08-16-2010, 10:04 AM
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#1
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Bucking at low speeds?
Recently I have noticed something new with my 4runner. When I first start it up and get going the truck kinda bucks for a little while until I get going. It kinda feels like I am driving over a bunch of ruts, but its just smooth pavement. Once I get over 10 MPH it stops and gets smooth. Anyone have any ideas of what this could be? I am thinking its transmission related.
Thanks
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08-16-2010, 01:30 PM
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#2
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How does the engine sound before you put it in gear, does it have a miss? Are you 5 speed or auto?
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08-16-2010, 03:14 PM
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#3
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Its automatic, well when I start it up at first it runs fine, its just with I shift into gear that it starts up.
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08-16-2010, 04:06 PM
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#4
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How does the tranny fluid look? Is it Low? Dirty? Does it smell burnt? Maybe you just need a tranny fluid/filter change or maybe even a full flush.
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08-16-2010, 09:41 PM
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#5
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Mine does that too. Only first thing in the morning, after sitting all night. Same for you? I'm thinking flat spots on the tires from sitting all night. Then as you get rolling it smooths back out. Kinda like old bias ply tires used to do...
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1996 SR5 4Runner V6 4WD Auto
Toytec Ultimate w/ OME 890's plus 1.5" daystar spacer
60028 OME shocks, Goodyear Duratracs 265/75 -16
B&M 70268 with Magnefine filter, 199mm TBU
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08-16-2010, 10:57 PM
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#6
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Quote:
Originally Posted by kball
Mine does that too. Only first thing in the morning, after sitting all night. Same for you? I'm thinking flat spots on the tires from sitting all night. Then as you get rolling it smooths back out. Kinda like old bias ply tires used to do...
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Yea same for me, but if I leave it in a parking lot for a couple hours it dosent do it. I guess that could be it, but its kinda weird how it would just start up all of a sudden, it never did it before. Is there any reason that would happen?
Thanks
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08-16-2010, 11:02 PM
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#7
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Right, only when the tires are totally cold. Why it just started? Who knows. Maybe the tires are just getting older. Mine has done it since I bought it. Some day when I have money, I'll lift it and get different tires and see if it still does it.
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1996 SR5 4Runner V6 4WD Auto
Toytec Ultimate w/ OME 890's plus 1.5" daystar spacer
60028 OME shocks, Goodyear Duratracs 265/75 -16
B&M 70268 with Magnefine filter, 199mm TBU
236K miles
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08-16-2010, 11:08 PM
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#8
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Yea I dunno, it kinda feels like the tires have a flat spot and just as they roll it smooths out. I guess I will just have to see what happens!
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08-16-2010, 11:17 PM
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#9
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Just for a laugh if they are the same... what kind of tires do you have? I have Toyo open country h/t's
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1996 SR5 4Runner V6 4WD Auto
Toytec Ultimate w/ OME 890's plus 1.5" daystar spacer
60028 OME shocks, Goodyear Duratracs 265/75 -16
B&M 70268 with Magnefine filter, 199mm TBU
236K miles
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08-16-2010, 11:26 PM
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#10
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Firestone Destination A/T's I have less than 5k miles on them. But I abuse the hell out of them and have about 25% tread left!
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08-17-2010, 06:43 PM
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#11
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It seems to be getting worse happens almost all the time I slow down to idle now. The engine stutters, it has trouble staying on. What could be the cause of this?
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08-17-2010, 06:47 PM
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#12
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Quote:
Originally Posted by Dous
It seems to be getting worse happens almost all the time I slow down to idle now. The engine stutters, it has trouble staying on. What could be the cause of this?
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When is the last time you changed your plugs? Fuel filter?
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08-17-2010, 09:10 PM
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#13
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Quote:
Originally Posted by piperoo
When is the last time you changed your plugs? Fuel filter?
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x2
Cleaned your MAF?
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08-17-2010, 09:26 PM
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#14
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So much for the cheap easy fix... (tires) I agree, sounds like a tune up type issue.
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1996 SR5 4Runner V6 4WD Auto
Toytec Ultimate w/ OME 890's plus 1.5" daystar spacer
60028 OME shocks, Goodyear Duratracs 265/75 -16
B&M 70268 with Magnefine filter, 199mm TBU
236K miles
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08-17-2010, 11:02 PM
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#15
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Senior Member
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Senior Member
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I am changing the plugs and wires sometime next week, as for the fuel filter I dont think its ever been replaced. I will look into cleaning the MAF
Thanks
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