Thread: 04 grand prix gt2 cuts off while driving?

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  1. #1 04 grand prix gt2 cuts off while driving? 
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    I have had my car for awhile and it's been a great car, but for the last couple months it shuts off while driving down the road. It runs great, but just turns off with no warning. Sometimes it will start back up a few minutes after it dies and sometimes it has to sit overnight. No one can figure it out because it doesn't throw a code and by the time they get to it, it starts back up. This last time, 3 days ago, the shop finally messed with it while it was dead. It was getting gas and compression, but no fire. They were about to start trying different things to fix it and it started back up again. I had them replace the crank and cam sensors just as a stab in the dark. I am freaking out wondering if it is going to happen again though. Has anyone experienced this "ghost" problem? Thanks
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  2. #2 Re: 04 grand prix gt2 cuts off while driving? 
    I live here. brandonl2000's Avatar
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    If they replaced the crank sensor and it hasn't done it in a while, I'd be willing to say that might have nipped it in the butt.
    2003 Grand Prix GTP-3.5 setup, sold it, miss it
    2002 Grand Prix GT-top swap, GT1 Cam, SD Headers, 90# springs, 42.5 injectors, 3.4 pulley - sold
    2012 Chevrolet Cruze LTZ-Summit White, 1.4Turbo
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  3. #3 Re: 04 grand prix gt2 cuts off while driving? 
    Perma-Banned! JK LOL Explicit_Spade's Avatar
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    Is your check engine light on?
    Quote Originally Posted by W-Body Store
    Remember, GM engineers didn't take into account your need for speed.
    Daily Driver: 06 Grand Prix GT / 9.4:1 CR / IS3 Heads / Ported Gen V / ZZP Headers / HPT Pro / Pulleys: 4.25, 3.8, 3.5, 3.4, 3.2, 3.0, 2.9, 2.7
    Projects: 86 Monte Carlo SS / 98 Sonoma / 74 Honda CB750
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  4. #4 Re: 04 grand prix gt2 cuts off while driving? 
    Turbo is the way to go. BillBoost37's Avatar
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    Often this is a crank sensor. It's pretty common. Next most common thing for this issue on a 97-03 is the ignition switch. I haven't noticed if the 04+'s suffer from poor ignition switches.
    I drink..so consider that when reading my posts.

    2010 Audi A6 Dual IC's
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  5. #5 Re: 04 grand prix gt2 cuts off while driving? 
    I live here. SlowNA06's Avatar
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    Bad alternator?
    Irridium spark plugs last 100k mi and work just as well as copper. Copper is a waste on N/A and only lasts 15k mi. Don't use Platinum.
    Use 195* tstat unless you can thoroughly explain why not; 99.9% don't need a lower temp.
    Almost any oil filter, ever, is of higher quality than ACDelco. Spend $6+.
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  6. #6 Re: 04 grand prix gt2 cuts off while driving? 
    GT Level Member Ravenwald's Avatar
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    Funny moment I had before when my keys were attached to a lanyard. Every once in a while I would turn the car off accidentally while driving. For a while I thought it was a mechanical issue because I wasn't paying attention to my keys.

    This seems to have no effect upon your car, but I just thought I'd take time to interject some of my usual automotive stupidity.
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