Engine knocking when idling

Tiny
GALE BARBOUR
  • MEMBER
  • 2004 MITSUBISHI DIAMANTE
  • 6 CYL
  • AUTOMATIC
  • 215,000 MILES
Car seems normal while in transit, but starts knocking loud when you come to a stop. Just had major tuneup. Runs great. Engine seems very strong when driving.
Friday, December 22nd, 2017 AT 8:42 AM

1 Reply

Tiny
STEVE W.
  • MECHANIC
  • 13,002 POSTS
Put a mechanical oil pressure gauge on it and see what the oil pressure is. Knocking at idle suggests low oil pressure is letting the bearings rattle from loss of oil. What did the tune up cover? What oil was used?
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Friday, December 22nd, 2017 AT 7:21 PM

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