BIGBOS

I was doing a fluids check on my car today, everything was checking out fine until I got to the oil fill cap...

I've been running a heads/cam setup for a few months now...I really haven't beaten on the car that much, it was to the track 2 times...with about 10 runs total...

I noticed about 2 weeks ago that the coolant in the radiator was low, not extremely low, but low enough to where it was noticable, it was always to the top before....also the coolant catch dipstick shows a little coolant on the end when its cold, and it barely crosses the cold marker when its warm...

Now to the oil dipstick...I pull it out, looks like the normal oil, this was after it was sitting for about 30 mins...had the blackish/brown normal look to it....now I pull the oil filler cap off and looked at the underside of it....there was a sludge of oil/coolant mixed in there in a paste type of form...also combined with a lot of condensation...there was also some of this sludge on the filler neck...maybe enough total to fill a cap of a sprite bottle...

What do you think the problem is here....if it was a bottom end problem I'm sure the oil/coolant would show up on the dipstick, its not even close to looking like the "choclate milk" color....

Any ideas on this?? <img border="0" title="" alt="[Confused]" src="images/icons/confused.gif" /> <img border="0" title="" alt="[Confused]" src="images/icons/confused.gif" />

I'm planning on throwing an ATI on my car in spring, and I don't want this problem getting in the way...

Pro Stock John

iTrader: (34)

Always tends to be little sludge on the underside of the cap.

T/ABlast69

R u running the ls6 intake? Check the Pcv check val. could bee some water just sittin in there.

BIGBOS

Yea, my car came stock with the LS6 intake, its an 01, what should I look for on or in the PCV valve? just water?

Dope

iTrader: (2)

Sounds normal to me, I have had both of these 'issues' since the car was new. The crap under the fill cap kinda looks like mold, doesn't it?

Dope

BIGBOS

It kind of looks like mold, its like a tanish color...."choclate milk"

BIGBOS

TTT

Venkman

iTrader: (4)

i also noticed some sludge pieces about half the size of a pin head on the underside of my oil cap, but the oil looks fine. Also wondering wtf this is. Cant say i have the coolant loss though <img border="0" title="" alt="[Confused]" src="images/icons/confused.gif" />

Superman

I recently changed oil on my E-250, cherokee,and the Hawk and they all had it..didn`t look like chocolate milk thou.. it was more a yellow colored sludge, the Cherokee was really bad, my fiancee drives that and most of her trips are short ...

frcefed98

iTrader: (16)

I got the same thing here, its always been that way since I've owned the car.
Must be normal then, I just glad to see others have the same thing
J

Terry Burger

iTrader: (4)

Slude = water in oil, which is pretty bad. I'd change the oil and see how long it takes to come back ASAP.

Pro Stock John

iTrader: (34)

I've seen the yellowish stuff on the underside of a few caps of different cars.

Honestly Brian after you do a new mod you like it for a week and then post up a 'is my engine falling apart' thread like this... <img border="0" title="" alt="[Smile]" src="gr_stretch.gif" />

Billy the Great

iTrader: (2)

just wait till he gets the blower john then the posts will be daily <img border="0" title="" alt="[Razz]" src="gr_tounge.gif" /> . i say as long as it isnt using oil or coolant than it is normal. i would definately get teh pcv thing checked out tho

BIGBOS

I only post when something unusual starts happening....my car was 1 pint low of coolant in the radiator, and I found sludge under the oil cap...but the oil on the dipstick looks fine, and doesn't show any signs of coolant...

I'll still put the blower on, if it blows it blows..... <img border="0" alt="[devil]" title="" src="graemlins/gr_devil.gif" />

BIGBOS

Coolant level has been good for the past few days, I'm still getting a good amount of condensation under the cap when I do short trips...

How do I know if the PCV valve is bad? I took it out of the intake and looked at it, stuck a piece of rag inside, got a good amount of black on the rag....also the idle went up crazy when I tried unplugging it when the car was running...

Ronin98Z

I noticed this years ago when i 1st got the z and drove through the winter season, i wonder if its due from condensation.

Usually this stuff seems to appear more when driving on short trips in winter weather with no chance of really opening up. Once the car is warmed up, drive it in higher rpms.

Pro Stock John

iTrader: (34)

Yup Henry, it's due to condensation.

Brian, I'd top up the coolant system and monitor it.

eallanboggs

iTrader: (1)

This didn't sound serious until you mentioned the CHOCOLATE MILK! You know the difference between sludge and chocolate milk. You better get out the compression gauge. You can live with a little sludge (very little), but milk is 80% WATER!

BIGBOS

Its more of the yellowish paste type of deal that these guys described...I assume thats the oil and water....probably water from condensation under the cap from short trips..

I've seen what the choclate milk looks like, I saw that my friends car was blowing out a lot of white smoke, so I pulled out the dipstick, and it was like choclate milk...

My dipstick, shows the normal color of oil, not any signs of water inside the crankcase...