salad

Fluid type, condition, and level?
Test TPS?
Adjust TV cable?

cruiser54

Fluid level and condition? Use only Dex/Merc fluid. A drain and fill is easy as there's a plug on the pan. You'll need to have about 4 quarts handy for refill.

Ever do this?


https://www.cherokeeforum.com/f2/free-quick-fix-41821/

tssguy123

No idea on the fluid. Looks like I'll be changing it out today. Anything I need to know about changing it out? Do it cold or hot or does it matter (I ask because I'm going to have to take a 30 minute drive home to do it)? I know that I need to be careful not to over-fill it. I was holding out on this because I figured if I was going to change it I may as well go all the way and change the filter too.

I've done the cable fix, and I'll look into testing the TPS.

tssguy123

So I just got home and checked the fluid... I figured out two things... there's nothing showing on the dipstick, and is the dipstick end supposed to be metal? I don't have a plastic handle, but a metal ring on the end...

And I also found this mess:



No idea what it is... or where it was coming from. Right under a hose labeled "heater" which I'm assuming refers to the heater core?

jeepindude99

Anyone know the best way to get rid of the sludge in my 4.0? I was replacing my valve cover gasket and noticed a lot of build up. I removed most of what I could get but I'm gonna change my oil too and I'm wondering if there is a certain oil I need to use or an additive that will break it down.

DieselD

Did you check it running, warmed up in neutral? If there's nothing showing on the dipstick when checked right then something is wrong.

(Even if you check it wrong I think something should show on the dipstick)

DieselD

Use a good oil and some recommend a quart of MMO (Marvel Mystery Oil). Change your oil more often.

If you want to get extreme you could add some seafoam in and run for a hundred miles then change the oil again. Or just do it right before an oil change.

Turbo X_J

"Anyone know the best way to get rid of the sludge in my 4.0?"

^
Sludge is like arterial plaque, easier to prevent than manage, change your oil every 3k. Best way to get rid of sludge is tear it down and boil it out. The cooling system can't be in much better shape either.

Outlaw Star

Diesel fuel works. Use it before you change your oil. Run engine then drain.

jeepindude99

You think it would be better if I changed the oil and put Seafoam in it, drive it a while, then change it again and use a more expensive oil?

jeepindude99

How long should I run it?

jeepindude99

I ain't got time to tear it down... This baby is my daily driver

tssguy123

I checked it maybe 10 minutes after a 30 minute drive home. In neutral. Running. I just started draining it and it's pretty dark... still able to see through a bit, though..

xjmachine

hi everyone. i have a 95 cherokee xj with a 4.0 and it recently started stalling out on me while i was driving with no warning. it just turns off and sometimes itll start right back up, or other times it will take 5 to 10 minutes, very scary on the freeway . ive been researching and everyone says its the CPS. so i changed it the other day and this morning it stalled again .i just bought the jeep and the wires plugs look brand new with one of those hi performance coils. i dont know what it could be!!! please any advice will help ! thanks

tssguy123

Cruiser said it took about 4 quarts just by pulling the plug... when I pulled the plug, I only got about 2 quarts (half gallon) out... so, not wanting to over-fill, I put in 3 quarts, then checked the dip-stick right after... and it's way over the full line. That was with the engine off though. So how should I check it to make sure I put enough/not too much in?