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Junior Member
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Apr 3, 2009, 06:38 PM
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Engine quit suddenly while driving, '90 Ford F-150
While driving to the grocery store tonight , my "90 F-150 abruptly quit running. As far as electrical all seems well, engine will crank, lights (headlamps, instrument) work, no warning, running adequately one second, then dead. Quarter tank of gas. Had to leave it, too dark, no flashlight. When I look at it in the morning , is there something I should check that fails this way, fuse, fusible link, ignition brain, etc? Unemployed , hoping it's a bailing wire fix. Thanks in advance, Ken
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Junior Member
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Apr 3, 2009, 08:41 PM
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Originally Posted by txgreasemonkey
Thanks TXGreasemonkey, the tests you suggested sound like a task I could do. I was trying to hear the pump, but there was a lot of background noise where the truck was parked and I couldn't hear it. The fuel filter was replaced about 2,000 miles back. I'll test the spark and the fuses tomorrow and let you know how it goes. Thanks, again
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Uber Member
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Apr 3, 2009, 08:45 PM
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Remember, even if you have spark, the ICM can be bad. It can fire but not when the ECM really wants it to; hence, spark but the engine doesn't start. I would replace both the ICM and coil, neither of which are expensive on your truck.
Many underhood fuses on trucks get awfully corroded and dirty. If a fuse doesn't work, remove it and clean it with steel wool or abrasive cloth. Look in your Owner's Manual for the location of the underhood fuel relay, if you don't hear the pump run. Remove it and clean the 5-pin connector, if necessary.
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Junior Member
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Apr 3, 2009, 08:51 PM
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Originally Posted by txgreasemonkey
Remember, even if you have spark, the ICM can be bad. It can fire but not when the ECM really wants it to; hence, spark but the engine doesn't start. I would replace both the ICM and coil, neither of which are expensive on your truck.
Many underhood fuses on trucks get awfully corroded and dirty. If a fuse doesn't work, remove it and clean it with steel wool or abrasive cloth. Look in your Owner's Manual for the location of the underhood fuel relay, if you don't hear the pump run. Remove it and clean the 5-pin connector, if necessary.
Will do, thanks again, packrat
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