One problem related to car throttle sticking has been reported for the 2008 Mercury Mariner. The most recently reported issues are listed below. Please also check out the statistics and reliability analysis of the 2008 Mercury Mariner based on all problems reported for the 2008 Mariner.
I realized sometime last year that my throttle was sticking when I would start the car and begin to take off. It was here and there and then I must have gotten use to it but now it does it even when I'm driving, it sticks all the time. Now it doesn't want to shift at the right times and it acts weird a lot, going up hills, when shifting from gears and so on.