2003 G35 coupe having ac problems. I had it in the shop for a week and found out is not any fuses, there is freon in the system and no leaks anywhere. The heat works fine. The guy said he though there was a problem somewhere in the software, but he couldn't find it.

I live in Dallas and it's already in the high 90's, I'm sweating my *** off lol. Can anyone offer any help? Or recommend a reputable shop?

 

Sounds like you need to take your car to another shop..is it blowing hot air?

 

Did you check your freon levels? Sounds like you just need to refill your freon

 

It's possible your drier has moisture in it. That can cause your A/C to blow warm, even with freon in the system.

I'd get to a shop that has an evacuator, and have them put a vacuum on your A/C system for about 45 minutes to pull all of the freon/air/moisture out of your lines, and then have them re-charge the system. Is there any way you can get to a set of A/C pressure gauges so you can see what the pressures in the high and low ends of your A/C unit are like?

 

I picked it up from the shop. The ac blows whatever temperature it is outside. So yes, right now its blowing hot.


Freon has been checked and is ok.

This has already been done.

 

You may need a new compressor...what the hell does software have to do with the AC? lol i hope you didn't pay for that diagnosis

 

Well, do you hear the A/C clutch engaging when you turn the unit on?

 

Might be the compressor. My wife's car does this and the power control module intermittently(sp?) cuts off which in turn shuts the compressor down..aka hot air.

 

See if your compressor clutch is engaging . Also check your coolant, if your car is running hot the a/c compressor wont turn on.

 

i used to work at an auto shop and what happens alot is that there is an bubble or "air pocket" in you cooling system and it needs to be burped out, although i cant remember if its the AC cooling system or the Radiator cooling system... but a few years back my car all of a sudden didn't blow cold air, and i took it into the shop i worked and and he said there is air in your cooling system and once we got the air out it worked like a charm

EDIT: i think its the radiator cooling system, a bubble in there can cause havoc and not allow the thermometer to engage properly, also you might have to replace the thermometer if its bad

hope it works let me know im curious

 

ac cooling, radiator cooling, burping barnacles bubbles, thermometer replacing..wtf is going on...