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Oil And Coolant Mixing.. 2004 5.3l Silverado
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Question
JRD761
I've got a 2004 Silverado 1500 with the 5.3L V8 engine and around 85,000 miles.
I've noticed over the past couple weeks that my coolant level keeps getting low.
I'll top it off, then in a couple days, it's back to where it was.
I don't notice it leaking anywhere. There are no drips in my driveway, I don't smell burning coolant, and I don't notice anything leaking from anywhere.
Today I checked it out a little better. I pulled off my oil filler cap, and in the plastic tube that comes from the valve cover to the oil filler cap there is a bit of cream colored sludge.
I changed my oil around 2,000 miles ago and none sludge of this was there...
I checked the oil level on the dip stick and it looked fine.. the oil didn't look dis-colored or anything, and the level is just fine.
I started up and couldn't tell if its smoking or not.. it's pretty cold out here and all cars tend to let off a little steam or something that looks like white smoke when its cold, so I can't really tell if it is smoking or not.
The truck does not overheat at all.. just sits at it's normal temperature and never goes over or under it.
First question: What do you guys think the posibilities could be? Head gasket? cracked head? something worse?
That is what is in the oil filler tube. I haven't gone further into the motor to see if there is anything elsewhere.
Second question: I saw a TSB about Castech heads having a tendency to crack on these trucks. If this is my problem, would my truck (a 2004 at 85,000 miles), be covered under some type of warranty extension because of this TSB? Or is Chevy not covering anything at all?
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