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Turbo 350 Shifting Problems?

Discussion in 'The Garage' started by OffRoader93, Jan 4, 2004.

  1. OffRoader93

    OffRoader93 1/2 ton status

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    My transmission will only shift if I manually shift it. The fluid is at the right level. Was wondering if anyone has had this problem. Thanks for any information.
     
  2. Ryan B.

    Ryan B. 3/4 ton status GMOTM Winner

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    Did you check the vacuum modulator line and make sure your getting vacuum?
     
  3. 4X4HIGH

    4X4HIGH 1 ton status Premium Member GMOTM Winner

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    Like Ryan said, check the modulator valve hose, if it is connected and still doesn't shift then the modulator is probably bad. The tranny will however still shift but usually not until the RPM's are about 4500 or so.
     

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