Hello all. I have 04 accord lx sedan. I put new compressor, condenser, evaporator, ac pressure switch. I'm holding vacuum, but won't take freon. Here's what I checked:

I applied power to the single wire connector and the ac compressor clicked.
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I then checked the relay, I applied 12v to the wire goin from the relay, to the ac compressor. It clicked.

I have the xtrons head unit but have reason to believe that is working fine as my climate controls work.

I checked the fuse and the fuse is getting power(12v)on both legs
what can be the problem?

 

It won't take freon?

Are you using a manifold set? Are you experienced in using a manifold set?

So you pierced the can and opened the valve at the can? Did you also open the low side valve? Should get enough pressure in the system to trigger the low pressure switch and get the AC compressor running.

 

No, it won't take freon. This is my 3rd time using the guage set.

When I used the can, it took some freon, but I think that was the vacuum I introduced. The low side went up but ac compressor didn't click on, and then low side went back down. Probably blew an o ring or something probably.

The low side piping(the fatter pipe?) gets cold but the skinnier pipe says warm.

 

Is there a high pressure side switch? I didn't replace relays as they look new but I suppose I can go buy some

 

Are you getting the pressure in PSI up to at least the ambient temperature in F? So 70psi if it is 70F outside.

Yes fat pipe is low side.

 

I did have the can hooked up and the pressure did go up and it held then it went back down. I was surprised to see freon go in, that I didn't take notice to the pressure it rose to😅

For whatever reason, the compressor isn't coming on to draw in more freon. Everything is brand new. Is there a high pressure switch somewhere? My 2.4 accord has the 2 wire pressure switch right at the condenser.

 

It is a pressure transducer. It reports the pressure to the PCM and from there the PCM decides if the compressor should run.

You won't see freon being charged in the sight glass unless you turn the can upside down and charge with liquid. Not recommended for the novice. Good way to blow up the compressor.

Put the gauges back on and see if you have a leak.

 

Yep when I turned it upside down, it flower but didn't take anymore. So you think the ecu may be shot? Should I jump the pressure switch plug and see if the compressor kicks on? I have the old compressor which probably worked.

 

No, do not jumper the pressure sensor. It will just throw a code and not turn on the compressor. I doubt your PCM is bad.

Are the fans running when you turn on the AC?

Did you check to see if the system still has pressure?

 

will report my findings with pictures tomorrow.

 

bump

 

Why are you bumping? We are waiting for you to provide more data...

 

so that more people can see, not just one person.

 

More eyes are going to want more data. How about some manifold pressures.

At this point the information you have provided is not enough to help diagnose the problem you are having.

 

I have posted my issue, my lack of numbers won't help anyone since Im not getting pressure but hold on