1991 Acura Legend a 'rattling' noise occurs at 1,500 RPM

Tiny
2CARPROS-ARCHIVES
  • MEMBER
  • 1991 ACURA LEGEND
  • 6 CYL
  • 2WD
  • AUTOMATIC
  • 95,000 MILES
1991 Acura Legend L 3.2 V6 mileage: 95,000. For approx. 8,000 miles a 'rattling' noise occurs at 1,500 rpm-sounds like engine is a diesel. Obvious when car is decelerating or held steady at 1500, it runs fine otherwise - gets 24 mpg highway 70-75 mph. The dealer originally said it was carbon buildup and it needed GM Top Engine Cleaner. After they did treatment, car started better but noise is still there - seems to be a little louder. Dealer now says it could be rings but also says 'not to worry about it - it should be good for 200,000 miles'. Any ideas on how to come up with a better diagnosis would be appreciated!
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Friday, October 8th, 2010 AT 10:30 PM

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Tiny
2CARPROS-ARCHIVES
  • MEMBER
Check for a broken piston or wrist pin.
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Friday, October 8th, 2010 AT 10:33 PM

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