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Well I just hung $90 worth of parts on my truck and I guess I will be changing the fuel pump after next paycheck. I sure love my explorer, I can't wait to pay her off next month so I can sell her...

well I used a bit of time at work and ran some test on my buddies FPR on his explorer. It seems that when you disconnect the vac line the pressure on the rail should jump up about 10 PSI. Mine doesn't change at all, so I went out and bought a new FPR. I will let you all know if this solves the...

I have read about this problem but I have a 96 4.0 and it has the OHV push rod. Is it possible that this could be the problem still? How would this affect the fuel pressure at the rail? Because I had a drop in pressure when I was testing it and it started to stumble like it does. I still...

Ok went and bought a fuel pressure test gauge and hooked it up. I am running at about 30 PSI at the rail which is just a little low. While I had the gauge hooked up I pulled the vac line on the fuel pressure regulator and my fuel pressure remained the same. I hooked the line back up and a few...

HUAA! Thanks for the information. I do remeber hearing about disconnecting the vac line, but I forgot all about that. But I think from what it sounds like I'm going to have to change my fuel pump. Going to do a little reading on that then head to the auto hobby shop on base. I will let...

I'm a staff sargeant in the USAF and I have had a problem with my X stalling since about 3 months after I bought it. I thought I had it resolved as I did some sensor cleaning and swapping. I have replaced the IAC, and the EGR pressure sensor. I have cleaned the MAF, I have checked for vaccuum...

This is what you guys are refering to as a DPFE...if you click on the link you will note the it is an EGR valve pressure feedback sensor...

a scope as in an osciloscope? even if that's not what you mean, I never even thought about it, I could take my truck to work and pull an oscope out too it... just gotta convince Sgt J, don't know if he would go for that? then again, I'm not particualarly worried anylonger... changed the IAC...

thanks for the input, went ahead and checked one of the O2 sensors, the one after my cat, and it seems ok, voltage is a bit low, but with a lean condition this is what is supposed to happen I presume... I cleaned the hell outta the MAF, and the IAC checked the voltage on my MAF and it's good...

'96 XLT with DTC's P171 and P174 (running lean). My rig occasionally hesitates at idle and has trouble accelerating. I went to check the O2 sensors but am having trouble understanding the Chilton's manual. The Chilton's guide says to check the HO2S wire and Signal Return (Grnd.)The voltage...