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2002 Chevy Silverado Lifter noise

Tiny
NYGUY
  • MEMBER
  • 2002 CHEVROLET SILVERADO
  • V8
  • 4WD
  • AUTOMATIC
  • 88,000 MILES
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.
Saturday, November 14th, 2009 AT 2:56 PM

3 Replies

Tiny
JACOBANDNICKOLAS
  • MECHANIC
  • 109,885 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.
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Monday, November 16th, 2009 AT 9:00 AM
Tiny
WILLZ06JW
  • MEMBER
  • 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
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Wednesday, November 22nd, 2017 AT 6:06 AM
Tiny
KEN L
  • MASTER CERTIFIED MECHANIC
  • 48,363 POSTS
Great addition to this thread! Please feel free to help out whenever you are on the site :)

Cheers, Ken
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Friday, November 24th, 2017 AT 6:43 PM

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