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99 expedition 5.4L-please help!

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Old Apr 8, 2017 | 09:18 AM
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Brandi Marie
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99 expedition 5.4L-please help!

Hi all! New to the forum. I recently acquired a 5.4L expy. Ran like a champ, check engine for MAF or something with aeration, low on oil but otherwise in awesome shape for a 99. Does have a modification of sorts with a flip down screen and a legit VCR under the 2nd row pass side. Anyway, dies on me on the hwy in traffic. Still had full electrical, key would turn but the starter wouldn't kick over. Got it home and changed out Idle airflow valve, and discovered a bad seal on the fuel injector In the process. Replaced that too. Ran like a champ for a week and then did it again. Tapped solenoid and got her going and home again. Replaced solenoid. Still had electrical but wouldn't kick over. Replaced the starter. Still wouldn't kick over and something shorted and we lost electrical and blew starter. Have in total replaced: idle air flow, starter solenoid, battery & terminals (had wicked corrosion), starter (twice), relay 2 and 5 inside, relay 304 fuses 111 & 113 under hood. I read somewhere else on this forum about some issue with the fuse box in models before 03. Before I spend a million fixing this thing can someone share their experience with this issue? TIA!
 
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Old Apr 8, 2017 | 02:27 PM
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Has it stalled since you replaced the idle air valve?

The next time the starter doesn't turn, put your foot on the brake and shift to neutral, then try starting it.
 
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Old Apr 11, 2017 | 07:51 PM
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Brandi Marie
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Originally Posted by alloro
Has it stalled since you replaced the idle air valve?

The next time the starter doesn't turn, put your foot on the brake and shift to neutral, then try starting it.
couldn't get it to start again. The starter we replaced it with was the wrong size, swapped it out for the right one, and got it going again but the starter wouldn't disengage once the engine fired up. Kept spinning
 
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