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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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 5:22 PM
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MHPAUTOS
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Under what conditions do you hear the knock now? all the time, under heavy load? cold? hot?

Mark (mhpautos)
Aug 18, 2010 at 5:26 PM
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EJSUTTON
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all the time but especially when going up a hill
Aug 18, 2010 at 5:34 PM
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MHPAUTOS
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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 10:01 PM