Drewlee77
NAXJA Forum User
- Location
- Abilene, TX
Relevant Jeep stats: 2000 XJ Sport, 4.0 AW4, AC (of course), NO tow package, anything else?
My AC died on me.... so I took it to the shop to get fixed and they told me that the seals on my compressor had blown because the electric fan was not coming on with the AC and that was causing too much pressure in the compressor. I don't completely understand how not moving air through a radiator would cause a pressure problem immeadiately, but these guys seem to be pretty good. At least they are friendly... so unless somebody has a good reason that that can't be true I will accept it.
So they assumed that my relay was toast - but it wasn't that. The fan will turn on - so it isn't the motor on the fan (in fact, at the moment, there is a bent-paperclip jumper in place of the relay so that the fan just stays on - is this a bad idea? they didn't think so). And the truck hasn't been overheating in the least. I don't think I'll be able to afford having someone dig through the thing and search it over till they find the problem - unless it's something really simple... in which case I could probably do it. I did check the fuses - they are all fine. I don't have any wiring diagrams for this system.
My question is: What should I check next? It's not the relay, the fuses (unless there is a third one!) or the fan itself. Is there a switch on the AC that tells the fan to turn on - or is that what the relay does? btw - the relay I am talking about is in the fuse box behind the battery. I did search btw. All I found that I hadn't tried was the "diode pack"... where is this and what does it do? Also, if the fan can run fine - then it isn't the wiring right? Ok, now I'm just rambling, aren't I? TIA for any help you can give!
My AC died on me.... so I took it to the shop to get fixed and they told me that the seals on my compressor had blown because the electric fan was not coming on with the AC and that was causing too much pressure in the compressor. I don't completely understand how not moving air through a radiator would cause a pressure problem immeadiately, but these guys seem to be pretty good. At least they are friendly... so unless somebody has a good reason that that can't be true I will accept it.
So they assumed that my relay was toast - but it wasn't that. The fan will turn on - so it isn't the motor on the fan (in fact, at the moment, there is a bent-paperclip jumper in place of the relay so that the fan just stays on - is this a bad idea? they didn't think so). And the truck hasn't been overheating in the least. I don't think I'll be able to afford having someone dig through the thing and search it over till they find the problem - unless it's something really simple... in which case I could probably do it. I did check the fuses - they are all fine. I don't have any wiring diagrams for this system.
My question is: What should I check next? It's not the relay, the fuses (unless there is a third one!) or the fan itself. Is there a switch on the AC that tells the fan to turn on - or is that what the relay does? btw - the relay I am talking about is in the fuse box behind the battery. I did search btw. All I found that I hadn't tried was the "diode pack"... where is this and what does it do? Also, if the fan can run fine - then it isn't the wiring right? Ok, now I'm just rambling, aren't I? TIA for any help you can give!