'06 grand cherokee tan goop in oil fill
just changed the oil in my '06 grand cherokee 3.7 v-6 w/ 89000 miles. drained the oil, changed the filter, the oil was just dirty, exactly what you would expect. opened the oil fill to refill w/ oil, found a lot of a tan type of sludge on the cap as well as in the oil fill housing. did a little more looking, found the pcv valve stuck, replaced the valve, seems to be better.
I have always had a little tan film on the cap when I changed the oil since day one, however this time there was a lot, enough that I needed to scrape it off the cap and wipe it out of the fill. the coolant level in the recovery tank is fine, not low.
Is this just a case in which the pcv valve was not able to remove the moisture from the crankcase and it built up in the highest point in the system? as I said, the oil I drained was normal, not milky at all. Also, is this a common problem w/ these models? Have not found this problem here in the forums.
Also, found that the oil fill cap is really hard to open when changing the oil, found that the o-ring on the cap gets dry, thus making it hard to open and close. I took a little grease and lubed the o-ring and now it opens and closes easily