1993 Toyota 4Runner A knock in the engine

1993 TOYOTA 4RUNNER
178,000 MILES • 6 CYL • 4WD • AUTOMATIC
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EJSUTTON
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  • 2 POSTS
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
Aug 18, 2010 at 10:22 AM
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MHPAUTOS
  • ✓Experienced Mechanic
  • 31,937 POSTS
Under what conditions do you hear the knock now? all the time, under heavy load? cold? hot?

Mark (mhpautos)
Aug 18, 2010 at 10:26 AM
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EJSUTTON
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  • 2 POSTS
all the time but especially when going up a hill
Aug 18, 2010 at 10:34 AM
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MHPAUTOS
  • ✓Experienced 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)
Aug 18, 2010 at 3:01 PM
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