fuel pressure regulator
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Joined: Mar 2002
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From: southeast,usa
fuel pressure regulator
I spent the day removing my 4.0 eng from my 93 explorer. It started making noises and the oil pressure dropped while my daughter.....the primary driver.... was driving it. The crankcase was contaminated with enough gasoline to dilute the oil enough to wipe out the crank and rod bearings. Oh how wonderful! Would the fuel pressure regulator cause the injector system to dispense too much fuel? Am I on the right track? A used engine from my local junkyard is going in this week. A regulator is a lot easier to change than an engine. Any suggestions on the engine replacement process? I plan on just replacing the oil pump and stuffing it under the hood.Sure not a lot of room next to the fenderwells. Maybe I'll sell it and try to find a '56. At least there was elbow room under the hood! thanks
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Joined: Apr 2000
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From: PNW
fuel pressure regulator
Yes, a bad regulator could cause too much fuel to be used. Also, a leaking injector could cause the same thing. While you have the engine out, I would remove the injectors and take them to a shop that can test and "rebuild" them and have them ultrasonically cleaned. It's a lot easier to get the injectors out while the engine is out than when the engine is installed.
Other things I would do is replace the rear main seal and perhaps the valve cover gaskets, depending on condition. And finally, don't mix a later year engine with 95TM or 97TM head casting numbers with your early computer. You can read more about interchangeability at this excellent link: http://www.babcox.com/editorial/ar/ar40123.htm
Other things I would do is replace the rear main seal and perhaps the valve cover gaskets, depending on condition. And finally, don't mix a later year engine with 95TM or 97TM head casting numbers with your early computer. You can read more about interchangeability at this excellent link: http://www.babcox.com/editorial/ar/ar40123.htm
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Senior User
Joined: Mar 2002
Posts: 383
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From: southeast,usa
fuel pressure regulator
Thanks Mike. I was hoping I was on the right track. All the cylinders were flooding so I figure it was the pressure. It's amazing how much damage can be done. I shouldn't have any computer problems if I stick to a 92-93 engine I don't guess. I'm just going to slap the junkyard engine in with a coursery inspection, like valve cover gaskets, rear seal and such, and put it on the road. This is a great site to turn to for help. I appreciate you taking the time to try to help me....Mike
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