Question about 1999 Buick Century

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I have a 99 buick century 3.1 and it jumped time so i replaced the timing chain( and yes i lined the dots up on the gears) and while i was at it the crankshaft and camshaft sensor but it still wont start! it starts for a second the dies again. its getting fuel and spark so i kno it none of that can any1 help?

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3.1 i belive is an interferance engine
if it jump timming you would have valve damage that could make it hard start
to no start deppending on damaged to valve train
best to remove all sparkplugs and take a compression test on each cylinders

Posted on May 21, 2011

  • David Sweeney
    David Sweeney May 21, 2011

    well when it did start i didnt hear any noises coming from the valves. but im going to do the compression test and go from there. my service engine light is on but when i read it with a code reader it didnt register any codes!

  • Jeremy W.
    Jeremy W. May 23, 2011

    The check engine light will be on any time the key is on and the engine is not running. This is completely normal.

    Since you replaced crank and cam sensors have you checked to see if you have good fuel pressure and good spark?

    Ia the security Light flashing?

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Posted on Jan 02, 2017

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