2008 Mercury Mariner engine NHTSA complaints: Engine And Engine Cooling

NHTSA — Engine And Engine Cooling Problems

CarComplaints.com Seal Of This Might Hurt

CarComplaints.com Notes: The 2008-2011 Mercury Mariner has a dangerous problem with the power steering that Ford says they fixed when they didn't -- at least not 100%.


definitely annoying
Crashes / Fires:
0 / 0
Injuries / Deaths:
0 / 0
Average Mileage:
38,243 miles

About These NHTSA Complaints:

This data is from the NHTSA — the US gov't agency tasked with vehicle safety. Complaints are spread across multiple & redundant categories, & are not organized by problem.

So how do you find out what problems are occurring? For this NHTSA complaint data, the only way is to read through the comments below. Any duplicates or errors? It's not us.

2008 Mercury Mariner engine problems

engine problem

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2008 Mercury Mariner Owner Comments

problem #3

Jan 312013


  • 56,631 miles


I was attempting to exit a parking lot and vehicle stalled and would not accelerate. I coasted back into a parking space, shut off engine and made a few more attempts with the same result each time. I shut vehicle off and waited for roughly twenty minutes and tried again. Vehicle did engage and I was able to exit parking structure however, vehicle stalled in the middle of the road. Fortunately, there was light traffic and I was able to coast back into parking lot. Problem was subsequently diagnosed as bad binding throttle cable. The cable was replaced at my expense. February 24 and 25 of 2014, vehicle stalled while in traffic, lost power and again pedal stuck and vehicle would not engage. Subsequent diagnosis is replacement of throttle body at my expense. This is extremely expensive and potentially dangerous.

- Southfield, MI, USA

problem #2

Dec 302009


  • 55,099 miles
2008 Mariner just serviced for oil change, safety, and new air filter. Not more than twelve miles, vehicle lost power on freeway. Was able to coast off highway onto off ramp. Vehicle would start, but failed to stay running. Vehicle has gas and towed to South pointe Lincoln Mercury.

- Colorado Springs, CO, USA

problem #1

Sep 032008


  • 3,000 miles
There is an open space in the front grill measuring 30-1/2 long X 4 high X 2-1/2 3-1/2 deep that is 15 from the road, which has no guard or shield to protect it from something like rocks flying off of the road. There is also another gap above this where debris can hit the A/C condenser that is 28 long X 1-1/2 high. Dealer claimed a rock flew off the road an put a hole in the A/C condenser. The vehicle only had 3,000 miles and was a couple months old. Dealer would not replace or repair condenser. Claimed it was not a covered under warranty.

- Parma, OH, USA

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