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Engine Rattling/ Shaking When Ac Turned On

ford mondeo engine shaking

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#1 yobyde



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Posted 05 January 2013 - 11:39 AM


My ford mondeo 2005 MK2 engine shakes when i turned on the AC and does not when off.
Spark plugs was changed with new original ones. Can anyone please advice what is causing this problem?

Thanks a lot in advance.


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#2 BigD


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Posted 05 January 2013 - 10:51 PM

2005 would be a Mk3 Facelift, not Mk2.

Shaking as in "physically shaking"? Or rattling? Probably just the aircon compressor being a bit noisy. I assume the aircon works?

#3 Stoney871


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Posted 06 January 2013 - 12:28 AM

First of all welcome to the Forum.
It sounds like you have a voltage drop causing the car to lose revs, maybe you need to get your alternator or battery checked for servicability.

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