Running Rough
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Tuned
Joined: Oct 2001
Posts: 483
Likes: 6
From: Pelzer, SC
Running Rough
My 300 just started running rough. It feels like the fuel supply is being cut off and instantly back on. It happens while accelerating either slightly or full pedal. I have filled the tank up twice since it started with Amoco white gas and fuel injector cleaner and it ain't as bad but still it happens.
Does this truck have only the one fuel pump mounted on the frame rail?
I put on a new fuel filter.
'89 F-150 300-6 4x4 5sp. 131,000 mi.
Does this truck have only the one fuel pump mounted on the frame rail?
I put on a new fuel filter.
'89 F-150 300-6 4x4 5sp. 131,000 mi.
Thread Starter
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Tuned
Joined: Oct 2001
Posts: 483
Likes: 6
From: Pelzer, SC
Running Rough
I must have gotten a bad fill up of gas. I usually get gas at the same place, local Exxon 87 octane. Since then I have filled up twice with Amoco white gas 93 octane and one bottle of fuel injector cleaner and one quart of automatic transmission fluid. It is much better now and mpg has went up to 18. It was 15-16 mpg. Amoco white gas may be .20 cents more a gallon but it is sure worth it.
'89 F-150 300-6 5sp. 4x4 3.08 132,000 mi.
'89 F-150 300-6 5sp. 4x4 3.08 132,000 mi.
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