460 engine issue...

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Dec 2, 2013 | 06:07 PM

2003pstroke123

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460 engine issue...

Ok first post here in need of help! I have a 1976 ford f250 with a 460 hei distributor it will start fine when cold but once it warms up it starts to miss and sputter then die. And I am unable to start up until engine is cold again..

Dec 2, 2013 | 06:17 PM

orangeford

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Joined: Aug 2000

Posts: 1,005

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From: Eastern, Idaho

Sounds like the choke is sticking shut. Check the choke flapper it should open when warm.

Dec 2, 2013 | 06:20 PM

2003pstroke123

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Quote:

Originally Posted by orangeford

Sounds like the choke is sticking shut. Check the choke flapper it should open when warm.

Got a manual choke its not sticking..

Dec 2, 2013 | 06:26 PM

orangeford

Laughing Gas

Joined: Aug 2000

Posts: 1,005

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From: Eastern, Idaho

Maybe you have a temperature vacuum switch opening to a vacuum leak when warm.

Dec 2, 2013 | 08:12 PM

PA74F250

Cargo Master

Joined: Jul 2010

Posts: 2,099

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From: York, Pa

Coil may be taking a dump.

Dec 2, 2013 | 09:05 PM

Mr7.50headsup

Senior User

Joined: Jul 2013

Posts: 225

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From: Central Florida

Its not hard to crank when hot right? Could be too advanced spark. If easy to start and won't run/stay running the other guys advice stays true.

Dec 6, 2013 | 01:08 AM

TruckNorris250

Junior User

Joined: Dec 2013

Posts: 78

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From: Frankfort/Richmond KY

It could be the coil. I had the same problem and I went ahead and replaced coil and regulator just for good measure. Haven't had a problem since!

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Dec 6, 2013 | 06:43 AM

Irelands child

Fleet Mechanic

Joined: Nov 2005

Posts: 1,899

Likes: 12

From: Upstate NY

Is it actually a TFI distributor with the module on the side or the distributor with the dreaded separate aluminum box on the fender well? Both have heat related failure problems with the separate box being the worst of the two. But with that said, it can be more inexpensively fixed. If it's that one, I can post the repair diagram and parts list.