Question about 2005 Ford Taurus

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Idling problem My 2005 ford taurus has 148,000 miles on it. It has a rough idle when cold and shakes bad for awhile. When it is warmed up it runs fine. The dealer told me to change the air intake o-ring but it still runs the same. I was told a synthetic oil should be used to make it run better when it is cold. Can you please help me? thanks, Mike

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Mike,
First check for small vacuum leaks by spraying aerosol carb cleaner at any area which might leak [ie vacuum hoses] Any vacuum operated device which contains a diaphragm needs to be checked using a hand vacuum pump. Sears sells a nice one.
Also check to make sure that the purge valve for the charcoal emissions canister is not leaking when the engine is cold.
If this does not help or you find no leaks, I would strongly suspect that you have dirty and/or leaking fuel injectors. Fords are notorious for fuel injector problems. Dirty fuel injectors first show up as a problem with engine stalling or rough idling when cold. Fuel tank cleaners like Chevron Techron will sometimes work. However, the BEST way is to remove all the injectors and have them sent out to a shop with proper testing/cleaning [ultrasound] equipment. Generally, shops which specialize in diesel fuel injection have this equipment. Should cost you around $25 per injector for testing/cleaning.

Posted on Jan 01, 2012

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There are few help links with solutions to troubleshoot such idle issues.

I suggest you refer the link below and follow its troubleshooting details:------

Click the link below:-----
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1 Answer

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