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Truck shuts off when driving.

 
  #1  
Old 07-18-2011, 11:57 PM
BlackCustom77
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Truck shuts off when driving.

Hello, I have been trying to get my 1977 Ford F-150 running smooth for the last month or so. The truck keeps dying on me while I'm driving. Sometimes it wants to die and then just comes back to life as I'm driving. I have changed all the spark plugs, cap and rotor, ignition control module, ignition coil to no luck. This is driving me krazy. Any help is greatly appreciated. Engine is a 302 Automatic.
 
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Old 07-19-2011, 12:00 AM
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Fuel issue maybe. That's how cars/trucks act when they get staerrved for fuel like on corners/hills
 
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Old 07-19-2011, 12:01 AM
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Has the carb been rebuilt within the last few years?
 
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Old 07-19-2011, 12:22 AM
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thats what I thought at first, maybe fuel/carb issue, but when the truck dies. I check my fuel and its getting fuel in the carb. Acts as if its something to do with ignition. Bought the carburetor about a year ago, used but in good condition. Edelbrock 1405. The problem started about a month ago. It might need a rebuild. Thanks for the replies.
 
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Old 07-19-2011, 12:54 AM
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The tank sock on the end on the pickup tube might be getting clogged up... or maybe the fuel pump?
 
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Old 07-19-2011, 10:56 AM
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Ignition module?
 
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Old 07-19-2011, 11:15 AM
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Yeah, that's the second thing I changed. Funny thing is, the problem stopped for a couple of days after changing the ignition control module. Truck ran fine with no problems, but then it started again. I bought a rebuild kit for the carburetor. Will be my first time rebuilding one too, so I hope I know what I'm doing. I really hope that is the solution to my problem. Thanks again for the input.
 
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Old 07-19-2011, 11:21 AM
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Originally Posted by BlackCustom77 View Post
Yeah, that's the second thing I changed. Funny thing is, the problem stopped for a couple of days after changing the ignition control module. Truck ran fine with no problems, but then it started again. I bought a rebuild kit for the carburetor. Will be my first time rebuilding one too, so I hope I know what I'm doing. I really hope that is the solution to my problem. Thanks again for the input.
These two links were really helpful for me.

Motorcraft 2150 2V internal systems

http://www.therangerstation.com/tech..._2150_carb.pdf
 
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Old 07-19-2011, 12:25 PM
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Agree its usually a fuel issue. Any smoke involved ever at idle, cruise or wide open throttle? Sometimes too rich can act the same as a fuel starved carb. Like if there is an internal fuel leak or a choke that isnt working right.
 
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Old 07-19-2011, 01:10 PM
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Have you noticed if you lose all electrical when this happens?
 
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Old 07-19-2011, 11:11 PM
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i had an issue the other day with my 460. i went to leave a stop sign, it died. i thought well coil is old thats got to be the problem, replaced it, fired right up took off. got to the stop sign again and died again, well it must be the ign module, tested it and it was fine..... all i can think is it was vapor locking. ill be wrapping the fuel line with header wrap maybe that will stop it.
 
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Old 07-25-2011, 12:36 AM
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Thanks everyone for your input, I successfully rebuilt my Edelbrock 1405. After reinstalling the carburetor, it still had the same problem as before. At this time I knew it couldn't be a fuel problem. Fuel was going through the carburetor fine. Well I believe I did find my problem. It was the wire going from the ignition coil to the ditributor. PO had moved the ignition coil to the fenderwell and when I bought it a year ago I changed all the cables and had to make my own cable from the coil to the distributor. I changed the cable and now the truck has been working fine since changing out the cable. It's funny how the simplest things always seem so hard to find. At least now I know what is new and replaced. Once again, thanks everyone for helping me out.

Daniel
 
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Old 07-25-2011, 06:45 AM
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Keep detailed notes of what, how, what parts from
What year model etc and when you changed them. It will save your bacon later.
 
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Old 07-28-2011, 09:06 PM
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Well, hell. I thought I had solved my problem, but only to find out now I have another one. After the rebuilt and finding the ignition problem, now my truck is flooding at the carburetor. I have taking the top of the carburetor out to check the floats and they seemed fine. After putting it all back together, the truck seems to drive good for a couple of times and then floods again. I don't get it, I did exactly what was in the instructions of rebuilding the carb, did I miss a step? Any help with my problem is very appreciated. Just in case it's and edelbrock 1405, bought the carb used a year ago and had been running fine up until last week when I tore it down to rebuilt it. Thanks again. Floats were set at 7/16" and 15/16" per edelbrock, if there is a different setting for them please let me know. I have been online looking around and I found that the second setting is being set at 1-11/4".
Daniel
 
 
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