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Jul 13, 2007 | 03:41 PM

codeman4.9

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Starting Problem

I Have a 1999 f150 4x4 with a 5.4....i just bought the truck and when it has been sitting a couple hours and i go to start it it turns over more than it should before it starts. if it hasent sit long it starts fine...any ideas??

Jul 13, 2007 | 04:11 PM

KingRanchMan02

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From: Louisville, Kentucky

Welcome to FTE codeman!

Sounds like a bad IAC. Try pushing down on the gas peddle a bit while cranking the engine over. Does it start better this way? Could also have a problem with a clogged fuel filter or a leaky injector. Good luck!

Jul 13, 2007 | 04:19 PM

codeman4.9

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That Seemed to help but then agian it dident do it all the time so cant tell yet...but if it was a leacky injector wouldent it idle rough? it idles and runs just fine

Jul 13, 2007 | 05:21 PM

Ultramagdan

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From: Kansas

I had a similar problem and it was the IAC. The erratic nature is typical for a sticking IAC.

Jul 14, 2007 | 02:35 PM

codeman4.9

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k thanks for the help it has quit doin it for the past couple days so i guess ill wait till it starts agian

Jul 14, 2007 | 05:49 PM

projectSHO89

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From: St Louis

I'd be more inclined to think you've lost fuel pressure prime any you have either a clogged fuel filter or a weak pump that won't prime the system quickly.

I'd replace the fuel filter as a maintenance item anyway since you just bought the truck.

Steve

Jul 15, 2007 | 01:04 AM

codeman4.9

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changed the fuel filter today and still have the problem iam also thinking the IAC because it started to idle a little funny too.

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Jul 17, 2007 | 02:24 PM

ajbeiler

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Joined: Dec 2006

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From: Lima Ohio for college

might try cleaning the intake with a BG product. it is injected through the intake for 10 mins and cleans the intake cats and the vavles. mine ran alot better after that. it idled bad before i did it and was had on starts now she is like a new truck improved gas mileage and power. good luck bud o and i replace my plugs at 145,000 mile they were the original plug. i use autolight