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This is kind of an old bump but the saga continues. I replaced all the plugs wires rotor and cap and that seemed to fix the problem. It turns out it only fixed they symptoms as I have a cylinder that isn't firing. To top it off I pulled the plugs again today and the number one was covered in black. (these are only a couple weeks old) the other ones didn't look like this.

http://img505.imageshack.us/img505/1422/imga0069vc0.jpg

The fill cap and breather had brown sludge

http://img341.imageshack.us/img341/4017/imga0072da6.jpg

and last but not least the overflow bottle is completly foamy.


Blown HG?



WHERE DO YOU LIVE??? Is the oil stick showing overfill?
Did you install a new plug to see if IT WOULD FIRE?
The miosture in the cap is common this time of the year up north! Most folks don't take the cap off and FIND IT!
It is due to short trips and condensation forming in the top of the engine... It has happened to many vehicles for many years without bad effects. Once the engine reaches 205* for a while the moisture evaporates and no harm has been done.
THE TWO PROBLEMS are not connected.
Work on the sparky and forget about the moisture...unless you have an extra couple of quarts in the oil pan.
Big Jim <img src="/forums/images/graemlins/pfft.gif" alt="" />


I'm down in San Antonio. The only reason I think it's an HG is because all the foam and crap looking liquid in the overflow bottle.

This is a new set of plugs. The second I installed them, the jeep ran like a champ. It's starting to miss again and it seems like it's fouling the first plug.

The dipstick looks fine, IE not overfilled.

93 Wrangler
4.0L (remanufactured from S&S about 5 years ago)
Mostly stock