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Old 01-18-2012, 10:54 PM
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Stumped need some help

Just picked up a 95 jeep wrangler Rio Grande 2.5L 168000 miles and got a problem.
The people I bought it from didn't take great care of it so i started cleaning it up today and found this...

Seems to be white/tan gunk build up right below the vent for the valve cover pipe on the air box.

First thought was cracked/warped head or head gasket.

Started looking at everything else:
Oil is black!!!! but not milky
coolant is green just like out of the bottle.
Stuck my finger in the valve cover (engine off) and no milky oil
Stuck my little finger into the tube leading into the air box, right over the glob, and nothing but a little oil in there
runs and idles great

And by the way drove it 250 miles home, never overheated 60 65 mph all the way

Been working on and building jeeps for the last 15 years but never seen this
Have had my share of Cherokees and CJs but never a wrangler nor a 4 cyl

Any help would greatly be appreciated
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Old 01-19-2012, 03:44 PM   #2
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looking like you need a new ccv or pcv valve...whichever one your jeep is fitted with...

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Old 01-19-2012, 05:56 PM   #3
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X2 on the ccv. The grommet for the other line on the valve cover has the orifice for the ccv system. Pop the line out and check to see if the hole in the grommet is plugged. You can clean it with a paper clip or small screwdriver.
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Old 01-19-2012, 07:11 PM   #4
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Temp change?

Have you had a big temp change outside lately? I could be moisture in the breather system? Maybe a couple of short runs before letting it sit over night? it looks like moisture mixed with oil to me. FYI
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Old 01-19-2012, 07:38 PM   #5
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it might have been sitting for a while and you probably blew some moisture out of the crankcase on your drive home thru your bad pcv valve

or one of the 4 squirrels threw up...
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Old 01-27-2012, 01:26 AM
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Thanks guys i will try and check that out. I think I might have blown out some moisture because I just changed the oil and coolant and air filter, it has yet to do it again.
Thanks Again
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Old 01-28-2012, 11:49 PM   #7
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Tips from the beas

This is condensation build up. But your's looks rather serious. A little spot of oil there is normal. Has the engine been sitting long?

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