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Mod | | | Forums66 Topics128,036 Posts1,055,458 Members48,422 | | Most Online14,466
Apr 26th, 2026 | | AD Chevy Trucks  Over 6,000 pictures Brad Allen has an awesome collection of Chevrolet factory pictures that he has set up from film strips. Check them out!
Lots of work on Brad's part ... pure enjoyment (and references) for you!
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For helping keep this great
old truck web site
on the Internet for over 30 years! and not clogged down
with Ads!  Again, thanks!
| | | | Joined: Mar 2002 Posts: 9,115 'Bolter | | 'Bolter Joined: Mar 2002 Posts: 9,115 | A rod knock has a hard metallic ring to it. They can usually be demonstrated by giving it a tap on the gas pedal. As the RPM peaks and the rod goes off load, it will rattle if it has a problem. Some motors will exhibit a rod knock on start up until pressure is established. Sometimes this is noticeable after a new empty oil filter has been installed. | | |
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