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1999 Mitsubishi Montero Tapping sound in engine

Tiny
BACKYARD MAN
  • MEMBER
  • 1999 MITSUBISHI MONTERO
  • 6 CYL
  • 2WD
  • AUTOMATIC
  • 80,000 MILES
My daughters Montero is making a fairly loud tapping sound, much like lifter noise. I understand that the s.U.V. Has a single overhead cam so no need for lifters but an exploded picture I viewed looked like it had some type of lifter system. How best to solve the loud tapping noise.
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Wednesday, January 23rd, 2008 AT 1:32 PM

1 Reply

Tiny
RASMATAZ
  • MECHANIC
  • 75,992 POSTS
You need to check the oil pressure-could be the oil pump is weak and the oil is not making it all the way to the head/s. When was the last oil/filter changed? This valvetrain is non adjustable you need to change the the hydraulic valve adjuster-meaning lifters/shimming discs.

Might want to try engine flush and see what happens.
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Wednesday, January 23rd, 2008 AT 2:09 PM

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