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1987 - 1996 F150 & Larger F-Series Trucks 1987 - 1996 Ford F-150, F-250, F-350 and larger pickups - including the 1997 heavy-duty F250/F350+ trucks

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Old Oct 21, 2011 | 08:46 AM
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From: Everett Washing
died unexpectedly

hey I have a 91 f150. I was driving this morning nothing was out of the norm. I came to a stop sign and started to pull off and truck just died. now it wont start at all anyone know what may have happened my battery and all That is right. it just wont fire. it turn and turns but no start. timing chain. or something. any ideas. im on the side of the road this sucks
 
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Old Oct 21, 2011 | 08:56 AM
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Can u hear the fuel pump run when u turn the key on? my 88 did the same thing. Checked for spark and had no spark. Replaced the ignition module still wouldn't start. Went to pull a part picked up a like new coil and the relays gthat mount on the side of the air box. Got home changed the relays and its been runnin ever since.
 
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Old Oct 21, 2011 | 08:58 AM
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If u can't hear the fuel pump id say prob relays. There are two relays on is for fuel pump and the other is ignition. When mine went bad I had no fuel pump and no spark
 
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Old Oct 21, 2011 | 08:58 AM
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From: Everett Washing
not hearing the fuel pump prime the system when I turn the key that may be it
 
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Old Oct 21, 2011 | 09:41 AM
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From: Everett Washing
no spark coming through the system
 
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Old Oct 21, 2011 | 09:44 AM
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From: Everett Washing
where are these relays located
 
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Old Oct 21, 2011 | 10:25 AM
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I have a 300 6 in my truck and they were bolted on the air box!!
 
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Old Oct 21, 2011 | 11:08 AM
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Originally Posted by chard17
I have a 300 6 in my truck and they were bolted on the air box!!
No...Should be a seperate box BEHIND the airbox......Has a ford logo on it..

As for the fuel issue...Check the inertia switch...passenger side kick panel....Pull it out...and its a big red button.....
 
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Old Oct 22, 2011 | 02:16 AM
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Side winder ur thinking to new 87 to 91 only had two relays in a small box that's not marked. The 92 and newer had the ford marked box mounted separate from air box about 8 or so inches long with relays and several fuses inside it.
 
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Old Oct 22, 2011 | 02:24 AM
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Originally Posted by chard17
Side winder ur thinking to new 87 to 91 only had two relays in a small box that's not marked. The 92 and newer had the ford marked box mounted separate from air box about 8 or so inches long with relays and several fuses inside it.
Dang....Your right....Thinking cap has shrunk a tad lately....
 
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Old Oct 22, 2011 | 05:38 AM
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Originally Posted by joekacker
no spark coming through the system

Some spark check help here Part 1 -Ford Ignition Module Test. Fender Mounted Module (ICM).
 
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Old Oct 22, 2011 | 03:21 PM
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From: Everett Washing
thanks I did some more research and it seems to lead me to the icm, Im going to swap that out today and see what happens
 
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Old Oct 22, 2011 | 05:26 PM
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Originally Posted by joekacker
thanks I did some more research and it seems to lead me to the icm, Im going to swap that out today and see what happens


Be sure to apply a heat sink paste to the back of it.
 
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