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  1. Problems, Maintenance, and Repair (Gen 1)
    Shifts hard and converter is locked up on acceleration thru gears, still locked up on decel until 1st gear where it drags the idle down real far then finally releases just before it stalls the engine. I think it is a faulty shift solenoid valve, but I wanted to check if there were some more...
  2. Towing & Hauling
    Ok so I've been doing some work on our 2004 LE FWD described in this thread installing an indicator lamp for the lockup clutch to see when it actually locks up: http://www.siennachat.com/forum/64-2004-2010-dec-2009-2nd-generation-toyota-sienna/13177-torque-converter-lockup-indicator.html After...
  3. General Discussion (Gen 2)
    I was curious if there is an ECU or Transmission wire that controls the lockup of the torque converter that one might be able to tap into in order to run an LED light or something like that to show when the Torque converter lockup is commanded from the ECU? Also does anyone know if D is an...
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