83' F250 acceleration issues!
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83' F250 acceleration issues!
83' f250 460 4bbl. So just yesterday when I went to town I ran completely outta gas. Like sputtered and died (gas gauge don't work). Anyways after I filled it up, it ran just like normal for about 30 miles. Now it's acting weird. When I hammer the throttle from a stop, I can do a burnout, drift, you call it. Plenty of power. But when I'm on the highway and I accelerate, It falls flat on its face and sputters like it has no fuel after about 5-10 seconds of acceleration (depends on how heavy I am on the throttle) if I let off the gas and just hold speed, its fine. This happens every time I accelerate for long periods. I can recreate this effect if I put it in neutral and keep it at high rpms for 5-10 seconds. It just stops revving up and acts like it wants to rev more but not getting enough fuel. Haven't dove into the problem but fluids are all good, oil pressure is normal, new plugs 400 miles ago, new wires. I'm guessing when I ran out of gas, it sucked in junk into the fuel filter and it's limiting gas flow now? Sorry for the long post.
FTE Legend
Joined: Nov 2015
Posts: 30,912
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From: Angier, NC
That would be my guess also.
When at that I would change all the rubber gas line hose if it has not been done.
The hose can look good on the our side but falls apart on the inside and can restrict flow too.
Heck maybe look into why the gauge dose not work also
Dave ----
When at that I would change all the rubber gas line hose if it has not been done.
The hose can look good on the our side but falls apart on the inside and can restrict flow too.
Heck maybe look into why the gauge dose not work also
Dave ----
More Turbo
Joined: Sep 2008
Posts: 591
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From: Pennsylvania
Yup, probably something like that. It might be worth taking the carburetor off too and giving it a spray-down with carb cleaner just for good measure; it doesn't sound like you need to rebuild it though. There are so many tiny passages that it's possible if junk made it past the fuel filters that you have a jam in there as well. A cleaned out fuel system, maybe a new filter, and new lines like stated above is a pretty cheap fix and should solve your issue, and any issues to come. If you wanna get crazy, it may be worth dropping the tank and cleaning that out too.
Laughing Gas
Joined: Apr 2013
Posts: 1,049
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What kind of fuel pump? Mechanical or in tank electric? If it’s in tank electric maybe it’s damaged from running dry?
You can try changing the fuel filters to see if that helps. Otherwise, if it’s electric, disconnect the fuel line from the carb and run it into a gallon jug with a hose. Then disconnect and jump the oil pressure switch so the fuel pump will run with the key on with the motor not running. —> If you get significantly less than 1/2 gallon of gas in the jug in one minute then you have low flow.
On a hard pull I was running out of gas… and I discovered my old stock electric in tank pump was putting out less than 1/4 gallon a minute which is not enough to keep up with a 460.
You can try changing the fuel filters to see if that helps. Otherwise, if it’s electric, disconnect the fuel line from the carb and run it into a gallon jug with a hose. Then disconnect and jump the oil pressure switch so the fuel pump will run with the key on with the motor not running. —> If you get significantly less than 1/2 gallon of gas in the jug in one minute then you have low flow.
On a hard pull I was running out of gas… and I discovered my old stock electric in tank pump was putting out less than 1/4 gallon a minute which is not enough to keep up with a 460.
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