2008 Mercury Mariner Vehicle speed control Problems
- Complaints
- 31about this part
- Share
- 7%of 461 total for the year
- Median mileage
- 78,500miles
- Trend
- FallingComplaints filed in the last 3 full calendar years are at least 25% lower than in the 3 years before.
NHTSA recorded 31 complaints about the vehicle speed control of the 2008 Mercury Mariner, 7% of the 461 complaints for this model year. Where a mileage was given, the median is 78,500 miles.
Example complaints
Selected from NHTSA records; personal details are removed. They are consumer reports, not findings.
“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.”
NHTSA complaint #11387585, filed 2021-01, 198,000 miles“Takata recall well driving my vehicle lost acceleration.when I step on the gas the vehicle didn't accelerate as the RPM went up.I was coming to a stop light on city street.as I made the stop at stop-light as the light turn green I stepped on the has and the rpms went up but vehicle barely moved.”
NHTSA complaint #11209625, filed 2019-05, 165,000 miles“I pulled into a gas station to turn around. When I came to a complete stop and pressed the gas pedal to go, my gas pedal wouldn't budge it was like it was stuck. When I pulled on the highway it done it again but it took longer to get my gas pedal to press down. When I come to stop now I have to keep my foot on the break and the gas pedal to insure that it will go when I press the gas pedal.”
NHTSA complaint #10559589, filed 2014-01, 91,526 miles“While driving my car stalls without warning then it jerks real hard and takes off so I have to ride the brakes after coming to a stop before I can press the gas peddle it takes off so I ride the brakes. While driving again it picks up speed on its own very scare please help.”
NHTSA complaint #10566766, filed 2014-03, 102,000 miles“About 2 months ago, the accelerator on my 2008 Mercury Mariner started sticking. Today it stuck and remained stuck for about 2 minutes. I took it to the dealer and was told they could not duplicate the problem, but could put a 347.00 part in it just in case it is the problem. I was charge $70.00 for the diagnosis.”
NHTSA complaint #10311357, filed 2010-02, 50,000 milesRelated service bulletins
- 10033726Sep 1, 2010Ford/mercury: new service kit available for accelerator cable to pedal connection. Some vehicles may require the accelerator cable to accelerator pedal connection repaired. A new…
Vehicle speed control: other model years
Other parts of the 2008 Mercury Mariner
297 complaintsTransmission and drivetrain
66 complaintsBrakes
35 complaintsElectrical system
27 complaintsOther or unknown
20 complaintsEngine
14 complaintsFuel system
10 complaintsAir bags
8 complaintsEngine cooling
6 complaintsElectronic stability control
5 complaintsBody and structure
5 complaintsSuspension
5 complaints
← All problems reported for the 2008 Mercury Mariner
About this data. Data from NHTSA (ODI) complaints, recalls, TSBs and investigations, updated Oct 31, 2026. Complaints are unverified consumer reports and may be duplicated or inaccurate.
To check a specific vehicle for open recalls, use its VIN at nhtsa.gov/recalls. Methodology