Milkshake on the dipstick
CF Veteran
Joined: Apr 2009
Posts: 4,734
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Year: 2015, 2012
Model: Grand Cherokee (WK2)
Engine: 3.6L
Probably won't help, dude. We're not talking about a few little drops of condensation on the dipstick. Your weather is no more variable than mine is and neither of my Jeeps nor any of my other vehicles do that.
Get ready to ****** that engine out. The damage is already done. You're just kidding yourself.
Spark plugs gotta come out anyway before you send the engine off to be rebuilt.
Get ready to ****** that engine out. The damage is already done. You're just kidding yourself.
Spark plugs gotta come out anyway before you send the engine off to be rebuilt.
Last edited by Firestorm500; Jan 21, 2014 at 10:07 AM.
Thread Starter
Seasoned Member
Joined: Dec 2010
Posts: 350
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From: Georgia, USA
Year: 1994
Model: Grand Cherokee
Engine: v8



No evidence of water under the valve cover.
Gonna check the compression in a few minutes. My tester is fubar, so I have to borrow the neighbors.
The skinny vacuum hose on the rear of the VC that goes to the Intake manifold was plugged solid.
The air filter was also oily... not sure if they are related though.
Last edited by rangermonroe; Jan 21, 2014 at 03:59 PM.
Herp Derp Jerp

Joined: Nov 2011
Posts: 18,251
Likes: 17
From: Parham, ON
Year: 1999
Model: Cherokee
Engine: 4.0L OBD-II
Yep they're directly related. Vapors are supposed to be sucked out the rear hose, if it's clogged they hit your air filter lol
Senior Member
Joined: Apr 2012
Posts: 578
Likes: 4
From: Ocean, New Jersey
Year: 2000
Model: Cherokee
Engine: 4.0
Probably won't help, dude. We're not talking about a few little drops of condensation on the dipstick. Your weather is no more variable than mine is and neither of my Jeeps nor any of my other vehicles do that.
Get ready to ****** that engine out. The damage is already done. You're just kidding yourself.
Spark plugs gotta come out anyway before you send the engine off to be rebuilt.
Get ready to ****** that engine out. The damage is already done. You're just kidding yourself.
Spark plugs gotta come out anyway before you send the engine off to be rebuilt.
Yup that is why it is called crankcase ventilation. The blowby pressure had to go somewhere like the air filter. It was supposed to go through that skinny tube and into the intake to be burned.
CF Veteran
Joined: Jan 2009
Posts: 1,964
Likes: 6
From: Baltimore, Maryland
Year: 1994 1993
Model: Cherokee
Engine: 4.0
Sometimes it is something more serious like a head or gasket leak allowing coolant in the oil but sometimes it's something as simple as your dipstick cap not fitting tightly and condensation forming in the dipstick tube and water getting in that way.
Thread Starter
Seasoned Member
Joined: Dec 2010
Posts: 350
Likes: 0
From: Georgia, USA
Year: 1994
Model: Grand Cherokee
Engine: v8
Given all the information provided by the OP so far, I think this recommendation is totally immatured and too dramatic, of course with all due respect. If it were me, I would rule out a few items before arriving at this conclusion. What is being suggested is absolutely the last resort after all tests have confirmed a fubar engine.

I already have $1600 in parts on the way from RockAuto and a machinist on retainer!
Pistons are in my kitchen sink!
Dammmit!
Not really.

I have dealt with a blown HG or two over the years and haven't had to change out all the bearings.
It is looking like this might just be due to weather and a zealous kid with a pressure washer.
No sign, whatsoever, of water on the top inside of the engine.
Thread Starter
Seasoned Member
Joined: Dec 2010
Posts: 350
Likes: 0
From: Georgia, USA
Year: 1994
Model: Grand Cherokee
Engine: v8
Compression test reveals 100-140 psi.
ETA: cold engine. spraying gasoline while cranking. Smelled like mothers kisses. (10% Ah/volume)
ETA: cold engine. spraying gasoline while cranking. Smelled like mothers kisses. (10% Ah/volume)
Last edited by rangermonroe; Jan 21, 2014 at 08:11 PM.
CF Veteran
Joined: Apr 2009
Posts: 4,734
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Year: 2015, 2012
Model: Grand Cherokee (WK2)
Engine: 3.6L
40 PSI difference between high and low cylinders is a little high.
100 PSI on at least 1 cylinder is low.
Assuming I'm interpreting your post correctly.
Water mixed with oil is a poor lubricant for the bearings.
100 PSI on at least 1 cylinder is low.
Assuming I'm interpreting your post correctly.
Water mixed with oil is a poor lubricant for the bearings.
Last edited by Firestorm500; Jan 21, 2014 at 09:42 PM.
cracked head every valve rattles oil leaks every time
with that being said I'm a bow tie fanboi
let it sit overnight and loosen the oil pan drain plug. if you get coolant you have a problem. oil floats.
with that being said I'm a bow tie fanboi
let it sit overnight and loosen the oil pan drain plug. if you get coolant you have a problem. oil floats.
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From: Lost in the wilds of Virginia
Year: 1998 Classic (I'll get it running soon....) and 02 Grand
Model: Cherokee (XJ)
Engine: 4.0


