Hello! I am new here and need some help. I just purchased a 92 s10 blazer for $500. 4.3 TBI. Speedometer and odometer do not work, but my real problem is no second gear. The vehicle has to get to a certain speed and will shift from 1 to 3 and then OD. Manual shifting does not do a thing for second gear. Oh! it's a 4L60E. Could it be a computer problem? or shift solenoid? or maybe the VSS? I dropped the pan and did a filter and fluid change for the hell of it but no change. Fluid looked muddy but no metal on the magnet. HELP!