In my case I have the fans wired to run continuously with the A/C 
turned on (they do not cycle with the compressor clutch), and I'm 
running a slightly cooler thermostat (by accident). This means that 
with the A/C on I'm actually overcooling the engine a bit. I'm now 
running the aftermarket 3-core radiator, but a NOS OEM unit (that 
started leaking after 6 years) was the same way. 

You could also have a radiator problem. If it is the original radiator 
you should replace it, even if it isn't leaking. Many of the originals 
are plugged up from prior neglect and just don't cool well. 

Dave Swingle

buy my other car......
http://www.dmcnews.com/BuyNSell/2466forsale.html


--- In dmcnews@xxxxxxxxxxxxxxx, "stainlessilusion" <5n-@xxxx> wrote:
> Videobob: You may notice your car running hotter due to the current 
> draw of the AC system. The needle of my temp gauge moves higher with 
> the AC on, even higher when the lights are on, and higher still with 
> the addition of the heater fan. I can watch the gauge move up and 
down 
> the instant I turn on or off my lights. Perhaps this is what you're 
> noticing with the AC, if not; I don't see a way that the engine would 
> run hotter with AC running, it should run cooler. The belt broke 
> because something caused the compressor or clutch to seize. I'm just 
> getting to this post now, so I'm not sure what you've replaced so 
far. 
> If you have reoccurring AC problems then perhaps you should get a new 
> or known good used compressor to install. Do you have oil in the AC 
> system-how much-what kind? Do you have a small leak somewhere that is 
> allowing the oil to drain out of the AC system? When is the last time 
> you changed the orifice and did a pressure test? These are all things 
> to check out. If you know for a fact that the compressor/shaft/clutch 
> is good, then there must be a blockage of some kind somewhere in your 
> system. -----Dani B. #5003







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