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  1. 04-14-2010, 05:58 AM #1
    redbird555
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    2002 Camaro Z/28 Pewter

    Tranny Wont kick down

    Ok guys just changed my OPSU the other day and Ive driven the car a few times but never really got on it. Well today I noticed that my car will not downshift into first below 40 like it should. If I press it to the floor itll go from 4-3 3-2 or just stay in 2 itll never go to 1st unless i put the shifter there in which case it will and run fine. If i floor it off a stop itll pull and shift normal and it does shift normal in everyday driving. I unplugged the pcm tonight to see if it would reset by morning but idk if thats the issue. Its not throwing an ses so i dont believe there to be any codes.Thanks for the help
    Dan
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  2. 04-17-2010, 10:26 AM #2
    JaycenK
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    What is an OPSU? Check TPS just make sure it's within range.
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  3. 04-17-2010, 10:31 AM #3
    Cutlass
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    1999 Formula WS6 M6-sold
    2001 Silverado Z71

    Quote Originally Posted by JaycenK View Post
    What is an OPSU?
    Oil Pressure Sending Unit
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