Car Problem Diagnostic help?

[heybatter]

Howdy y'all

I experienced a problem with my car's A/C system today while on a approx. 3 hour drive home. My car's A/C seemingly "died" for about an hour on the ride, but returned and it seems fine now. That's basically the best way I can describe it, there wasn't much of a discernible difference between any of the fan speeds during this time and there was no A/C to be felt either. I had played around with some of the settings(a/c on/off,speeds,etc.) and nothing happened so I rolled down the windows and assumed my a/c died. A short while later though I decided to turn the fan back on and lo and behold, it now was working. Is there something that is on it's way out in my A/C unit? Some motor or something else? Thanks in advance for any advice or feedback...

The car is an 07 Mazda btw.

 

[Vickers]

On the highway? And it came back on when you slowed down or stopped for a break?

 

[heybatter]

Yes, it came back on while driving. Perhaps after turning the fan off and then on again. Hey, as long as it keeps working, I'm good with that.

 

[harleyrkc]

I wouldn't be good with that. Its probly a sign of whats to come. Do you know anyone with a set gauges? I'd highly recommend getting to the bottom of the problem before it rears its ugly head again and maybe breaks something else with it.

 

[syngent]

I work at Mazda hang on ill ask a tech what they think i take it its a mazda 3 ?

 

[syngent]

Tech says from what he can see though a tough call without seeing car... most likely it is the expansion valve, though as their parts guy i can tell you i dont order a whole lot of those... and again i am assuming its a mazda 3

 

[ricardo9505]

my money's on an a/c relay under the hood in the fuse box. see if it gets hot or starts clickin. you can also test the continuity by reading the circuit on the relays themselves

 

[Go West Young Man]

Could be a coolant problem, the car's computer shuts the A/C off if coolant levels get low.

 

[syngent]

Also depends on if it's auto air or manual air controls... can't be the relay the relay has a tonne of connected things on that same circuit

 

[heybatter]

Could be a coolant problem, the car's computer shuts the A/C off if coolant levels get low.

Just checked and it is low on coolant...good call. I didn't think of checking that. Thank you.