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89 Ford Bronco II 2.9 When I turn on the engine there is no knocking sound but as it warms up you start to hear like someone is tapping the engine with a hammer.?
Ramit2
Sounds like you are loosing oil pressure. As the oil heats up, it looses viscosity, which in turn decreases its ability to act as a buffer between engine parts.
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∙ 15y ago
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