Has anyone ever had the Oil Fill cap break?
I have a '99 4.0L.
I was in the middle of doing an oil change on Friday, only to discover the oil cap won't come off. It feels like the inner "barbs" are broken/stripped so it won't lock when trying to turn it counter-clockwise for removal. It feels normal when turning clockwise.
I anticipate it will necessitate the removal of the valve cover now to get the cap out, without leaving parts inside the valvetrain?
Filling the engine with oil again through the dipstick tube was a slow and tedious process.
I have had this happen once on my wife's 2002 4.0L WJ. I'm a keyboard commando for a living, but not especially weak and I could not get this thing off with my hands.
I took a screwdriver and a hammer and gently knocked the handle counter clockwise (like I was backing it out) and the cap came free. It ended up breaking in two pieces, (the upper part that has the handle, and the inner part that screws into the cover) but the inner piece screwed out with my fingers. I just snapped the handle back in and re-installed it on my XJ, and put the one from my XJ on hers.
Originally Posted by Motorcharge
So do you actually hear your thoughts in your head or is it just sort of a dull roar before you smash your face into your keyboard and just submit whatever dumb **** ended up on the page?
Yeah it's a junk 2 piece design. All of the 4.0Ls oil caps do that. The plastic on the insides get worn out and it gets stuck in there. They should have made it a 1 piece design instead of attempting the ratcheting 2 piece crap. Just pop the top of the cap off with a pair of pliers then get a big pair of pliers and grab the bottom portion of the cap and twist it off. You can snap it back together and put it back on or replace it. I grabbed one when I was at the JY so I could have a spare when mine started doing that.
1998 Cherokee Sport 4.0L-AW4-NP231-C8.25--Black, trim removed and chopped. 31" Goodyear Wrangler Duratracs. 3" lift coming soon.
1984 Grand Wagoneer--Sold. I'll miss the old girl.
Funny thing...mine just did this yesterday too? I sadly had just drained out all the oil, and popped up top to pull off the cap. All it did was freewheel... couldn't tighten or loosen. FAIL
I popped the top half of the cap off with a wide flat blade screwdriver and the inside of the top was shredded. Not sure how this happened as you cant over-tighten these, but it did. Bad design I guess? I used some channel locks to get the bottom half out, finished my oil change and went to the store this morning to get a replacement.
SO lame...I have never had this happen on any vehicle.