Location of AC High Pressure Cutout Switch on '01 Sport?
05-07-2015, 06:50 PM
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Year: 2001
Model: Cherokee
Engine: 4.0
Location of AC High Pressure Cutout Switch on '01 Sport?
'01/4.0/Auto/2wd
Trying to troubleshoot my non-op AC compressor. Here's what I've done so far:
Engine running. Turn on AC. Result - no compressor.
Trying to troubleshoot my non-op AC compressor. Here's what I've done so far:
Engine running. Turn on AC. Result - no compressor.
1. Turned AC off. Turned engine off.
2. Disconnected harness connection from low pressure switch located on receiver/drier.
3. Inserted small gauge jumper wire in harness end of low pressure switch connection.
4. Turned engine on. Turned AC on. Result - no compressor.
5. Turned AC off. Turned engine off.
6. Disconnected power lead to compressor.
7. With key on, AC on, checked for voltage between harness end of power lead and ground. Result - no voltage.
8. Connected a wire from (+) side of batt. to compressor end of power lead. Result - clutch pulled in, but only slightly.
(Probably a weak mag coil, but still doesn't explain no voltage to compressor with jumper wire connected.)
So my next thought was to check the high pressure cutout switch...so I started looking for it...and kept looking for it...and looked up at the sky... and then back under the hood...still can't find it. Is it possible that my '01 doesn't have a high pressure switch?
7. With key on, AC on, checked for voltage between harness end of power lead and ground. Result - no voltage.
8. Connected a wire from (+) side of batt. to compressor end of power lead. Result - clutch pulled in, but only slightly.
(Probably a weak mag coil, but still doesn't explain no voltage to compressor with jumper wire connected.)
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