1988 Ford F250 300 4.9L runs until it warms up then its like it has no gas getting to it spits and sputter then dies.

Asked by Fordgotmestumped Sep 17, 2017 at 07:20 PM

Question type: Maintenance & Repair

I have a 1988 Ford F250 with the 300
straight six 4.9 l I have replaced everything
distributor coil pack plugs wires injectors
fuel lines inline fuel pump in tank fuel pump
and sending unit fuel filter everything all the
sensors every sensor on the motor has been
replaced when I fire it up it shows it's
perfectly in time then it'll get warmed up and
start spitting and sputtering and dropping
RPMs I try to give it gas and it has no
throttle response at all it's like it spits and
sputters out it won't get gas and I I'm
stopped I've tried everything I've replaced
literally everything on this truck to try to fix
this problem everything everyone has told
me to and I cannot figure it out please help

586Billh answered 6 years ago

Does this truck still have the cateltic converter on it? Might want to check them when it's sputtering they might be plugged causing it to do this

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Fordgotmestumped answered 6 years ago

No its been replaced

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22,300

Guru9FSV8 answered 6 years ago

Weak relay or wiring have corrosion around box

1 people found this helpful.

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Fordgotmestumped answered 6 years ago

Brand new relays and wires going to them

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