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Thread: Hyundai failed block test at repair shop. I want to

  1. #1
    Join Date
    Jul 2010
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    Good year Arizona
    Posts
    4

    Default Hyundai failed block test at repair shop. I want to

    Hello I want to know how to do a block test on a 2000 hyundai accent. What tools will I need and how is it done. Thank yoy Ian

  2. #2
    Join Date
    Jul 2010
    Location
    Good year Arizona
    Posts
    4

    Default block test failed

    can you tell me how to do a block test on engine.

  3. #3
    Join Date
    Jan 2007
    Posts
    4,850

    Default

    Hi Ian,

    You need a combustion leak detector - you should be able to pick one up at most any auto parts store. You fill it with the special fluid and attach it in place of the radiator cap; run the engine and squeeze the bulb on the tester. If the solution changes color, combustion gases are getting into the cooling system. Most of the time this indicates a bad head gasket, but a cracked head or cylinder block could also be the cause.

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