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  1. T-350 wont shift to 3rd

    Transmission - Rearend
    I have just replaced a th350 in my first car. It is a 1978 Chevy Cheyenne with a L6 250........ So the transmission has less than 200 miles on it and it wont shift to third when the truck is warm. It does it fine when the truck is cold. Also it makes a whistling noise when it shifts to 2nd and...
  2. TBI issues 1987 Chevy CK 1500

    Modern Electronic Engines
    I have a Chevy CK 1500 and it has trouble code 43. I switched the knock sensor and now it won't start and I still get a fault code of 43. What could be the problem?:confused::confused::confused:
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