Q: what is trac ON/OFF on a 2001 pt cruiser on 2001 Chrysler PT Cruiser

car has 37,000 miles and does not have a turbo engine, was driving along & stated to buck & lose power, I pulled over and slowly gave gas & car did slowly get back up to speed

Running lights don't work

I am replacing the water pump on my 2001 pt cruiser. I purchased a new tensioner pulley as mine was worn. after installing it and replacing the belt I noticed if I pushed on the tensioner the outside ring moved back towards the engine block. I didn't notice this on the one I took out and the new one is shaped different than the original one. Is this normal?