i have a 2001 pontiac grand prix supercharger and it wont go into third or
drive. i checked the fluid and its good so how would i fix this?
Your transmission problem might be as simple as low or contaminated fluid, or even just a battery that's not putting out enough voltage to properly power the transmission controls. After you check these, you might have a defective shift solenoid. You didn't mention any warning lights, but if any are on, you might also have a bad speed sensor, or PCM..... This doesn't sound as dire as a trans replacement, but you should see a trans shop for service & repairs, if needed.
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