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hydraulic lifter noise

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Old May 21, 2005 | 11:26 AM
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Default hydraulic lifter noise

Concerned about hydraulic lifter noise upon start-up and lasting about 8 minutes - 2000 C5 LS1 - with17K - please advise.
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Old May 21, 2005 | 12:35 PM
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Mine does that too. I think the wt. of the oil may cause this. I use 10w30 in mine and maybe 5w30 would stop this. Once the oil heats up and thins out it usually stops. Jimmy
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Old May 21, 2005 | 01:25 PM
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Almost all LS1's do this on start up. To prevent this annoyance, use the recommended oil- Mobil 1 AND use a Kand N or NAPA Gold oil filter which have the no "drain back" feature. This was the solution for me.
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