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AC clutch won't engage

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Old Aug 19, 2012 | 12:43 PM
  #1  
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Default AC clutch won't engage

2000 Jeep Cherokee 4.0 6 cylinders

I recently changed the crankshaft position sensor, spark plugs, and fuel pump. Now that those have been changed my AC clutch doesn't seem to want to engage, and the check engine light is now on. I know that it works since I had it directly connected to the battery and it blew cold air. So that leads me to believe that there is some issue that I am not aware of.

When I had the engine codes read, the following were displayed:
  • P0132
  • P0135
  • P0141
  • P0443
  • P0705
  • P1491

I am not very knowledgeable about cars, so any feedback will be useful to me.
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Old Aug 19, 2012 | 01:14 PM
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Check the fuses in pass side kick panel there is one that makes the AC work
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Old Aug 19, 2012 | 02:28 PM
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I just removed the fuses one at a time and visually inspected them. All the fuses appear to be in good condition.
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Old Aug 19, 2012 | 02:53 PM
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pressure switch still plugged in follow ac lines from compressor to firewall
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Old Aug 19, 2012 | 03:01 PM
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Originally Posted by freegdr
pressure switch still plugged in follow ac lines from compressor to firewall
Could you put a little more detail in what exactly your trying to say. I am willing to try it just want to be clear on what I am doing.
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Old Aug 19, 2012 | 03:12 PM
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there are switchs in ac system controled by pressure high and low when doing work today maybe one got disconnected or broke ones back of compressure area other on dryer at fire wall make sure there still connected look here for pics. post n6....https://www.cherokeeforum.com/f2/ele...orking-130670/
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Old Aug 19, 2012 | 03:42 PM
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Just checked both the low/high connections they appear to be connected and in working condition.
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Old Aug 19, 2012 | 03:52 PM
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Originally Posted by nickxj94
Check the fuses in pass side kick panel there is one that makes the AC work
ok check for power at both sides of fuses
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Old Aug 19, 2012 | 04:11 PM
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one off thecodes has to do with cooling fan did you switch any relays checking fuel pump problem
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Old Aug 19, 2012 | 05:16 PM
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Originally Posted by freegdr
one off thecodes has to do with cooling fan did you switch any relays checking fuel pump problem
I was moving the relays around a lot not sure where they started any more, I have no way to really check to see which are good.

Now this check on the fuses. How would I go about doing that? Would the fuses be left in and I use a multimeter on them or should I take them out and use a multimeter.
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Old Aug 19, 2012 | 05:45 PM
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Originally Posted by Murphy!
I was moving the relays around a lot not sure where they started any more, I have no way to really check to see which are good.

Now this check on the fuses. How would I go about doing that? Would the fuses be left in and I use a multimeter on them or should I take them out and use a multimeter.
relays in pdc under hood
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Old Aug 19, 2012 | 05:49 PM
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is ther a fuse inno 25 under hood...http://www.lunghd.com/Tech_Articles/...tification.htm
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Old Aug 19, 2012 | 06:18 PM
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I was only moving around relays in the PDC not any located anywhere else. It seems I have a fuse in the location (bottom left blue fuse), pulled it out and it appears to be fine. I took a picture when I was out there looking at the PDC.

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Old Aug 19, 2012 | 06:37 PM
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Originally Posted by Murphy!
I was only moving around relays in the PDC not any located anywhere else. It seems I have a fuse in the location (bottom left blue fuse), pulled it out and it appears to be fine. I took a picture when I was out there looking at the PDC.

look under lid of pdc shoul show description of fuses...
Attached Thumbnails AC clutch won't engage-img20120819185920.jpg  

Last edited by freegdr; Aug 19, 2012 at 06:43 PM.
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Old Aug 19, 2012 | 06:41 PM
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check ifgreen on is in right...

Last edited by freegdr; Aug 19, 2012 at 06:44 PM.
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