You need to check the operations of these sensors: Coolant Temp. Throttle Position, and Vehicle Speed sensors-these items has to do with proper shifting and lock-up
Note: when the brake is applied the converter unlocks-at the ECM pin STP when brake is applied you should have 12v-not applied 0v
Check all the items above prior to dealing with the solenoids in the tranny.
BTW last Fluid/Filter change on it?
Saturday, December 23rd, 2006 AT 2:36 AM