saylorZ28

iTrader: (6)

ok new compresser dryer and everything low pressure switch .... no juice to the compresser took it off jumped it and it kicked in put it on and no juice jumped over the low pressure swithc and the car iddles up and high speed fans kick on no compressure kickin in .... checked fuses relays all good .... am i missing something someone please help me ... its too hot for no air

txturbo

Is 12V getting to the compressor terminal?

9000th01ss

iTrader: (10)

I'm assuming you have pressure in the system right?

UAZ28SS

iTrader: (2)

Are you SURE the system has pressure? That's what my issue is... I jumped the compressor while it was on the car and it worked great. Found the leak and am going to replace the part and recharge it.

saylorZ28

iTrader: (6)

igot got everything thing down now i can jump over the relay ... and the compresser will kick on put the relay back in and nithing ... my proplem b4 was that one of the prongs was bent on the compresser and wasnt makin the circiut but now i aint getting nutin til i jump over the relay i swaped it for another and nutin still can it be my low pressure switch ?

FiredUpZ28

so.... if you jumped the relay and it worked then the low pressure switch is functioning - you just have low pressure. Sorry your posts are kinda hard to follow.

saylorZ28

iTrader: (6)

i have put three cans in it and oil it is very cold when it is on a jumped over

9000th01ss

iTrader: (10)

Yea, put everything back to normal and jump the pressure switch plug.
3 cans is too much btw.

UAZ28SS

iTrader: (2)

Sounds like you have a leak somewhere that's letting the pressure bleed off, in turn causing the low pressure switch to disable the compressor. This is EXACTLY what's wrong with my car.

9000th01ss

iTrader: (10)

There are three wires in that plug, you jumped the wrong ones.
There is no low pressure switch on a 98-02 f body. The switch on the liquid line cycles the compressor and fans on high pressure. It does provide a low pressure cut out. It's not a low pressure cycling switch like the older cars.

saylorZ28

iTrader: (6)

after i went back out i decided to put the relay back in and it freaking worked what the hell ....

BAD ASS TA WS6

iTrader: (5)

Possibly a stuck relay, or a damaged wire somwhere in your harness.

Hard to follow your posts.

And your A/C system is overcharged with 3 cans of R134a... It's not going to blow as cold as it should, and you may also damage that brand new compressor.


Next time have it charged at a reputable shop, or at least buy a manual for the car.