Test # 8 - Checking Cooler Line Pressure or Surge
TEST # 8CHECK COOLER LINE PRESSURE OR SURGE
^ Check cooler line pressure or surge.
^ Disconnect a cooler line.
^ Attach one end of a rubber hose to the disconnected line coming from the radiator.
^ Insert the other end of the rubber hose into the fill tube of the transmission.
^ With the driving wheels off the ground, start the engine. Hold the rubber hose in your hand. Have as assistant place the selector in Drive and (slowly) accelerate to 60 mph. When the lock-up valve moves, the rubber hose should jump slightly.