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Mercury Mariner check engine light comes on

73 of the 1,296 owner complaints about the Mercury Mariner describe check engine light, most of them for the 2010 model year.

owner complaints
73
worst model year
2010
typical repair cost reported
$590
typical mileage
74,500
Is there a fix? No recall or service bulletin covers this area of the car yet.

By model year

Often reported together

Stalling 18Loss of power 14Power steering loss 7Jerking 7Won't shift 4Steering lock-up 2Hesitation 2

Trouble codes mentioned

P2111 10P2112 2P2119 1P1212 1P0022 1B1342 1

What owners say

Filed May 11, 2025 · Fuel system · OR

Engine light came on after putting fuel in my car it is hapless the codes read emission and fuel issues to replace cap but it is hapless it says it's an issue that needs to be fixed now my engine light won't go off

Filed Dec 6, 2023 · Fuel system · CA

Charcoal canister and purge valve defective stuck at open. Check engine light, dropped fuel economy. Forced vehicle to shut off engine and no power, stop on freeway at full speed.

Filed Feb 9, 2023 · Steering, Transmission · IL

I have been intermittently losing power steering. The code is B1342. After researching, it looks like Ford is aware of this problem but is unwilling to fix the issue. This fix must be done at a dealership since it is a software issue and going to cost $2,000. Obviously losing power steering when going at fast speeds is incredibly dangerous for myself and others. There is no check engine light that comes on when the issue arises.

Filed Jun 9, 2022 · Steering · 122,064 miles · MO

The contact owns a 2009 Mercury Mariner. The contact stated that while driving at an undisclosed speed, the steering wheel was difficult to turn before the steering locked up. The contact was able to restart the vehicle and the vehicle operated as designed. The check engine and TPMS warning lights were illuminated. The vehicle was taken to an independent mechanic who referred the contact dealer. The contact called the local dealer but the vehicle was not diagnosed or repaired. The manufacturer was not notified of the failure. The failure mileage was approximately 122,064.

Filed Nov 15, 2021 · Steering · 147,377 miles · MA

The contact owns a 2009 Mercury Mariner. The contact stated while driving approximately 20-25 MPH, the power steering failed, and the steering wheel was difficult to maneuver. The check engine warning light was illuminated. The vehicle was taken to an independent mechanic and diagnosed with a power steering assist failure. The vehicle was not repaired and remained with the mechanic. The manufacturer was not made aware of the failure. The contact related the failure to the federal safety agency Campaign Number: 14V284000 (Steering) however, the VIN was not included in the recall. The failure mileage was approximately 147,377.

Filed Aug 13, 2021 · Engine, Transmission · PA

I was driving when it felt like the vehicle was reving in park then the "wrench" icon appeared on my dash. I went a couple blocks & my vehicle felt like it wasn't shifting automatically as it should. I pulled over & turned it off. It started right back up with no lights on, I went half a block & stopped at a stop sign but while stopped the engine reved up. I was worried I was going to be in an accident. Then the "wrench" light came back on, since I was close to home I figured I'd just try to get home. About another block, the check engine light came on & was making strange noises. I kept my vehicle at about 5-10 mph & got it home. My car was very jerky.

Filed Feb 12, 2021 · Steering · 198,000 miles · WI

Tl* the contact owns a 2008 mercury mariner. The contact stated that while driving at various speeds, the steering wheel would vibrate uncontrollably as the check engine warning light illuminated on the instrument panel. The contact then stated that upon reversing out of a parking spot, the power steering failed as the check engine warning light remained illuminated. The contact then called porcaro ford (6001 washington ave, racine, wi 53406) where he was informed that his vehicle was not included the federal safety agency campaign number: 14v284000 (steering). The manufacturer was not notified of the failure. The vehicle was not repaired. The failure mileage was approximately 198,000.

Filed Aug 27, 2020 · Steering · 185,000 miles · NY

Tl* the contact owns a 2010 mercury mariner. The contact stated that the steering lost power and was difficult to turn. The check engine light illuminated. The contact called the ford lincoln of queens service center dealer, located in queens, new york, (888) 705-7067, and was told that there was no recall. The manufacturer was made aware of the failure and stated that there was no recall. The vehicle was not repaired. The failure mileage was approximately 185,000.

Filed Nov 12, 2018 · Steering · 129,000 miles · TX

"ford power steering recall 2008 mercury mariner" while driving, "power steering assist fault" displayed on my console and experienced a sudden loss in power steering, making it very difficult to turn the steering wheel. I found a recall listing in 2014 #14s05 for this same issue for the same year and model as my vehicle. I have been told by both ford motor co. And my local.dealershio, that my vehicle.does not qualify for a recall. There was no warning of this failure, no engine lights or warnings we're onprior to operating the vehicle.

Filed Jun 20, 2018 · Engine · 189,542 miles · NE

Having two issues. The first one is the check fuel intake warning light comes on and my check engine light stays on. This appears to be causing my car to cut out dangerously at intersections as well as the wrench light to come in and my car 'limps' home.

Related recalls

No recalls on record for this model year.

Questions about the Mercury Mariner check engine light

Why does the check engine light come on in the Mercury Mariner?

Owners who report it most often also describe engine stalls while driving, sudden loss of power and loss of power steering, and the codes they mention most are P2111, P2112 and P2119.

Which Mercury Mariner years have check engine light problems?

The model years with the most reports are 2010 (30 complaints), 2009 (23 complaints) and 2011 (11 complaints).

How much does it cost to fix check engine light on the Mercury Mariner?

Owners who mentioned a price put the repair at about $590 (median of 12 complaints that include a dollar amount). Costs vary with mileage, warranty and where the work is done.

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