Question about 1998 Chevrolet Tracker

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91 gmc tracker knocking

After replacing the head we now have a knock right when you start up, and under load. Any ideas to, if its a bearing what ones it could be?
I had to replace the head due to a bad cam, it was easier to do the whole head than just the cam.

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  • The Rooke Sep 09, 2009

    it had pretty fresh oil in it pre fix, and im just about to re change it now. Ill also do a oil presh test. Ill let you know
    thanks

  • The Rooke Sep 09, 2009

    I should have had it planed. but the GF cant really afford too much right now so i just put er on. However if the head was warped would i not just get bad compression or water in oil, oil leak, ect?
    And i did lots with the timing. Then used my light again to put it right, never helped tho retarding it made the knock worse.

  • Efstathios Govas May 11, 2010

    did you change the oil before u started it after the head job,or since then??

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Well the oil should have been changed right when the head job was done before start up,even if the antifreeze is drained before you started removing the head..sometimes you still get a little antifreeze in the oil and it sits in the bottom of the oil pan and is the first thing to be sucked up into the oil pump,when u do change the oil check the oil filter when u remove it for any trace of silver or gold particles...that will let u know if the bottom end was damaged at all,hope this helps

Posted on Sep 10, 2009

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Was the head planed? if so try hightest gas or ****** the ignition timing a bit.

Posted on Sep 09, 2009

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1998 gmc jimmy is knocking


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You can further pinpoint this knock by defining if it occurs occasionally, constantly, just at a specific RPM, or only under a load.

What kind of a knock is it? Hi-pitched or low-pitched?

A more detailed problem description would yield you a more specific/helpful answer.

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