Question about 1999 Pontiac Grand Am GT

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Having problem putting the timing chain one and

Having problem with the timing chain
i replace the timing chain but can't seem to put the intake and exhaust and polly in sync or time b/c i start but it seem that their no spark and only hear i chain moving

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If you have a dohc quad four type engine, if you did not get the chain alignment absolutely correct, chances are that you have severe engine damage if you cranked it over. Both cam gears must be locked while putting chain on and must be perfect (not close) otherwise the first time you crank it the valves will hit the pistons. (did you get the tensioner on correctly?) Don't attempt to start it, tear it down again.

Posted on Jun 15, 2009

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Posted on Jan 02, 2017

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If you have replaced the timing chain please disregard my answer, I'm risking my rating because I want to help you for free.
If the timing chain has not been changed that the problem might be an overstretched timing chain.

As timing chain accumulate mileage, chain stretch, sprockets wear out, and set the valves off timing. Most chains go up to 100000 miles or more, but not always. As a rule when there is more than about half inch of play between the gears on a V6 or V8, it is the time for a new timing chain and sprockets.
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Intermittent backfire through the intake manifold.
Inconsistent ignition timing or a clattering noise coming from the front of the engine.
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Please do not be mad with me. I'm a certified dealer, and I'm trying to give you the necessary information to help you to deal with the problem.

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