A/c Problems For 1997 Dodge Neon Help!!!

I Know I Got A Leak In It, Because I Put Freon In It And A Week Later Its Gone. What I Am Trying To Do Now Is Shoot Some In It But The Compressor Won't Come And I Can't Find The Low-pressure Cycling Switch To Put A Jumper Wire On It, So The Compressor Will Come On. Can Anybody Help Me With This Please!!!

Does this help
1998 Dodge Neon A/C Low Pressure Cut Off Switch

http://z.about.com/d/autorepair/1/0/Z/2/71537350.gif

Do I Run A Wire From One Prong To The Battery, Or Is It Going To Be Two Separate Wires. One To Each Prong And Both To The Battery.

you put a paper clip across the wiring harness terminals that plug into this switch- and don't let it touch metal...

so i stick a paper clip in both sides of the harness (booth) and thats it. I don't have to hook it back up to the switch or run a wire to the battery or anything.

I did the jumper and the compressor did not come on. Is there anything else i can do to make the compressor come on.

I did the jumper and the compressor did not come on. Is there anything else i can do to make the compressor come on.

You only jump it to get the 134a to suck into the system . Put 1 can in while its jumped then remove the wire and put the plug back to the switch and see if the compressor cycles. If it does, then fill it to the proper pressure.

I had the gauges hooked up and open while i did that and it didn't suck the 134a and the compressor didn't come on. The clutch won't turn.

You are unplugging the connector from the switch when you jump it right?

And what do you mean that you had the gauges OPEN?

You are unplugging the connector from the switch when you jump it right?




Yes i am unplugging the connector,( you mean the boot that goes on the switch right).

I mean the gauges were hooked up and the 134a can hooked to the yellow hose. the low side hooked up and high side hooked up.I opened everything so if the cluth turned by the jumper it will suck in the freon.

So when you jump the low side switch the compressor does not turn. Check the fuse and relay. Unless the comp. is running it won't take the 134 you are correct. You can try jumping the high side switch also. But be careful and just see if turns. If it does the the hi side switch may be bad or you have a wiring prob. And quite possible the ac button inside the car is not working.

I might be doing the jumper wrong. What i do is put a paperclip across the prongs on the switch or stick the paperclip in the 2 slots of the clip with wires coming out of it.

You put it in the slots of the plug with the wires. And be careful not to let the paper clip touch anything,

I did the jumper right. If i jump the high side and it comes on, that means the high switch is bad. But when it does comes on when i jump it, can i leave it on long enough to put freon in or do i need to wait until i replace the high pressure switch.
How do i replace the high pressure switch when its mounted to the compressor.

Sorry to bug you so much
I do appreciate all your help though!

I've never done it by jumping the hi side. So I would replace it first then see if it turns on when you jump the low side. If it works when you jump the low side after replacing the hi you can leave the jumper in for a couple minutes to get the 134a in. The connect it back up and see if it cycles, repeat for another 1 or 2 minutes until compressor starts to cycle. Then keep checking with gauge while you fill it. I don't think jumping the hi side is safe without the proper knowledge and equipment, and would rather not recomend you do something that could hurt you.

And make sure you are connecting the can to the low side only.

go back to basics . check the fuse in place with a meter or a trouble light. also check if you have 12 volts at the plug shown. car runing, ac on, fan on high. the pressure switch will close with a can of freon and a set of gauges. one more trick swap out ac and horn relay with each other. list of things that will cause the comp not to come on.....ac dash switch, ac relay ,fuse,low press switch,high pressure switch, no voltage at comp clutch, or no ground. meter and a schematic a must to electrical work.....keep us posted