Weird (and annoying) A/C Issue

jm1fd · 02-27-2015, 06:17 AM

How many non-factory heat exchangers have you installed in front of the condenser?

It sounds like it is shutting down because the high side pressure is too high, probably because of intercoolers/oil coolers/etc dumping heat in front of the condenser, preventing it from being able to shed heat like it should. The pressure of R-134a goes up pretty dramatically past about 120 F.

pty370z · 02-27-2015, 08:49 AM

Quote:

Originally Posted by jm1fd

How many non-factory heat exchangers have you installed in front of the condenser?

It sounds like it is shutting down because the high side pressure is too high, probably because of intercoolers/oil coolers/etc dumping heat in front of the condenser, preventing it from being able to shed heat like it should. The pressure of R-134a goes up pretty dramatically past about 120 F.

I only have the oil cooler, nothing else. It is the Z1 34-row oil cooler.

Quote:

Originally Posted by JWillis72

My cars A/C didn't work right when the car got hot, I would work on cooling the car. Your seeing 220 on the street with a oil cooler? Maybe a larger cooler would help? That seems high for a N/A car with a cooler to me.

No, not that high. The oil temp. never gets past 200 F. I have the Z1 34-row oil cooler, I think that's as far as I can go on oil cooler, haha..

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02-27-2015, 06:17 AM	#1 (permalink)
jm1fd Base Member Join Date: Jan 2012 Location: Houston, TX Posts: 23 Drives: 1977 REPU White M5 Rep Power: 15	How many non-factory heat exchangers have you installed in front of the condenser? It sounds like it is shutting down because the high side pressure is too high, probably because of intercoolers/oil coolers/etc dumping heat in front of the condenser, preventing it from being able to shed heat like it should. The pressure of R-134a goes up pretty dramatically past about 120 F.