2002 Chevy Silverado Lifter noise

2002 CHEVROLET SILVERADO
88,000 MILES • V8 • 4WD • AUTOMATIC
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NYGUY
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My 2002 Silverado V-8 has a slight lifter tap upon startup if the truck has been off for over 3 or 4 hours. The noise is gone after idling for around 20 seconds. Oil pressure gauge show 40+ pounds. At no other time does the noise reoccurr.
Nov 14, 2009 at 6:56 AM
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JACOBANDNICKOLAS
  • ✓Experienced Mechanic
  • 110,240 POSTS
Make sure that the oil filter you use has an anti flowback valve. Also, there is a chance you have a lifter that is going bad and taking a while to pump up.
Nov 16, 2009 at 1:00 AM
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WILLZ06JW
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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 10:06 PM
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STRAILER
  • ✓Experienced Mechanic
  • 55,224 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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