runs and shuts off

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Jan 21, 2006 | 10:31 PM

dirtdude007

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runs and shuts off

i have a 78 f250 with a 400 v8. the engine will run for roughly 15 minutes and right when it gets up to operating temperature she will stop running. this happened before and after getting the heads refurbished. has this happened to anyone and are there any ideas as to what it could be? thanks

Jan 21, 2006 | 11:24 PM

LxMan1

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From: Louisville,Ky.

Possibly either the ignition module, pick-up coil in the distributor or the ignition coil. I would check them in that order.

Jan 22, 2006 | 09:48 AM

dirtdude007

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i switched all of those out with parts off of other trucks sitting around my house. none of those seemed to have worked. im going to get the ignition coil tested soon so i ll let you know.

Jan 22, 2006 | 03:48 PM

stretch351c

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Joined: Sep 2004

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From: Stanton,Ne

If the coil checks out then maybe look at fuel delivery. Check to make sure your'e not getting a plug there. I had a problem with my 76. I could only run the top 1/4 tank off then it would die. It turned out to be my fuel tank was rusty inside an plugging my pickup screen and starving the motor off.