No ac, only hot air and only coming from the defrost vents. I can not change direction of air or temperature. I can hear the relay click but no cold air.

 

Check the FSM and google z32 auto climate control diagnostics. If you need a new control unit, I have one I'll give you. I'm in palm springs.

 

I've done the diagnostic thing but numbers don't make any sense to me. I can take pics in the morning of what its displaying when in diagnostic mode if that helps.

 

Hi

- Are you sure you have frigofluid in the pipes ?
- Compressor can bu running but not compressing if dead
- Is the radiator fan running when you turn on A/C ?

 

No I haven't been able to check refrigeration fluid or pressure...but yes the fan comes on when I turn on the a/c.

I'm guessing the air is hot because its passing over the heater core due to the fact that I can not change the direction of air flow from the defrost vents.

 

You should first check the fluid it's a common issue
then there is no relation with the heater, except if you have another problem like you're heating and freezing at the same time

 

Ok I'll check the refrigeration fluid when I get a chance then come back when I have more info.
Thanks!

 

Just a thought, is there a way to electrically test the the ac compressor and or clutch to see if its working??

 

I would say you can check voltage for the clutch command first (to know if you have a command from control unit)
but then clutch can be on and the compressor broken
you should control the pressure with compressor working and clutch under voltage to know

excuse my english level :~

 

maybe u should invest in a set of r134 pressure gauges :/

 

Would I be testing for voltage at the relay?

 

u mean I ?

 

meaning you...

 

I'm looking for the electrical scheme

 

Ah lol yes I mean "i" meaning me haha. Thanks!

 

got the scheme
mp if you need it