1993 Toyota 4Runner A knock in the engine

Tiny
EJSUTTON
  • MEMBER
  • 1993 TOYOTA 4RUNNER
  • 6 CYL
  • 4WD
  • AUTOMATIC
  • 178,000 MILES
Hello, one day while I was hauling an 8ft trailor with about 15 railroad ties for a distance of about 50 miles, my 4-Runner picked up a slight knock in the engine. What could this noise signify and how much would it cost me, ballpark. Thanks so much for the help
Wednesday, August 18th, 2010 AT 5:22 PM

3 Replies

Tiny
MHPAUTOS
  • MECHANIC
  • 31,937 POSTS
Under what conditions do you hear the knock now? All the time, under heavy load? Cold? Hot?

Mark (mhpautos)
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Wednesday, August 18th, 2010 AT 5:26 PM
Tiny
EJSUTTON
  • MEMBER
  • 2 POSTS
All the time but especially when going up a hill
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Wednesday, August 18th, 2010 AT 5:34 PM
Tiny
MHPAUTOS
  • MECHANIC
  • 31,937 POSTS
Sounds like a bearing failure, pull the sump and drop the caps off the big ends and inspect the bearings, if they are ok, check main caps.

Mark (mhpautos)
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Wednesday, August 18th, 2010 AT 10:01 PM

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