Hey there, I have a few burning questions I wanna run by you all... This is for a 99 tacoma, 3.4 auto with 169,000 miles on her.

1) Is there any way to turn off the "automatic door locks when truck is started" feature???
2) Has anyone else experienced the "buck" when you stop and then accelerate again? A spring guy told me it was because the back end sits low, so the driveline angle is off and tends to bind. He replaced 1 spring with a couple of others to give it a bit of help in the back. That fixed it for awhile, but now it's back. Anyone seen a solution for this?
3) I'm getting a bit of engine ping when accelerating. My MAF sensor is clean..I have a new air cleaner...my plugs are okay. What else should I check?

Thanks folks