i replaced the fuel pump and no help, cracked block maybe? any advice would be great
2006-07-25 03:15:05 · 6 answers · asked by nate7799_98223 2 in Cars & Transportation ➔ Maintenance & Repairs
i replaced the fuel pump because if the diaphram on those go bad(its a mechanical type hooks to the block)they can leak directly into the crankcase
2006-07-25 14:35:25 · update #1
Sounds like a carburator float, or needle valve problem allowing gas to overfill your carburator and get into the intake and make it's way past the pistons.
My guess is that ALSO you have a problem with your fuel tank carbon filter (usualy mounted under the hood) is plugged or has a pinched breather hose causing the pressure in the fuel tank "while parked" to push the gas thru the fuel supply line instead of the breather hose.
If you had a leak as the people mentioned above, your truck would run very rich and blow black smoke while it's running.
While your engine is running, it uses up the extra gas causing a poor idle.
Do you smell gas while you're driving? (leaking fuel line)
Does it idle poorly when warmed up? (faulty carb. float, or needle)
2006-07-25 03:56:23 · answer #1 · answered by Mr. KnowItAll 7 · 0⤊ 0⤋
Sounds like you have a cracked intake manifold. Might also have bad rings or a carb problem that's causing fuel to push through the PCV valve. Start with the carb and intake. If it's a vehicle you are fixing up I'd go ahead and order a cast iron intake and 4bbl Edelbrock (weber). That will most likely fix your problem unless the engine is just shot. But I'm guessing you have a crap Holley on there and the power valve is totally gone. Good luck.
2006-07-25 10:22:37 · answer #2 · answered by jeff s 5 · 0⤊ 0⤋
Why would you replace the fuel pump? Could be a cracked intake manifold
2006-07-25 10:21:55 · answer #3 · answered by Gearhead 2 · 0⤊ 0⤋
It has a Holly carb on it (motorcraft as they say) Bad power valve. But you might as well get the carb rebuilt assuming this is not a variable venturi carb. If it is one of those trash is and get a holly 2 barrell.
2006-07-25 11:49:49 · answer #4 · answered by kingsroyal 2 · 0⤊ 0⤋
check your fuel pump regulator.it could be flooding itself.if the regulator is malfunctioning the fuel will go right by it and flood your car.
2006-07-25 10:55:21 · answer #5 · answered by Anonymous · 0⤊ 0⤋
A crack in your throttle body or carburator
2006-07-25 10:26:11 · answer #6 · answered by Vulcan 1 5 · 0⤊ 0⤋