oil coming out of dipstick/710 cap

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Mar 27, 2014 | 03:54 PM

realmortician

Thread Starter

Newbie

Joined: Feb 2012

Posts: 13

Likes: 0

Model: Cherokee

oil coming out of dipstick/710 cap

91 laredo. Automatic. 105K miles. (original) Past 2 3 months or so, when I make a freeway run of more then 15 minutes, oil spits out of the dipstick and the valve cover is now a mess from coming out of the oil cap. CCV valve replaced 6 months ago. Sucking side suck, and the inlet side(front) seems to be in good working order as well. What's happening to my 4.0 liter? Any thoughts?

Mar 27, 2014 | 05:35 PM

Mcameron

Junior Member

Joined: Jun 2012

Posts: 41

Likes: 1

From: Massachusetts

Year: 1999

Model: Cherokee

filled with too much oil?

Mar 27, 2014 | 06:01 PM

Bustedback

CF Veteran

Joined: Feb 2010

Posts: 12,367

Likes: 23

From: Oroville, CA

Year: 1995

Model: Grand Cherokee

Engine: 4.0 with all of the noise and clatter

Pull the valve cover off and see if the oil drain back passages are clogged up with sludge.

Mar 27, 2014 | 08:02 PM

Kingfisher

Senior Member

Joined: Mar 2014

Posts: 552

Likes: 1

From: Central Indiana

Year: 1996

Model: Cherokee

Engine: 4.0

Compression getting into crankcase?

Mar 27, 2014 | 09:33 PM

DFlintstone

CF Veteran

Joined: Aug 2011

Posts: 10,489

Likes: 24

From: Nor-Cal Coast

Year: 90,84

Model: Cherokee

Engine: 4.0,2.5

That 1/2 inch tube off the front of the valve cover to the air cleaner should be relieving any crank-case pressure from blow-by. You might check that for something screwy.