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A/C on/off

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Old May 30, 2004 | 05:57 AM
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mickvallis's Avatar
mickvallis
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Question A/C on/off

I have a 98 UK spec Explorer. (4.0L V6)
Whilst looking under the bonnet (sorry, hood) for any sign of a vacuum leak,
(bank running lean), I noticed the compressor clutch switching on/off at idle.
2 questions:
1. Should this be happening when the A/C is not switched on?
2. Idle speed changes when compressor/clutch activates is this normal?

It seems to switch on for a few seconds then off for 20 seconds.
Being from the UK, we rarely have to use A/C so my knowledge of it is limited.
Any help would be great.
 
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Old May 30, 2004 | 06:44 AM
  #2  
Bob Ayers's Avatar
Bob Ayers
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From: Durham, NC
Yes, the AC compressor will run in other positions besides the AC positions. The IAC will also increase the idle when the AC compressor engages, so this is normal also.
 
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