CAN A HYDRAULIC ROLLER LIFTER RE-GAIN PRIME

  • Tiny
  • gearhead90
  • 2006 GMC Envoy
  • 108,000 miles

Slowing lose prime while engine is running & re-gain prime at restart? I have a miss in cylinder 1 and have changed the spark plugs, wires, coil pack, and even the intake gasket and still has a miss. There is a ticking noise coming from around the cylinder 1 area.

this happened just all the sudden one day while driving the car and didnt seem gradual. I have checked all the fuel injectors and they all spray fuel equally. Since it has a ticking noise could that be a lifter losing prime and worn out? Could a lifter with no prime mess the lobe up on the cam?

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Tuesday, July 24th, 2012 AT 6:21 PM

1 Reply

  • Tiny
  • ASEMaster6371
  • Expert
  • 25,556 posts

Yes to all. A lifter can collapse and pump up as well. If it is, I suggest replacing the lifter in question as it is causing an driveability issue.

Roy

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Tuesday, July 24th, 2012 AT 10:45 PM

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