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Rough idle on 2002 Ford Taurus

Tiny
COOL ON ICE
  • MEMBER
  • 2002 FORD TAURUS
My 2002 Ford Taurus has a rough idle after it has warmed up or been driven for a while. It sounds like it is going to stall and then kicks in again. After a couple minutes it will smooth out and then start all over again. Eventually it will stall. I was wondering if it could be as simple as the idle control valve?
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Friday, September 28th, 2007 AT 9:49 AM

1 Reply

Tiny
BLMO
  • MEMBER
  • 72 POSTS
Start by checking your PCV hoses. I don't know your exact engine, but I had the same problem. I changed just about everything from EGR valve to throttle position sensor, and nothing worked.

The problem was a boot-shaped PCV hose that is not visible until you remove the upper plenum. It had a large hole in it. I replaced it for $15, and it has been running like new.

Next, since it's not a cold-start problem, look at anything fuel related or EGR related, since EGR doesn't kick in for the first several minutes, and fuel reacts differently at different temperatures.

You will also need to check any temperature sensors, since they are also obviously affected by temperature.
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Friday, September 28th, 2007 AT 8:00 PM

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