cold starting trouble

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Feb 26, 2004 | 10:09 PM

Fordtruckfarmerguy

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cold starting trouble

I have a 2001 f-150 with the 5.4, 60,000 miles. When it is cold,(the engine, and air temp below 45) I have to hold gas pedal to get this engine to run. It will crank up, rev to about 1000 rpm and then cut off, will not run until gas pedal is held for about 3-5 seconds. once the engine warms up no more problems, has happened occasionaly since november, but has started to occur almost every time cold starting. No service codes. Any ideas?????

Feb 27, 2004 | 09:44 AM

LxMan1

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From: Louisville,Ky.

Welcome to FTE

I would replace the IAC (Idle Air Control). It is located on the rear side of the throttlebody elbow.
One that is sticking will act worse in cold weather.

Jimmy

Mar 4, 2004 | 07:42 PM

kenrobert

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cold start

Did this work I am having the same problem with my 97 4.6 liter. A machanic (whom i trust) told me it was lose timing chains. I would rather change a module than a chain.

Mar 6, 2004 | 09:52 PM

lallen1

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Joined: Jan 2004

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From: Moncton, NB

Cam and crank position sensors will also cause the same thing.

Mar 6, 2004 | 11:39 PM

gkbid

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From: Kansas

I agree with Jimmy. Have read lot's of threads with 5.4's that wouldn't want to idle due to worn out IAC.

Mar 7, 2004 | 11:19 AM

SMiller

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Joined: Dec 2003

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From: Kokomo

It's almost always the IAC, very commen on the 4.6s and 5.4s not that big of a deal.

Mar 10, 2004 | 02:20 AM

FordLariat

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From: pound

Yeah, the IAC is definitely what to check on that. Tap it lightly when it starts acting up, see if this helps. Cleaning it will make it last a little longer, but you may as well replace it at the next available opportunity.