Thread: issues after harmonic balancer replacement

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  1. #1 issues after harmonic balancer replacement 
    SE Level Member skafreakGTP's Avatar
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    Howdy everyone i just recently replaced the harmonic balancer on my 04 gp gtp and now she cranks but wont start, before i replaced the balancer she started up in a heartbeat with no issue, any clue on whats going on here? The only thing i can think of is there might be something wrong with my crankshaft sensor? Im stuck here so any help would be very much appreciated
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  2. #2 Re: issues after harmonic balancer replacement 
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    Did you line it up perfectly with the keyway, if not timing is off and your keyway is probably fuucked
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  3. #3 Re: issues after harmonic balancer replacement 
    Killa Bee Scottydoggs's Avatar
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    if you didnt line up the key way you need t take it off again and pull out the busted key then replace it.

    why did the balancer come off in the first place?

    98 Buick Regal GS, F body brakes, Caddy STS wheels, tinted tails L36 bottom end, lightly ported heads, 1.95 roller rockers, headers, gen 5 N* 3.0 pulley, FSIC, 42 lb injectors, a BrandonHall rebuilt trans, DHP tuned and AEM water/Meth injection https://goo.gl/gpV5kW
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  4. #4 Re: issues after harmonic balancer replacement 
    I live here. 02NavyBlue's Avatar
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    Or the teeth on the balancer were bent that the crank sensor uses to determine engine speed.


    Third possibility is its not on all the way
    2006 Grand Prix GT S/C 109k - Modded Transgo Shift Kit, Gutted Airbox, Dash Cam, and Inlays. Retros soon to come.
    2002 Grand Prix GT N/A 127k - Same as 06 Plus: Trans Cooler, DIY Aux Input, LED lighting, Suspension Upgrades, Tint, Retrofits.
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