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  1. 9CZ71Denali

    Revving too high before it will shift...

    Where is the MAP and how do I clean/replace it? Sorry for the newb question. Thanks for the help guys!
  2. 9CZ71Denali

    Revving too high before it will shift...

    Clean/smells fine... The thing that is getting me the most is when I accelerate, I don't go anywhere...
  3. 9CZ71Denali

    Revving too high before it will shift...

    The truck has 81K miles on it, trans fluid/filter changed over the winter. Maybe that is what is killing (killed) it? When it does finally shift, it is smooth. I am having a multitude of other issues all of a sudden... When I accelerate hard (in 4th or 5th), it revs high but doesn't...
  4. 9CZ71Denali

    Revving too high before it will shift...

    Hello all, I have an '03 Z that has been well maintained. Recently the engine is revving higher than normal before it shifts, sometimes I have to let off the pedal to get it to shift. Is the tranny going bad or maybe an engine problem? Also quite a bit of pinging and knocking lately. No CE...

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