Thread: My Grand Prix cranks, but doesn't fire

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  1. #1 My Grand Prix cranks, but doesn't fire 
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    Sorry to just join and ask a question, but there's nobody else who can guess what's wrong with my car

    Was just driving down the road a few days ago when it just started sputtering and idling really rough at around 500RPM. I couldn't get it to go fast enough to get off the shoulder, then it just died and refused to start. Still nothing, I turn the key, it cranks, it's trying to start, but it just won't fire...

    So far I've tried switching out all of the coils, the fuel filter and the ignition control module with no luck. I can't tell if there's fuel pressure now either, but there definitely was when I pressed on the Schrader Valve so I could replace the filter. We did actually notice that apart from one of the heads on the 2/5 coil that one of the wires is rusted and doesn't click in to place like the rest do.

    Do any of you guys think that a faulty wire could ever cause my car to sputter out and die? Is there anything else (fuel pump?) that could make it do this? I'm not that great with cars, TBH I'm pretty much at my limit of what I think I can replace hahaha XD
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  2. #2 Re: My Grand Prix cranks, but doesn't fire 
    Moderator dsmuts's Avatar
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    Check and see if there is fuel pressure and see if there is spark and if it doesn't have one or the other it won't start. Pull a plug out and leave it in the boot and lay it against the exhaust manifold and see when your cranking if there is spark or not.
    98 GTP modded 1.9's, sd headers, 3.4", zzp 1.0 230K miles scrapped.
    04 Comp G zzp stb's, UMI ta's, Speedbuilt sways, bully flo heads, XP, zzp headers, fsic, thrasher shift kit, 60#, 2.6" corsa 2.5", Inferno hood
    01 gt z7 turbo tep trans zzp motor
    08 g8 gt cam exhaust 11.87@118
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  3. #3 Re: My Grand Prix cranks, but doesn't fire 
    Turbo is the way to go. BillBoost37's Avatar
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    I'm thinking this is likely a bad maf. Unplug the maf and use some throttle to try and start the car. You'll need to keep it running for a min as it learns the fuel trims etc based on tables instead of sensor. If that works..it's the maf.

    If that doesn't work. I'd check for spark and then aim for the crank sensor.
    I drink..so consider that when reading my posts.

    2010 Audi A6 Dual IC's
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  4. #4 Re: My Grand Prix cranks, but doesn't fire 
    GT Level Member GPGT4dr's Avatar
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    Fuel pump is under the hood, should be a 15A micro blade type fuse. Couldn't hurt to check.
    Jay-D (Aka DJ Jack Ripper - Look it up on facebook!)
    1999 GPGT Sedan, 3800S2, black with MOST options :/
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  5. #5 Re: My Grand Prix cranks, but doesn't fire 
    SE Level Member RedGrandprixgt53's Avatar
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    minen did the same thing, except mine knocked before it went out and i needed a whole new engine, not fun. good thing it happened right down the street from my house
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