02-28-2013, 11:54 AM
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#1
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Junior Member
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Join Date: May 2012
Location: BOZO MT
Posts: 3
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Junior Member
Join Date: May 2012
Location: BOZO MT
Posts: 3
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90 runner loud knocking
I've had this runner almost two years. Wasn't in good shape when I bought it, Isn't any better now. I just changed the oil and hours later I'm on my way home when my engine starts knocking. I kept driving for about 15 miles until i finally parked it, with the knocking even louder. It sounds like its coming from the bottom of my engine. I double checked and made sure everything as far as an oil change was tip-top and all seemed was in order except from underneath it looked like i sprung an oil leak. There was hardly any oil left on the dip stick. Im sure my only option is a new engine from what I hear when I start it up.
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02-28-2013, 12:46 PM
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#2
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Senior Member
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Join Date: May 2011
Location: Northfield, VT
Posts: 3,616
Real Name: Caleb
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Senior Member
Join Date: May 2011
Location: Northfield, VT
Posts: 3,616
Real Name: Caleb
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What engine transmission?
The 3.0s are known sludge builders. What kind of oil are you running?
Got a video or sound clip of the noise?
Find the source of the oil leak, and it will bring you closer to a solution. My guess is something sprang an oil leak, and if your run an engine with no oil, youre gonna have a bad day. I think you would notice if you threw a rod..
Good luck super trooper!
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92 ExtraCab on 38s: built for go, not for show
88 4runner: Solid axle, doubler, fun stuff
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Its all about the parts you break, and the friends you make.
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02-28-2013, 03:25 PM
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#3
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Member
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Join Date: Jan 2013
Location: San Francisco, California
Posts: 281
Real Name: Jerry Reed
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Member
Join Date: Jan 2013
Location: San Francisco, California
Posts: 281
Real Name: Jerry Reed
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Wheres the sound coming from?
Could be a bad rod bearing...
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03-01-2013, 01:50 AM
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#4
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Junior Member
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Join Date: May 2012
Location: BOZO MT
Posts: 3
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Junior Member
Join Date: May 2012
Location: BOZO MT
Posts: 3
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It's an automatic, been running with 5w-30.I don't think I've thrown a rod yet but the knocking is coming from the back of the bottom of my engine. When I was driving it I could really feel the knocking in the pedal when I would accelerate.
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03-01-2013, 11:47 AM
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#6
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Elite Member
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Join Date: Feb 2010
Location: Utard
Posts: 12,985
Real Name: Kevin
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Elite Member
Join Date: Feb 2010
Location: Utard
Posts: 12,985
Real Name: Kevin
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It could easily be a bolt in the torque converter. Either way, stop driving it unless you want a hole in your block.
Not that I'd know anything about that.
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'My needle always settles between west and southwest. The future lies that way to me, and the earth seems more unexhausted and richer on that side.' - Thoreau, sort of.
The Grey Bastard, 1985 4Runner, driveway ornament.
Utah DesertRunners T4R, for all things wheeling and 4Runner in Utah.
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