Coolant Leak at Intake Manifold.
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5.0 and 5.7 Discussion, Coolant Leak at Intake Manifold. in Cadillac Engine Technical Discussion; I used to have an '88 Brougham with the 307 Olds engine. I am familiar with this engine's tendancy to ...
  1. #1
    ralphb is offline Cadillac Owners Member
    Join Date
    Nov 2005
    Posts
    58

    Coolant Leak at Intake Manifold.

    I used to have an '88 Brougham with the 307 Olds engine. I am familiar with this engine's tendancy to leak coolant at the intake manifold coolant crossover where it joins the cylinder head.

    I now have a '92 Brougham with the 305 Chevrolet engine. Does this engine have the same tendancy to leak coolant at the intake manifold ? If so, is the leak usually first noticed as an external leak, and is there any one place most likely to start showing a leak first ?

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  3. #2
    kdrolt is offline Cadillac Owners Member
    Join Date
    Oct 2005
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    14

    Re: Coolant Leak at Intake Manifold.

    They tend to leak where the head and intake come together near #1 cylinder and #8 cylinder. That's the driver's side front and pass side rear of the engine. It's a very common leak on a car that's over 10 years old using low-tech gaskets. HTH.

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