2001 Lexus ES 300 Engine knocking

Tiny
STBRADLE
  • MEMBER
  • 2001 LEXUS ES 300
  • 6 CYL
  • FWD
  • AUTOMATIC
  • 74,000 MILES
Bought this Lexus about a year ago. It has always had a engine knock when slowly accelerating between 1000-2500 rpms. If I rev it strongly the noise does not occur. It definitely feels internal and is not a ticking sound, so I ruled out lifters. What do you think?
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Thursday, August 19th, 2010 AT 8:27 AM

2 Replies

Tiny
MHPAUTOS
  • MECHANIC
  • 31,938 POSTS
Possibly a bearing knock due to low oil pressure, I would have the oil pressure tested with a mechanical gauge, post reading cold idle, hot idle and hot 1500 RPM.

Mark (mhpautos)
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Thursday, August 19th, 2010 AT 8:40 AM
Tiny
STBRADLE
  • MEMBER
  • 2 POSTS
Thanks. Just teh otehr day my car wont start now. So now what do you think? I have power and the battery is fine. Starter is clicking, engine just won't turn. Thanks
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Friday, January 28th, 2011 AT 12:47 AM

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