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Why would your Ford Wind Star sound like it has a knocking valve or piston?
Ganderton
It may be a bad valve or piston, use an automotive stethoscope to track down the noise and I think you might find the noise comes from the intake manifold Ford is having a problem with the intake manifolds on Windstars and some other Ford vehicles, the internal baffle loosens and makes a knocking sound as it is moved by airflow. You will need to replace the upper intake manifold with a corrected part from Ford.
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∙ 15y ago
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