Question about 2002 Ford E350

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Ford e350 5.8L engine flooding out. I have tried everything and replaced the fuel filter, fuel pump, fuel regulator, Map sensor, Oil and plugs. I can start it as long as i disconnect the fuel pump and let the gas out then plug back in to keep it going. stalls when i put it in gear.

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  • Ford Master
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On the return line going back to the fuel tank,,,there is a blockage in the line,it is not returning to the tank,,check for a pinched line,the fuel pressure regulator is trying to return the fuel that is not being used,but it can not because of the restriction,now think,if the vehicle had had service,on a jack,or lift,before all this happened,and might have crushed a fuel line,either way,this has got to be the problem,the fuel can not return to the fuel tank,and the fuel pressure is forcing it threw the injectors,cause it has no where else to go,if this was AT ALL HELPFUL,PLEASE RATE,THANK YOU.

Posted on Jul 08, 2010

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Posted on Jan 02, 2017

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I have a 1997 Chevy cavalier z24 it's hard to start it and when it does start I smell raw gas I just replace spark plugs and map sensor and throttle body sensor wen put it in gear a the car die


I saw what you replaced, but, didn't see any testing? Use a gage and check proper fuel pressure. Also, see if pressure will hold for a bit, everything off. If the pressure drops like a rock, you have a fuel pressure leak. Check fuel pressure regulator vacuum line, if it has gas in it, the regulator is faulty. Could have leaking fuel injector or the fuel is leaking back through the fuel pump.
Any applicable trouble codes? To check codes yourself, at the least, you need an obd2 code reader.
Your coolant temp sensor might cause it to flood, if it is flooding? How long since a tune-up? Don't replace anything unless your testing points in that direction.
Smell of the crankcase oil dipstick, if it smells like gas, I wouldn't drive it till you fix the problem. Change oil and filter as many times as needed to get rid of the gas.

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I think you are on the right track. With the engine off remove the vacuum hose from the fuel pressure regulator and see if there is fuel in the vacuum hose or fuel is leaking from the fuel pressure regulator vacuum nipple,if so replace the regulator,check to make sure that the engine oil is not contaminated by fuel if so,change the oil and filter. Good Luck!

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