Originally Posted by twisty
makes me wonder if the shop got the timing wrong when they put it back together. i totally would go back and demand cash back, i cant see changing oil seals and a harmonic balancer (do our cars even use that pulley as a balancer?) causing what you described as the reason to go there.
I don't think they replaced the timing belt.
I agree those issues wouldn't cause the problems you have/had. I would walk right back into the dealership and Bitch them out. Right in front of other customers, that will help you out in getting some sort of reimbursement. It sounds like a air leak or a IAC.
The balancer on these engine really only helps aid in damping the vibrations felt in the drivers compartment from the layout of the engine. You can tell this by people installing lightweight crank pullies without damaging the engine and I heard they free up a decent amount of HP. Where you install a pulley like that on a 2jz Toyota engine and you will destroy it for sure.