Thread: 2005 Grand Prix chugging

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  1. #1 Re: 2005 Grand Prix chugging 
    SE Level Member Gorecki's Avatar
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    Did you only clean the MAF? What about the throttle body itself? Is the air intake good and clear, filter? Even the type of filter can be more of a problem than a help. I tried a Purolator once that was so restrictive the car couldn't breathe very well.

    Beyond that, whens the last time plugs, wires, PCV had any attention?

    Have you had a scanner on it to see if it's throwing any codes that aren't triggering the MIL?

    Just some thoughts..
    [TRADED] 2005 Grand Prix Silver
    K&N Air Filter, NGK TR55GP G-Power Plugs, Delphi OE Wires, Timken Bearings, Mobil 1 Synth ATF & Oil, Purolator PureOne Filter
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  2. #2 Re: 2005 Grand Prix chugging 
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    I have the same problem in my 05 GP GT. No codes, no check engine light, MAF is clean, new plugs, new filter, throttle body clean. I have checked everything I could think of. Just as the original post, if you restart the car it acts fine. It is very intermittent.
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