Stalling problem - 76 F-250
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New User
Joined: Jul 2006
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From: Show Low, AZ
Stalling problem - 76 F-250
Hi guys,<O
</O
The 390 in this 4x4 runs very smooth 99% of the time. Currently I only use this truck to haul stuff to the dump, at least till I do some upgrades to make it a bit more presentable and reliable. Anyway, the last two trips to the dump the truck it ran great for about 7 or 8 miles and once I came to a stop and let it idle for a couple minutes it died. It starts again after a couple minutes and then coughs and spits for a second or two intermittently for the next couple minutes before running smooth again. <O</O<O
I suspect a clogged fuel filter or dirt in the carb but someone mentioned that it might be the Duraspark ignition module. I'm not all that familiar with Fords so I'm looking for some help here before I tear into this thing. <O</O<O
So is it just dirt in the fuel or is this symptom of a Duraspark problem?
<O</O
Thanks in advance for your help<O</O
</OThe 390 in this 4x4 runs very smooth 99% of the time. Currently I only use this truck to haul stuff to the dump, at least till I do some upgrades to make it a bit more presentable and reliable. Anyway, the last two trips to the dump the truck it ran great for about 7 or 8 miles and once I came to a stop and let it idle for a couple minutes it died. It starts again after a couple minutes and then coughs and spits for a second or two intermittently for the next couple minutes before running smooth again. <O
</O<OI suspect a clogged fuel filter or dirt in the carb but someone mentioned that it might be the Duraspark ignition module. I'm not all that familiar with Fords so I'm looking for some help here before I tear into this thing. <O
</O<OSo is it just dirt in the fuel or is this symptom of a Duraspark problem?
<O
</OThanks in advance for your help<O
</O
Senior User
Joined: Jul 2006
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I had a 351 powered f150 a few years ago that was experiencing a similar problem. I replaced the Duraspark module and everything was fine. Mine ran absolutely perfect before and after the little problem. It would just die without warning and start up later like nothing was wrong.
Postmaster
Joined: Jul 2005
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Listed are pre checks.
I agree too, change the fuel filters, and check for any cracked or worn fuel lines.
Sometimes when a truck sits for extended periods, the gas can become old and create engine running problems.
Also check all vacuum lines, check if they are cracked or the rubber hard. Replace if as needed. Check the vacuum line to brake power booster.
I agree too, change the fuel filters, and check for any cracked or worn fuel lines.
Sometimes when a truck sits for extended periods, the gas can become old and create engine running problems.
Also check all vacuum lines, check if they are cracked or the rubber hard. Replace if as needed. Check the vacuum line to brake power booster.
Elder User
Joined: May 2006
Posts: 947
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From: Spokane, Washington
I had the same problem, except mine died while driving, so I replaced the fuel filter, cleaned the carb, and I had the lines replaced awhile ago when I first started working on the truck, also a big cause of this, is stuff built up in the gas tank(s) from sitting. My backtank I had to buy additive to break it all up and get rid of it, you might want to get some additive for the tanks if it is a dual or not and just fill it up completely, dump this in it, and you'll be good.
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Joined: Feb 2005
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I had the the same problem as brentleedragon and did everything he did but it would still die while i was driving, blowing 2 mufflers. I changed the module and the mufflers and it hasn't done it since.
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Thread Starter
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New User
Joined: Jul 2006
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From: Show Low, AZ
Thanks guys. I appreciate the insights. I'm going to change the fuel filter, install an aftermarket air cleaner assembly, replace the module and rebuild the wiring from the module to the distributor as well as replace the coil. The engine is a re-man unit from one of the local auto parts stores and is only about 3 years old but I'm quite sure all the accessories, wiring etc are vintage 1976 so it's probably about time to do this anyway.
<O
One more question. The guy at Auto Zone says I have to pull the distributor and disassemble it to replace the pickup. Is this true or was the Auto Toad blowing smoke? <O
<O
One more question. The guy at Auto Zone says I have to pull the distributor and disassemble it to replace the pickup. Is this true or was the Auto Toad blowing smoke? <O
Last edited by Junkyard Dog; Oct 23, 2006 at 07:03 PM.
