I have a new Tacoma 4x4 SR5 v6 a/t. 8000 miles on it now. I have a job site where I enter thru a gate onto a steep uphill. I have to stop and get out to shut the gate. I put the truck in park, set the e-brake, shut the gate, put the shifter in D position, release the e-brake and try to start up the hill. I hear sort of a chattering sound, and the truck won't move forward. Anyone come accross this? Am I doing something wrong? Should I be doing uphill starts in a different shifter position?