misfire on piston the number 3

2001 BUICK REGAL
160,000 MILES • 3.8L • 6 CYL • 2WD • AUTOMATIC
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RUDY26A
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So far I have done and oil change ,change the air filter and the spark plug and wires
Oct 14, 2014 at 7:03 PM
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SQM
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Hello,

It sounds like the issue could be a faulty ignition coil or the ignition control module. It could a bad connection from the coil to the wire as well.
So do a thorough inspection for any corrosion or debris.

I have attached the diagram that shows which is the coil for the cylinder number 3.

Please let me know of any questions.
Thank you.

https://www.2carpros.com/articles/how-to-test-an-ignition-system
Oct 17, 2021 at 7:24 PM