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2009 Mercury Mariner: check engine light

23 of the 315 complaints about the 2009 Mercury Mariner describe check engine light.

owner complaints
23
of this car's complaints
7%
typical repair cost reported
$547
typical mileage
92,912
recalls
0
Is there a fix? 6 service bulletins cover this area of the car. See below

Check engine light by model year

What owners say

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 Dec 9, 2017 · Transmission · 94,700 miles · CA

Driving my 2009 mariner premier about 35/45 MPH when wrench symbol comes on indicating throttle control powertrain / transmission problem car is not accelerating properly and transmission is jerking when I step on the gas pedal and the car shakes vibrates and feels under powered. Got home and parked it. Started it up and now check engine light is also on. Is this covered by the recall for extended warranty from ford ?

Filed Feb 8, 2016 · Steering · 125,000 miles · MI

Tl* the contact owns a 2009 mercury mariner. While making a left turn at approximately 15 MPH, the steering wheel became difficult to maneuver. The check engine and battery warning light illuminated. In addition, prior to the failure, an abnormal clicking sound emitted from the vehicle. The contact also stated that there was another clicking sound a few minutes later and the steering wheel operated properly. The contact mentioned that the failure recurred multiple times after the vehicle was previously repaired under the federal safety agency campaign number: 14v284000 (steering). The vehicle was towed to the contact's residence. The vehicle was not diagnosed or repaired. The manufacturer was notified of the failure. The failure mileage was 125,000.

Filed Feb 2, 2016 · Engine, Steering · 125,000 miles · MI

Tl* the contact owns a 2009 mercury mariner. The contact stated that while at an intersection making a left turn, the power steering failed. The check engine warning light illuminated. The vehicle was not diagnosed or repaired. The manufacturer was not notified of the failure. The approximate failure mileage was 125,000. The VIN was not available.

Filed Jun 22, 2015 · Electrical, Engine · 118,000 miles · OH

Tl* the contact owns a 2009 mercury mariner. While driving on an incline at an unknown speed, the vehicle suddenly decelerated and would not accelerate when the accelerator pedal was pressed. The service engine light illuminated prior to the failure. The vehicle stalled and was able to be restarted. The vehicle was taken to an independent mechanic where it was diagnosed that the electronic throttle control failed. The vehicle was not repaired. The manufacturer was not notified. The VIN was unavailable. The failure mileage was 118,000.

Filed Aug 27, 2014 · Engine · 29,000 miles · MI

Check engine light came on while driving 55 MPH on the freeway on 8/11/14. No signs of malfunction initially. Later the check engine light went off on 8/13/14. Took mariner to firestone auto care to diagnose check engine light. They told me it was p0022 - vct solenoids, but the engine was still running fine. They reset the computer and told me the next time the check engine light comes on to take it into a dealership. So the check engine light comes back on by 8/17/14. Started noticing shuttering between 50-60 MPH on 8/22/14. Took car into dealership on 8/27/14. Was told that the vct solenoids needed to be replaced at approx. $620 and this car only has 29k miles on it and of course is out of warranty. There is a service bulletin on replacing the vct solenoids but of course no recall has been issued. A recall should be issued and I should receive reimbursement for this repair for something that is obviously a widespread problem with mariners and escapes from 2009-2011.

Filed May 7, 2014 · Engine, Transmission · 69,000 miles · OK

While driving the auto just stopped and the check engine light came on and stayed on. I turned the auto off and restarted. It did this three times before I arrived back home. Took it to have a diagnostic test on the engine and code p2111 - throttle actuator stock open was the results. This is the second time this happened. The first time was 2 or 3 months ago but the check engine light did not come one.

Filed Nov 27, 2013 · Acceleration · 109,500 miles · AR

Traveling along with cruise control set at 65 when all of a sudden my vehicle decelerates. The "throttle body/throttle position switch" indicator light illuminated. Vehicle has had intermittently gone into "limp" since then. Lately it has happened at least once per day, often when trying to accelerate quickly or above 40mph. Check engine light illuminated yesterday (11/26/2013) and indicated a p2111 diagnostic code (throttle actuator stuck open). This is apparently a fairly common issue already under investigation. The solution seems to be have a dealer replace the throttle body (roughly $400 parts and labor).

Filed Nov 27, 2013 · Transmission · 95,000 miles · CA

Car had problems with lagging during acceleration. I was driving to the bank and the car completely stopped responding to the gas pedal.a wrench light popped up as well as check engine light. Had to pull over because my car would no longer accelerate and quickly stopped moving. I was told by mechanic it was the throttle body.

Questions about the 2009 Mercury Mariner check engine light

Is check engine light a common problem on the 2009 Mercury Mariner?

23 of 315 owner complaints about the 2009 Mercury Mariner (7%) mention check engine light. The model year with the most reports is 2010.

How much does it cost to fix check engine light on the 2009 Mercury Mariner?

Owners who mentioned a price put the repair at about $547 (median of 5 complaints that include a dollar amount). Costs vary with mileage, warranty and where the work is done.

Is there a recall or service bulletin for this on the 2009 Mercury Mariner?

There are 0 recalls and 6 service bulletins for the same area of the car. Check them below with your VIN.

Other symptoms on the 2009 Mercury Mariner

Power steering loss 84Loss of power 42Stalling 35Jerking 15Engine failure 12Steering lock-up 11Won't shift 6ABS 5Brake failure 5Hesitation 5

All model years of the Mercury Mariner

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