I noticed that my 2013 LaCrosse 3.6 L is not getting the mileage it was when I first bought it.
The FSM provides instructions on cleaning the throttle body valve plate for deposits.
My car has about 27500 miles. The FSM says this cleaning procedure should not be performed on vehicles with mileage under 50,000.
It also says that following the procedure you should perform the Throttle Body Learn procedure using a scan tool to reset all learned values back to zero.
I don't have a scan tool. Can I not just take a few drive cycles to do this?
Any tips on cleaning the throttle body?