Stumped and Desperate

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Jul 8, 2008 | 06:53 PM

#16

bfbiker

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Joined: Oct 2007

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Quote:

Originally Posted by roadrunner73

The truck will start and run for a while then it will die like you turned it off. Then you try to restart the truck and I got no spark coming from my coil to the distrubator. Then it will start after while.

i had a freind(yes bikers do have freinds that dont ridenot alot of them though)

but his 85 250 would do the same thing he was thinking the pump but it did it on both tanks what he found out was the key switch (he had a ton of kes on it and just lie a old harley if ya put alot of wt on the switch after a while yhe tumblers didnt go in the slots all the time and it would just shut off like it ran out of gas (just a thought if the key moves alot in the switch i would look in to that)

Jul 8, 2008 | 08:32 PM

#17

roadrunner73

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Thanks I will try that. I know my keys always falling out.

Jul 9, 2008 | 08:00 PM

#18

roadrunner73

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Joined: Jul 2008

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Not the Problem

The keys are not the problem. I really don't know where else to go from here anyone else have any ideas at all??????

Jul 9, 2008 | 08:17 PM

#19

ctubutis

Moderator

Joined: Nov 2007

Posts: 22,415

Likes: 92

From: Denver Metro Area, CO

Quote:

Originally Posted by roadrunner73

Yeah, intermittent problems like this are the hardest to troubleshoot.

So, no spark from the coil. Does the coil have power? Does the ignition module?
Obviously the answers to those questions would need to be determined when it dies.

How are you determining there is no spark coming from the coil? What methodology are
you using to determine that? What I've been taught to do is disconnect the fat wire
from the center of the distributor and hold it close to a ground while somebody cranks
the engine.

-ct

Jul 9, 2008 | 11:23 PM

#20

khadma

Carpenter Local 745

Joined: Apr 2006

Posts: 5,794

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From: on da beach

Roadrunner73,

Is your truck MPFI - or throttle body type?

NumberDummy did mention the TFI module.

Jul 10, 2008 | 03:36 PM

#21

roadrunner73

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The truck is multi-port fuel injection and the way I have been checking it is taking the coil wire to ground.

Mar 8, 2010 | 05:13 AM

#22

THE BLUE HEAP

Tuned

Joined: Nov 2009

Posts: 264

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From: Sherman Oaks California

Quote:

Originally Posted by roadrunner73

The truck is multi-port fuel injection and the way I have been checking it is taking the coil wire to ground.

Hi roadrunner73,
Did you ever find out what the problem was?
I have a 1986 E-150 302CID fuel injection EEC IV that has a cutting off, surging problem while I'm driving especialy when the weather is hot, I'm going to check the stator & distributor to see if that's the cause of my problem.

Thanks