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finback670
New User
Sep 29, 2010, 9:02 AM
Post #1 of 2
(1577 views)
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loud tapping 3.1L
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Hello! This is my first post. I have a 1997 Chevy Lumina 3.1L with about 100K miles that is making a load tapping noise in the top of the engine. It has happened before intermittently but hasn't done it it months...until now. There is also noticable power loss (feels like it's choking out) when driving. I have an audio clip of the noise that I would be happy to post if possible or email to anyone who would like to give a listen. Thank you.
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Hammer Time
Ultimate Carjunky
/ Moderator
Sep 29, 2010, 10:05 AM
Post #2 of 2
(1568 views)
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Re: loud tapping 3.1L
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About all we can tell you is that there is some kind of problem in the rocker system. You're really not going to know anything until the cover is removed and it's inspected. You could have broken rockers, bad push rods, broken valve springs, etc.
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We offer help in answering questions, clarifying things or giving advice but we are not a substitute for an on-site inspection by a professional.
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