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2009 Mercury Mariner Problems

Find the most common issues based on 2009 Mercury Mariner owner complaints.
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Most Common 2009 Mercury Mariner Problems

Looseness in the steering shaft and steering shaft coupling U-joint can cause a knocking / popping noise from the steering column when turning. The steering shaft and coupling U-joint will need to ...
If the transmission oil leaks out of left side half shaft area, it may be from a worn axle shaft seal. The seal can be damaged by a poor surface finish on the axle shaft. The axle shaft and seal ...
The check engine light may come on due to failure of the Variable Camshaft Timing (VCT) solenoids. The VCT solenoids will need to be replaced if they are the reason the check engine light came on.
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0 Known 2009 Mercury Mariner Brakes Problems

2 Known 2009 Mercury Mariner Drive Train Problems

If the transmission oil leaks out of left side half shaft area, it may be from a worn axle shaft seal. The seal can be damaged by a poor surface finish on the axle shaft. The axle shaft and seal ...
The transmission oil cooler may develop a leak, which will require replacement to repair.

0 Known 2009 Mercury Mariner Electrical & Lights Problems

1 Known 2009 Mercury Mariner Engine Problem

The check engine light may come on due to failure of the Variable Camshaft Timing (VCT) solenoids. The VCT solenoids will need to be replaced if they are the reason the check engine light came on.

0 Known 2009 Mercury Mariner Exhaust & Emissions Problems

2 Known 2009 Mercury Mariner Heating & Air Conditioning Problems

The 2008-2011 Mercury Mariner with manual temperature and fan controls may have problems with the the blower motor only blowing air on certain settings. Most commonly the fan will only run on the h...
The Mercury Mariner equipped with automatic temperature control may have a problem with frequent fan speed changes when using the heater or air conditioner. Normally, the fan speed changes only to ...

0 Known 2009 Mercury Mariner Maintenance Problems

0 Known 2009 Mercury Mariner Miscellaneous Problems

2 Known 2009 Mercury Mariner Suspension & Steering Problems

Looseness in the steering shaft and steering shaft coupling U-joint can cause a knocking / popping noise from the steering column when turning. The steering shaft and coupling U-joint will need to ...
Shock bushing failure in the rear can allow the shock absorber to contact the body and cause a squeaking noise over bumps in the rear. The faulty rear shock absorber bushings should be replaced.

7
Known 2009 Mercury Mariner Problems & Complaints

Looseness in the steering shaft and steering shaft coupling U-joint can cause a knocking / popping noise from the steering column when turning. The steering shaft and coupling U-joint will need to ...
The check engine light may come on due to failure of the Variable Camshaft Timing (VCT) solenoids. The VCT solenoids will need to be replaced if they are the reason the check engine light came on.
The 2008-2011 Mercury Mariner with manual temperature and fan controls may have problems with the the blower motor only blowing air on certain settings. Most commonly the fan will only run on the h...
The Mercury Mariner equipped with automatic temperature control may have a problem with frequent fan speed changes when using the heater or air conditioner. Normally, the fan speed changes only to ...
The transmission oil cooler may develop a leak, which will require replacement to repair.
If the transmission oil leaks out of left side half shaft area, it may be from a worn axle shaft seal. The seal can be damaged by a poor surface finish on the axle shaft. The axle shaft and seal ...
Shock bushing failure in the rear can allow the shock absorber to contact the body and cause a squeaking noise over bumps in the rear. The faulty rear shock absorber bushings should be replaced.
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