[mudb8]

Originally Posted by Unlimited04

well, went wheeling & snow bashing...trans was around 130-170*F most of the time...then all the sudden:




Put it in Neutral and let it idle. Crawled under there...definitely not 360*F. Sensor was covered in muddy water, which tells me its grounding out through the water somehow. Looks like I definitely need to shrink wrap it or something.

call vulcan and ask them for recomendations.... I haven't had any complaints or results like that. the bad boy diesels are spending time on the track tho, not the mud pits..

[brunosplace]

I had the same problem with mine, here is what I found. Moisture/corrosion would create a path from the crimp connector on the wire to the outer grounded surface of the sensor. Clean it up, put dielectric grease on it, then take a plastic screw cover and cut the top cap off of it and flip the bottom piece over the sensor to cover the upper crimped edge of it.

Here is a pic of the screw cover: (I think I picked them up at Home Depot)

[Unlimited04]

Originally Posted by brunosplace

I had the same problem with mine, here is what I found. Moisture/corrosion would create a path from the crimp connector on the wire to the outer grounded surface of the sensor. Clean it up, put dielectric grease on it, then take a plastic screw cover and cut the top cap off of it and flip the bottom piece over the sensor to cover the upper crimped edge of it.

Here is a pic of the screw cover: (I think I picked them up at Home Depot)

awesome idea. I figured out that grouding path like you described and wrapped some electrical tape around the sensor, encompassing the wire, crip and all. I went to the car wash to test it out, soaked the sensor with the pressure gun, and it still works great.

[Unlimited04]

regular maintenance turned into a disaster

Oil cap plastic guts exploded-


This is stuck in the valve cover-


Picked up a new cap from the dealership....something so simple turns into a mess.

Not my day today...gonna stay away from all tools and mechanical instruments.

[dbbd1]

Originally Posted by brunosplace

I had the same problem with mine, here is what I found. Moisture/corrosion would create a path from the crimp connector on the wire to the outer grounded surface of the sensor. Clean it up, put dielectric grease on it, then take a plastic screw cover and cut the top cap off of it and flip the bottom piece over the sensor to cover the upper crimped edge of it.

Here is a pic of the screw cover: (I think I picked them up at Home Depot)

I have a bunch of these (white though) if anyone wants some.

[timritchieblue]

Originally Posted by Unlimited04

regular maintenance turned into a disaster

Oil cap plastic guts exploded-


This is stuck in the valve cover-


Picked up a new cap from the dealership....something so simple turns into a mess.

Not my day today...gonna stay away from all tools and mechanical instruments.

mine got stuck on, had to pry it off. after that i super glued the crap out of it. no more ratching oil cap

[Unlimited04]

Originally Posted by timritchieblue

mine got stuck on, had to pry it off. after that i super glued the crap out of it. no more ratching oil cap

i don't understand why there is even a ratchet mechanism in the oil cap...what critical purpose could it serve? Wouldn't it be cheaper and easier just to write on the cap - do not overtorque?

[timritchieblue]

one would think? i dont understand why, except they prob. make alot of $$$ on it breaking.

[marylandjeeper]

Mine has been like that since I got my jeep...I just use channel locks to get it off/on.

[roadkill]

I used an oil filter wrench on mine when it did that. I have one that's a rubber strap and was able to grab that little piece and twist it loose. I then put the two pieces back together and have been ok ever since. I guess I need to get a spare cap for the time it decides to blow up in my hand

[Unlimited04]

It was no problem for channel locks and the new cap is on....its just one of those Jeep things that makes me wonder WTF the engineers were thinking....

I could never design vehicles. They would be entirely too function, too reliable, too easy to work on yourself and would simply make too much sense.

[Russ Chung]

the next time the Jeep Engineers have a Q&A on Jeep Forum, we have to ask them why the engine oil filler cap has a ratcheting mechanism. What were they thinking???

[Jebussaves0]

Remember, especially with vehicles, engineers have to assume that their average consumer isn't going to know diddly-squat about automobiles (even something as simple as an oil filler cap). If they were to do as you say and put a "DO NOT OVER-TORQUE" label on the cap, some dumb blonde would go and break it and sue Jeep claiming "over-torque" was a technical term she shouldn't need to understand.

The real question we should be asking is why did they make a ratcheting mechanism that breaks so easily. Personally, I couldn't give two ****s if it's ratcheting... just so long as it works

[MisterO]

Originally Posted by Unlimited04

regular maintenance turned into a disaster

Oil cap plastic guts exploded-


This is stuck in the valve cover-


Picked up a new cap from the dealership....something so simple turns into a mess.

Not my day today...gonna stay away from all tools and mechanical instruments.

haha my old TJ did that every time i would try to change the oil when the engine is hot so i used to start every oil change with a channel lock in hand..
i would pry the top of the stupid ratcheting cap off and turn the underneath part with the channel lock.. became part of the oil change

oh and about the jeep engineers thingy i guess we can put that on the list of stupid design ideas like torx bolts and 42RLE behind the 4.0..lol

[Unlimited04]

Score! Got a Jeep load of stuff cheap at the U-pull-it



1999 Non-Disco HP D30, with steering and LCA's still attached - will get cleaned, trussed & rebuilt with 4.88s/TrueTrac
CJ7 tailgate - for future camping trailer
Ford Explorer roof rack - for the hard top
Seat is a leather rear out of a ZJ (COLOUXJ's)