XJ XJ8 / XJR ( X308 ) 1997 - 2003

whineng and unstable rpm when ac on.

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Old 06-27-2020, 09:47 AM
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Default whineng and unstable rpm when ac on.

hello again. I'm having problem with my car the car is fine and smooth when ac is off but when I turn on the AC I hear like whine noise and the rpm is not so smooth speacily when it goes down example from 3k rpm to 1 k rpm I can see the rpm needle shaking little bit . is that serious problem? what to do ?

btw I'm running aftermarket ignition coils
2002 xj8 .

thanks.
 
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Old 06-27-2020, 09:51 AM
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could it be overcharged AC system?
 
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