Question about 1995 Nissan Pathfinder

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Valve tick on one cylinder that tick intermitenly,thicker oil

Seems to make it worse.when its cold outside it is not as bad as when its hot outside. when i start it it usually runs for a minute or so then begins to tick intermitenly on the number 2 cylinder only.quiets once engine is kind of warm.

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  • richmondkym3 Mar 12, 2009

    should i also use a oil additive like stp or lucas oil?

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There was a "Silent Recall" for this problem. Basically the heads, lifters, and cam are all replaced. I had this fixed under the recall on 1995 Pathfinder when it had 44,000 miles on it. Now it has 175,000 and has been had the cold engine noise since 145,000. The ticking is more irritating that it is harmful (Per my mechanic). I don't want to stick 1,000's of dollars into it anymore, tolerance is much cheaper.

Posted on Jul 21, 2009

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You have a hydraulic valve lifter that is failing or plugged. You could try running a flush chemical in the engine oil just prior to changing the oil, and then using synthetic oil. This may free up the little tiny valve in the lifter and reduce the noise. At the very least, it will help prolong the life of the other eleven. It is a very big expensive job to change these because they are generally replaced as a set (12) and they are not cheap.

Posted on Mar 12, 2009

  • Dave  C
    Dave C Mar 12, 2009

    I would not use an additive, just the synthetic oil. It is far ,more stable than standard oil.

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