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2006 Toyota Tundra Question: Humming noise



dilamo, 4.0L V6, Norman, OK, September 08, 2010, 09:53

After changing the air filter to a more expensive life time filter my truck started to make a humming noise when I would go 65mph and over. Could this be a serious problem beginning to start?

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  • Answer #1

    September 08, 2010, 10:08

    first of all, get rid of the filter. put back the replacable unit. the k/n you purchased has oil in the element that contaminates the sensors.
    the noise may be that the housing is not sealing correctly.


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