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Discussion Starter #1
The a/c on my 2001 Mustang is not blowing cold. It was working fine one minute and blowing hot the next. I took it to a mechanic. His best guess right now is that it's the CCRM. He checked controls, pressure switch, etc. (Nothing else controlled by the CCRM seems to be malfunctioning.) He did mention that the static pressure is up around 150, which seems odd. Why is it so high? Any ideas before I proceed with emptying my wallet?
 

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First off, find a mechanic that does not guess. That will cost you more money than anything since he will just throw parts at it. Find a mechanic that is an A/C specialist. You should get a solid answer and correct diagnosis and repair straight off.

Remember this, if your mechanic has a dart board in his garage, he probably uses it to pick which thing he is gonna repair in hopes of actually fixing your car.
 

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First off, find a mechanic that does not guess. That will cost you more money than anything since he will just throw parts at it. Find a mechanic that is an A/C specialist. You should get a solid answer and correct diagnosis and repair straight off.

Remember this, if your mechanic has a dart board in his garage, he probably uses it to pick which thing he is gonna repair in hopes of actually fixing your car.

I think he hit it on the head with that one, we dont have a machine hooked up to diagnose this correctly therefore anything would be an educated guess which in the end could be costly, a certified ac tech can hook up machinery to diagnose exactly what may be causing this malfunction, it could be something as simple as a bad orphic tube or expansion valve or it could go to a hole in the evaporator core or going bad compressor, but your best step is spend the money for them to check it, difference in pressures could lead to many things, take it to a pro, get it done right. Saves you down the road.
 

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Discussion Starter #4
Thanks for the input. Your advice is reinforcing my own instincts. What are your thoughts on dealer vs. independent shop? I don't have a particular mechanic that I frequent. I know dealers are generally pricier. Is it worth it in a case like this? Thanks.
 
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