donnmcc

Let me start from the beginning so we are all on the same page.I bought a 95 4dr 4.0 5sp 4wd in great shape.The story on the motor is a friend had a 96 xj put a crate 4.0 in it,wrecked it and they bought the motor.10-15k tops and it looked it.I pulled a plug didn't look too bad little sooty.No oil in the intake,breather box,hoses,anywhere.turned over good.
They couldn't get it to fire.I bought it,got it home and started working on testing all the sensors.I had searched some sites beforehand so I was prepared.First thing I checked was the crank sensor.It was laying on the bell housing but brand new.Searched and found the bolts.Still no start.
Great guy over on NAXJA sent me a fsm and wire diagram.Found out I had no sensor ground to the ecc.There was a bare spot of wire showing on the black groundwire for the cam sensor(new).I took another piece of black wire and ran it to the negative terminal.She fired up,but ran like crap.Smelt like it too.
I should add that this jeep had sat for almost 5 years.Got a fuel filter,some lucas,some seafoam,and filled it up.I had already bought wires,plugs,cap,rotor.It still ran really bad.
Decided to double check wires and found them off.I just replaced them one at a time taking for granted they were right.Fired it up and she purred.I had one cel and it was o2 sensor.I don't have a cat so I figured that was why.
Drove it for 2500-3000 miles and I start to have a little bit of a miss while idling and cruising 55-65.It comes and goes.Left on a 45 minute drive,15 minutes driving 65-70 it starts sputtering like it's out of gas.Moving the gas pedal seems to help.Turn around and go back.
2nd new filter goes on.I shake out all kinds off rust and crud from filter.Fixed that.Drive a few days and it starts again,more often.Gets to where when about the time it warms up it starts doing it.
Go outside in the morning gonna go borrow my fuel pressure gauge that I lent out.Start the jeep and it's running good with just a little stumble now and then.Shut it off go in and fill coffee cup.Come back out and nothing.Everything works,power to the starter,power to it when key is turned.Have starter tested,it's good.buy new cables and clamps.
While this is going on I try to chase down my sputtering problem.It has a new tps,cps,cks,map.AH HA the mat sensor is all cracked,dirty and loose.AH HA the coil has cracks all over it and it's loose too.
It runs even worse now.I have a surging idle,cuts out at high rpm.The thing sounds like a diesel,spark knock would be my guess.I am going to get a fuel pressure gauge tomorrow and hope it's fuel related.I'm kinda reluctant to jump into it though,I got a feeling I need a take too.Oh yeah my fuel gauge quit working slowly.It worked at first,then it read to a half,now nothing.I even put another ground to the tank.didn't work.
So my question is, do you think it's the fuel pump?I think 5yrs of gas sitting in that tank ruined it.Now the pump is gonna go.Anybody got a tank and sending unit for sale?
Or maybe not,What do you think?

finneys98xj

I think tank/pump/sending unit

donnmcc

good place online to buy?

finneys98xj

mopardiscountparts.com

Teal96XJ

I just recently replaced my fuel pump,sending unit,and wiring harness all from the junkyard.....It cost me $30 for all of that instead of the $112 for just the pump new from Autozone......I would just do the same thing i did just make sure it's the same year and you should be fine mine has been doin good for about 3-4 month's now i saw it as if it didnt work i only lost $30 instead of $112 lol..........



G/l......

donnmcc

I checked out the price on a tank,I'll be going to the junkyard.

claygrassmann

ebay has them brand new for like 65

donnmcc

I don't mind buying a new pump.Gonna call around for tank sending unit and pump tomorrow.Keep the used pump as a spare.

how was yours running before it went out?

donnmcc

that's better than $518

matejcekautoworks

i wouldnt have suggested the seafoam, i hear alot of techs saying its bad for the sensors, jmo

donnmcc

Been out of town,finally got a chance to drop the tank.I believe I found my problem.

donnmcc

here's one just for comparison

huntingman2706217

holy crap... yeah i just priced a tank last week on ebay and the cheapest i could find was like $80 shipped to the front door... didnt think that was bad at all... better then youll find at a JY... You have fun with that now...

donnmcc

LOL,Thanks.
I got a tank here local for $50,they dropped it.
I went ahead and bought another new filter.Blew my lines out and stuck a new regulator on.I should have everything done tomorrow,I hope.
I really can't believe it ran as long as it did.Actually it still ran,just not very well.