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How do you test for a blown head gasket?

Updated: 10/20/2022
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14y ago

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A visual check of the oil can tell sometimes. Oil should not look brown, milky or have bubbles in it. Sometimes excessive smoke from the exhaust can be a sign. Excessive coolant consumption and a lack in power might be another sign. Another more involved way is a compression check on all the cylinders. That will tell you if there is a leak from the combustion chamber and which cylinder/cylinders.

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Q: How do you test for a blown head gasket?
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