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HELP!! Yellow foam-like sluge in my valve cover!!!

Discussion in '1973-1991 K5 Blazer | Truck | Suburban' started by StageZ, Feb 16, 2002.

  1. StageZ

    StageZ Registered Member

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    I was told once this is caused by coolent leaking into the engine oil... is this true? I have drained the oil twice and I cant find a trace of coolent... my coolent level seems ok... does anyone know what this is? or am I gonna have to pull my maifold and heads again?
     
  2. ducati-cooter

    ducati-cooter Registered Member

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    stagez I have seen this before and yes it usually caused by coolant or water or any form uf non oil moisture getting into the oil. some older gm cars with 4 cylinders are known for this appearing on the dipstick and the oil filller cap. they say this is normal on these cars but on your I would be very suspicios of a cracked head or manifold. check for white smoke when starting and running if there is it is a indication that you are burning coolant
     
  3. jimmyjack

    jimmyjack 1/2 ton status

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    Check to be sure your PCV valve and your oil breather are working right. I had the same thing happen a few weeks ago and my PCV wasn't working. Tons of smoke was blowing out of the oil dipstick, and the dipstick looked like it came out of a milkshake.

    That jeep thing? Yah I understand it....... Like my Blazer? <a target="_blank" href=http://community.webshots.com/user/blazerk5>http://community.webshots.com/user/blazerk5</a>
    Jim
     
  4. Thunder

    Thunder 3/4 ton status

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    Do you drive your rig enough to fully warm it up ?
    Sometimes water condenses in the engine during the winter cold and just builds up. Espically if you just drive it a few miles a day around town. It doesn't mean anything is wrong.
    Take it out for a good run and see if the condensaiton evaporates. If it goes away i would not worry about it.
    Check or replace your PVC as the other post said

    <a target="_blank" href=http://coloradok5.com/gallery/Thunders-Blaze> Blazer pics</a>

    <font color=blue>Nevada... Where the pavement ends and the west begins
     
  5. nvrenuf

    nvrenuf NONE shall pass! Premium Member

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    Most likely what you've found is a "normal" amount condensation inside the valve cover. While a lot of it is not good, of course, it's not uncommon. If the motor is started and shut off a lot without long periods of operation the engine might not get (and stay) hot enough to burn off the internal condensation.

    This can be both more common and heavier on motors with aluminum valve covers. The aluminum products can "sweat" causing this.

    I'm not saying this condition is ok. You certainly want to look further and rule out any possible internal problems, especially if you find it a lot or if it gets even heavier. I'm just saying it's not as uncommon as you might think.



    80 K10 w/ 468 and 1 ton stuff
    You don't scare me, I got chunks of guy's like you in my stool!
    www.nvrenuf.fws1.com
     
  6. Can Can

    Can Can Pusher Man Staff Member Super Moderator

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    I live in small town and most of the time my engine hasn't even reached operating temp. by the time I get to where I'm going(and that's even after warming the truck up for a minute or two). After a week I get the same kind of sludge build up on the oil fill cover. Once a week my wife drives 60 miles to the city and by the time she gets back, the sludge is gone.



    <font color=red>DIGGING AND DIGGING AND DIGGING</font color=red>
     
  7. jimmyjack

    jimmyjack 1/2 ton status

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    I wouldnt really worry about a water leak then, You'd have water all thru your oil not just under your valve cover.

    That jeep thing? Yah I understand it....... Like my Blazer? <a target="_blank" href=http://community.webshots.com/user/blazerk5>http://community.webshots.com/user/blazerk5</a>
    Jim
     
  8. Can Can

    Can Can Pusher Man Staff Member Super Moderator

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    Nope, I wasn't really worried. I was just trying to give StageZ an FYI. I guess I should have been more specific......[​IMG]



    <font color=red>DIGGING AND DIGGING AND DIGGING</font color=red>
     
  9. jimmyjack

    jimmyjack 1/2 ton status

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    Canmore, that was my bad. I thought Stagez wrote the post YOU wrote! I can't help but learn some stuff here.

    That jeep thing? Yah I understand it....... Like my Blazer? <a target="_blank" href=http://community.webshots.com/user/blazerk5>http://community.webshots.com/user/blazerk5</a>
    Jim
     
  10. 76_Cheyenne

    76_Cheyenne 1/2 ton status

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    I had the same thing happen to my old jeep. I checked the compression of each cylinder to look for any cracks. It was good compression so the sludge is caused by the cold temperautre/ moisture in the air. It always went away for me in the summer. I wouldn't worry about it.

    Cowboy Up!
     

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