AC clutch not engauging

[GreenChevelleSS]

Car hasnt had working AC for a very long time, I bought the o ring set and went through and replace all the O-rings, and dryer bottom, Put on a retrofit kit pulled the vacuum and put in some of the oil. Put 2 cans of freon in and while doing that I just ran power to the clutch to keep it engauged, Pluged it back up and its not working. The TSRM shows an AC fuse but I cant find it also any other tips on what to be looking for?

 

[CPT Furious]

Check your high/low pressure switch on the passenger side engine compartment between the firewall and strut tower. When mine wasn't working for a long time, one of the prongs had busted off not alonging continuity for the circuit.

There is an A/C fuse inside the passenger side kick panel you can check, too.

 

[born2drv]

also on the coolant knuckle or whatever it's called, there are several sensors for water temperature... one of them goes to the AC i believe.... mine had to be replaced to get the AC kicked in. the fuse in the passenger side was blown also, and there are 2 relays that are attached to a small metal mount that are bundled together that i replaced, they are located under the fuse box under the hood, they plug directly into your ac compressor, if one of those are bad it won't work. also if there is not enough refrigerant, it won't turn on.

 

[williamb82]

either you dont have proper pressure to egauge it or the pressure switches are bad or most likely, the fuse i nthe pass kickpanel, had that fuse blow on one of my old mkiii's

 

[GreenChevelleSS]

I will check the fuses, do I have to pull the kick panel off? Everything else works but the clutch on the compressor

 

[CPT Furious]

Yes, the passenger kick panel needs to be removed. Not too difficult of a task...I think it's a 10mm nut holding it in then loosen the screw or two for the glovebox and one for the door sill protector to give you room to maneuver and you should be good to go to pop it out!

 

[GreenChevelleSS]

I stuck a piece of wire in the plug from one terminal to the other on the pressure switches and that didnt engauge the clutch so Im guessing its somewhere else in the system, Still need to pull the kick panel and check those fuses tho, Thats the next thing im doing.