Question about 1997 Pontiac Grand Am

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1997 pontiac grand am knoking topside, ajusted valves, replaced fuil filter, fuuil regulater, intake gasket, cleaned injecters,what eilths could it be?

Top end knoking, ajusted valves, looked at roods, good, replaced
fuil fillter
fuil regulater
air intake manifold ( planum)
cleaned injecters
re-gaped sparek pulges (60)
97 pontaic grand am
3.1 m tr60 trans

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  • jhillm5 Oct 08, 2008

    you don't adjust hyd valves, use t- to spec- 90ich. are you makeing fun, Ha lol on me, however, do you have a solution to this problem.

  • jhillm5 Oct 09, 2008

    Clarifying Question, My apologies, I have what seems to be a valve or rocker knock at start up and seems to increase at acceleration. As previous stated, I have done some diagnostic trouble shooting, and am still clueless as to what is causing this problem. If you can please help me.

  • yadayada
    yadayada May 11, 2010

    One more time is this spark knock?? was really curious about the valve adjustment, I guess you kinda did run the valves we call it in the trade.

  • yadayada
    yadayada May 11, 2010

    Do you mean spark knock?

    HOW DID YOU ADJUST THE VALVES? THEY ARE HYDRAULIC??

  • Danny Faulk Nov 01, 2012

    I'am Like Dennis, Does it knock all the time or when your driveing?

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Their's a big difference betweene a Knock & a Spark Knock !!
How many miles do you have on the engine??
It is very hard to know what you are hearing without hearing it
myself.

Posted on Nov 01, 2012

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If im correct i beleive those engines have hydraulic lifters in them. Thats probably whats making the noise. it's useless to replace them. It's not gonna affect your engines performance. just let it knock

Posted on Nov 03, 2008

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