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1997 Ford Explorer with 4.0 SOHC is flooding out at start

Work4it1,

Thanks for the previous help. I changed out the fuel pressure regulator and went to start the explorer this morning and it did the same thing and flooded out. I have to pull the fuel pump relay to burn the excess fuel then install it back in to start it. It works but what do you think it could be? The fuel pressure was 40 psi on cranking during start up. Any ideas?

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Bill George

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Posted on Aug 10, 2017

Bill George

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Faulty fuel regulator.

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Anonymous

196 Answers
Posted on Jan 08, 2009

SOURCE: 1997 Ford Explorer with 4.0 SOHC is flooding out at start

Its sounds like the fuel pressure regulator is bad locate the regulator on the fuel rail and remove the vacuum hose if there is fuel there its bad if not have some one turn the key on or crank the engine if fuel come out its bad. What seems to be happing when it sit for some time the regulaor leaks fuel by into the engine when you go to start it its just that its flooded out plus when you turn the key on and are trying to start it its now dumping even more fuel into the engine. When you remove the relay and crank it there is no fule going to the engine thus making it start.

Anonymous

196 Answers
Posted on Jan 08, 2009

SOURCE: 1997 Ford Explorer with 4.0 SOHC is flooding out at start

NO you dont have to take the intake off it should be right on the fuel rail with either 1 or 3 bolts if i remember right it will be the only thing on the rail with a vacuum hose on it.

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