2006 Chevrolet Silverado lifter noise

2006 CHEVROLET SILVERADO
260,000 MILES • 5.3L • V8 • 4WD • AUTOMATIC
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TEXASDAWG2003
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  • 23 POSTS
The truck has a lifter noise at times when first starting up and will go away then will come back if you drive hard for a few miles keeps real good oil pressure was going to change lifter removed valve covers eng is vary clean on the inside found all passenger rockers clean and light in color but on drivers side the rockers are darker starting at number one cylinder and gets lighter going towards number 7 cylinder is there a problem somewhere I'm not seeing before I replace the lifters to stop the noise
Jul 18, 2014 at 11:15 AM
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HMAC300
  • ✓Experienced Mechanic
  • 48,601 POSTS
the heads have to come off to replace the lifters and it could be a bad lifter. have a pro look at it for sure
Jul 18, 2014 at 10:04 PM
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WILLZ06JW
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  • 2 POSTS
I fixed this problem on my truck by changing the Oil Pump Inlet Tube O-Ring. The lifters are the first part that don't get enough oil after this o-ring breaks down. All Chevrolet mid 2000s era 5.3L O-Ring fails around 150-190K.
Oil Pump Inlet tube O-Ring Replacement
https://www.youtube.com/watch?v=g1e3kx3mOMY
Nov 21, 2017 at 10:00 PM
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STRAILER
  • ✓Experienced Mechanic
  • 55,214 POSTS
Great addition to this thread! Please feel free to help out whenever you are on the site :)

Cheers, Ken
Nov 24, 2017 at 10:43 AM
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