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  1. #1

    Default Problem with Intake gasket?

    Hi guys. I was having problem with my 99 Silverado and I found these forums to see if you guys could help and have some input. There's water getting into the crankcase. In about a week's time there's a noticeable increase in fluid level. I've heard from other people that this happens alot on Silverados because of bad intake gaskets, you guys heard of this?

  2. #2

    Default

    Quote Originally Posted by markopolo311 View Post
    Hi guys. I was having problem with my 99 Silverado and I found these forums to see if you guys could help and have some input. There's water getting into the crankcase. In about a week's time there's a noticeable increase in fluid level. I've heard from other people that this happens alot on Silverados because of bad intake gaskets, you guys heard of this?
    Just did mine on our 94 burb But it had 180,000

    They go

    Is the oil milky colored?

    If so, ya you need a head gasket.

    Technology is great, when it Works,
    And one Big Pain in the Ass When it Doesn’t.
    Detroit Iron Rules, All the Rest are Just Toys.
    94 GMC Burban, 5.7L (350), 4X4, Auto
    86 GMC Burban, 350, 2 WD, Auto
    79 GMC pickup plow truck, 400, Full time 4X4, Auto
    86 Pontiac Fiero SE, 2.8L, Auto, only mid engine American car
    See a Pattern yet?

    15 year GM assembly line worker.

  3. #3

    Default

    Intake gaskets are a common problem in all GM vehicles of your vintage. Some people blame it on the Dex-Cool, some blame it on poor manifold design, and some blame it on bad gasket design. A local shop owner who does a radio show locally claims they do 10 GM intake gaskets to one of everybody elses. I've had to do the intake manifold gasket on mine. Fortunately, mine was leaking externally and didn't get coolant into the oil.

    Which engine do you have?

    Whatever it is, you need to get it fixed. Coolant is a very poor lubricant, and it won't take long to burn up the entire engine if coolant is getting into the oil.
    '98 K1500 Suburban LS 5.7 L 4L60E NV246 ARB
    '92 Ford Explorer XLT 4x4 4.0 L A4LD BW13-54 Trac-loc rear
    "My toys were the greasy cogs and springs and pistons that lay around all over the place, and these, I can promise you, were far more fun to play with than most of the plastic rubbish children are given nowadays." Danny in Roald Dahl's Danny The Champion of the World

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