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Found 1 result

  1. Jon9116
    Calling all 4l80e experts. I have no 4th gear. Background info. No CELs. My transmission cannot be commanded electronically via scanner or manually with the valve body wired directly so all signs point to tranny. All transmission solenoids are within spec via GMs ohm chart. All other gears are smooth. Also, on scanner, trans shows to be in 4th when in 3rd and 3rd when in 2nd. All forward gears show 190 PSI (no way of checking 4th). Any ideas?
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