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A/C questions

Posted: Fri Jul 14, 2017 3:40 am
by Phil
2010 Kizashi SE. AC stopped cooling.
It has freon and pressure is good. Compressor clutch is not engageing.
Fuse is good.
Could this be the relay or pressure switch? I found a few relays but cant find anyplace that has the pressure switch. I'd like to rule out these two things before going to the expense of replacing the compressor.
Any sugestions would be appreciated.

Re: A/C questions

Posted: Fri Jul 14, 2017 10:43 am
by Woodie
Might just be a slow leak. Once it leaks down to a certain point, it won't switch on anymore.

EDIT: Oh, duh! My reading comprehension is slipping a bit.

Re: A/C questions

Posted: Fri Jul 14, 2017 12:07 pm
by Phil
I should add that it just stopped cooling all at once. Went from ice cold to nothing in seconds. No gradual getting warmer.

Re: A/C questions

Posted: Fri Jul 14, 2017 3:32 pm
by WESHOOT2
Mine was blower and blower controller......

Re: A/C questions

Posted: Mon Jul 17, 2017 2:51 pm
by LPSISRL
You already figured it out fore the most part. The clutch is not engaging. See if you have 12 volts going to it. If so, bad clutch. If not, start checking the relays. The good news is that if it's not a clutch, it's a fuse or relay which will be cheap. It is possible that if you blew a seal somewhere and all the R134 leaked out which would stop the compressor from engaging. If that's the case, it's shop time as you would probably not be able to find and fix the blown seal properly as most of us don't have the proper tools, parts and expertise. Not repairing A/C properly usually means a premature failure and more $$$ so do it right the first time.