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98' F-150 4.6 Hard start when warm

When i start the truck after it has run a while, I have to crank it several times. When I first crank, turns over no start, then turn key off, then recrank, turns over several times, starts and runs fine, runs like a dream all the time, just does this when it has been running for a while. After it cools down, it will start right up. Replaced plugs/wires (needed tune up anyways) problem was there before tune up and still remains, no change. Thanks for your help. Kevin

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sounds like your iac valve this is on the throttle body and controls idle

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SOURCE: car wont start after driving

Ignition module is the likeliest place to look.

Posted on Oct 17, 2008

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SOURCE: 95 F150 wont crank

the starter should be replaced. The solenoid is kikcing the pinion out but there is no contact being made to turn the starter motor. I have the exact same truck and before i changed the starter used the old starter tap trick. Tap the starter casing with a hammer and it should start turning again. hope this was helpful for you. Good luck.

Posted on Nov 07, 2008

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starter may be weak. usually they crank slow w/hot. i would start there.

Posted on Nov 16, 2008

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did you check the glow plug relay right on top of the engine?

Posted on Jan 06, 2009

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