1986 ford f150 4x4 302 fuel injected.

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sonofadocker - 19 Oct 2006 04:56 GMT

My truck runs poorly when it reaches operating temp and i attempt to
drive "aggressively".
The truck bucks and shutters.
My normal driving style is slow starts.
When the truck is cold it will stand still and burn rubber until i let
off the gas.

What would make the truck run poorly when it is warm and i try to go
half or full throttle from a start ?
The truck is faithful and gets 15mph snd drives fine around town and
the parkway.

I know air/fuel/electric theory. Does anyone know what to look at first
?

302 v8 fuel injected 105,000 miles

sonofadocker

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Kevin Bottorff - 19 Oct 2006 14:44 GMT

> My truck runs poorly when it reaches operating temp and i attempt to
> drive "aggressively".
[quoted text clipped - 14 lines]
>
> sonofadocker

ever put in new plugs, normal symptoms, also wires, fuel filter not quite
as likely but also possible. KB

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sonofadocker - 20 Oct 2006 00:57 GMT

Kevin,

I did the plugs yesterday and it still runs crappy when warm.
I was waiting to do the plug wires, cap & rotor.
The fuel filter is easy to reach. It is under the drivers frame rail.
I was curious if someone else with a 302 had the same problem

Thanks

Sonofadocker.

> > My truck runs poorly when it reaches operating temp and i attempt to
> > drive "aggressively".
[quoted text clipped - 17 lines]
> ever put in new plugs, normal symptoms, also wires, fuel filter not quite
> as likely but also possible. KB

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southerncomfort - 20 Oct 2006 14:22 GMT

Had exact same truck and problems. Found to be what passes for a computer
module controlling fuel injection. I tried a bunch of other stuff such as
cold air sensor etc. Break down and spend $65.00 at Ford for a computer
diagnosis. Will save you a lot of grief and money.

>Kevin,
>
[quoted text clipped - 12 lines]
>> ever put in new plugs, normal symptoms, also wires, fuel filter not quite
>> as likely but also possible. KB

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