2000 Chevy Silverado clattering lifters

Tiny
KREY1348
  • MEMBER
  • 2000 CHEVROLET SILVERADO
  • V8
  • 2WD
  • AUTOMATIC
  • 11,200 MILES
My 2000 chevrolet Silverado pickup truck lifters has clattered some since new. Over years they have got louder. I use castrol 10w30 oil. I have since changed to 10w40. When I crank it, oil pressure is real good. After about 30 seconds it starts to clatter. Then it gets louder over about a 1/12 minutes. Then it subsides and goes away.
Sunday, February 21st, 2010 AT 8:49 AM

3 Replies

Tiny
JACOBANDNICKOLAS
  • MECHANIC
  • 110,176 POSTS
Is the noise heard under acceleration or heavy load?

Let me know.
Joe
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Monday, February 22nd, 2010 AT 9:40 AM
Tiny
KREY1348
  • MEMBER
  • 2 POSTS
. No, it is first thing in am when you crank it up. It last about 1 1/2 minutes then it is fine. It has got louder over the years.
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Wednesday, February 24th, 2010 AT 3:10 PM
Tiny
JACOBANDNICKOLAS
  • MECHANIC
  • 110,176 POSTS
It sounds like lifter noise. I just looked up the recommended oil weight, and it is what I thought, 5W30. 5W30 is lighter at cold start to help circulate the oil faster. That is what is recommended. I don't know the temps you live in, but if they are cool or cold, that could be the problem.
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+1
Wednesday, February 24th, 2010 AT 7:39 PM

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