Practice question

What is the function of shift solenoids inside an automatic transmission valve body?

  1. To mechanically lock the transmission gears to prevent vehicle roll
  2. To route pressurized transmission fluid to the appropriate clutches or bands to change gears based on TCM signals
  3. To measure the temperature of the automatic transmission fluid
  4. To adjust the engine oil pump pressure based on vehicle speed

Answer: B — To route pressurized transmission fluid to the appropriate clutches or bands to change gears based on TCM signals

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