Ford Focus Forum, Ford Focus ST Forum, Ford Focus RS Forum - View Single Post - High revs when idling, no one knows what's wrong
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Old 07-23-2012, 09:20 AM   #4
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Location: Timisoara, Romania
What I Drive: 2012 Ford Focus 1.6 TDCI

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Originally Posted by elsolo View Post
I would start pinching of vacuum hoses looking for a vacuum leak.
4 services did this, they found no leaks. it doesn't behave like a leak either, it's exactly the same every time, no fluctuation

Originally Posted by Djzx3 View Post
15.5V seems high? Should be 14v's.
Maybe the alt is over charging, and give the TB a weird voltage reading, which translates into a weird idle?
This is why I suggested you come here and ask, people here know a real lot about all this.
Welcome, and glad to see you made it over here.
thanks, it was 15.5V, now it's 14V - after i changed the alternator and battery
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