Starting Problem
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New User
Joined: Mar 2007
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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??
Posting Guru
Joined: Oct 2005
Posts: 2,209
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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!
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!
Hotshot
Joined: Jan 2004
Posts: 19,760
Likes: 1,079
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
I'd replace the fuel filter as a maintenance item anyway since you just bought the truck.
Steve
Thread Starter
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New User
Joined: Mar 2007
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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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Senior User
Joined: Dec 2006
Posts: 136
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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
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