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if youre pretty sure you got the vacuum hoses are right, it may be the upper intake (plenum) gasket. did you replace the plenum gasket when you did the valve covers? if so, did you make sure to clean off ALL the old gasket material? valve covers on these engines are not easy but ill bet if you bring it to a Toyota garage, bite the bullet and spend the money for diagnosis they can figure it out in no time.

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โˆ™ 2011-09-14 08:28:50
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Q: You changed valve cover gaskets on your v6 and every sense then ive had a bad idle and take off mis their are a lot of vaccume hoses you have to take off you think you got them back right but dont kno?
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