Question about Cars & Trucks
Tranny shifting in and out of overdrive
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Posted on Jan 02, 2017
Are you sure the TV ( trans shift cable at the throttle valve) cable is correctly adjusted?? Without line pressure readings, I can only guess that the D3/Part throttle check ball is missing, if it is a trans problem
If the TV is correct, I am assuming that the TV cable is pulled tight at WOT.
Did you check the throttle (ACCEL) cable to be sure that the carb goes wide open when your accel pedal is on the floor?? This must be done with someone in the car and a second person looking at the carb. Without doing this, you do not know if you have WOT. Without WOT, the trans will not de-tent and shift down.
Posted on Jul 29, 2008
FIRST CHECK TRANSMISSION FLUID LEVEL.IF FLUID LEVEL IS GOOD. YOUR PROBLEM COULD BE THROTTLE CABLE IS BINDING OR OUT OF ADJUSTMENT.YOUR GOVERNOR IS DAMAGE OR MISSING PARTS.YOUR OIL PUMP PRESSURE REGULATOR VALVE OR TV BOOST VALVE STUCK OR DAMAGE NOW .IN THE VALVE BODY.STICKING LINE BIAS VALVE TV LIMIT VALVE MODULATED TV UPSHIFT OR DOWNSHIFT VALVES.OR A STICKING THROTTLE VALVE PLUNGER.STICKING OR STUCK 1 -2 2 -3 3 -4 THROTTLE VALVES OR PRESSURE REGULATOR VALVE.THE SPACER PLATE GASKETS DAMAGE.ALSO THE 2 -4 SERVO ASSEMBLY ACCUMULATOR DAMAGED.THE 2 - 4 BAND BURNED OR ANCHOR PIN NOT ENGAGED.
Posted on Aug 31, 2009
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