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Chrysler 300 5.7 Hemi knock

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Old 03-05-2020 | 01:02 PM
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Default Chrysler 300 5.7 Hemi knock

I replaced all of the lifters on the 5.7 due to knocking. Found camshaft lobe completely destroyed. Install new camshaft and all new lifters. During idle or acceleration there is still a loud knock noise. As soon as you are cruising and MDS kicks on all of the noise goes away. It runs as quiet as a mouse. Any ideas
 
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Old 03-05-2020 | 02:09 PM
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Recheck your valve gear, specifically on cylinders 1, 4, 6 & 7. If the noise goes away when MDS engages it's something with one of those cylinders.
 
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Old 03-05-2020 | 02:19 PM
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What is a valve gear?
 
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Old 03-05-2020 | 06:23 PM
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Really? All the stuff related to the valve train...did you do this yourself?
 
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Old 03-11-2020 | 01:46 AM
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Did you do a throttle, crank and cam re-learn?
 



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