Air conditioning problem.

[elementalwindx]

Ok I just installed a new (well used for very low miles) ac compressor, and I'm trying to use R134a in this system and I've followed the directions, use the low press line on the compressor, hook up the R134a, start the car, turn the AC on, and fill to the blue area on the gauge.

Now the compressor looks like its not even spinning. The part that needs to be spinning when its actually on. This is the same problem I had with the previous compressor. Is there some kind of pressure switch I need to inspect, or what? What would be the next course of action to take in figuring out why this compressor will not turn on? Thanks guys.

 

[Defiant]

It's not going to turn on with no pressure in the system. And before you fill, the system has to be vacuumed down.
Was anything apparently wrong with the old compressor? Had you checked your AC ECU?

The pressure switch on the receiver/dryer, next to the radiator, will have to be jumped until there's some pressure being developed by the system. You may want to go ahead and turn the job over to an AC shop, now that the most expensive work has been done. They'll probably insist on a new receiver/dryer.

 

[elementalwindx]

It's not going to turn on with no pressure in the system. And before you fill, the system has to be vacuumed down.
Was anything apparently wrong with the old compressor? Had you checked your AC ECU?

The pressure switch on the receiver/dryer, next to the radiator, will have to be jumped until there's some pressure being developed by the system. You may want to go ahead and turn the job over to an AC shop, now that the most expensive work has been done. They'll probably insist on a new receiver/dryer.

Any chance theres a dummy pic of this switch on the reciever/dyer?

The old compressor worked but was weak, so I guess the system just needed to be recharged. I got this other compressor for a trade on a part so I figured I'd change it and see whats up. Where is this AC ECU too?

 

[95blackGsTurbo]

All A/C work shuold be turned over to an A/C shop. Highly illegal to do any of your own work because if you vent the freon and get caught you can be looking at some major fines. In order for it to work properly you have to suck the system into a vacuum for at least a half an hour depending on how long you left the system open when you changed the part. Moisture and air in the system will cause it to not cool as well as it could. R134a isn't like the old R12 either. You can to be pretty exact on the amount you put in otherwise it won't blow cold as well.

 

[Defiant]

Any chance theres a dummy pic of this switch on the reciever/dyer?

It's the only plug there. Driver's side of the radiator.