Car running great then dies in traffic after being serv.
Took my 2002 Nissan Altima to the dealer for brakes and front end alignment, he called saying the belts need to be changed and the throttle valve was dirty and needed to be cleaned($129) . I have a Ford Explorer that is 13 years old--never heard of cleaning a throttle valve or on any other car that I have owned. Told him to change the belts. On the way home from the dealer the car dies in traffic. Had to be towed(car would not come out of park) back to the dealer.
Two questions:
Will having the car pulled onto the tow truck while it was in park do any damage to the car or the services I already paid for.
Is it normal for the throttle valve to get dirty and need to be cleaned at 80,000 miles. I always use a medium grade gas.