2009 Lincoln MKS Problems

RepairPal has identified the most common problems with the 2009 Lincoln MKS as reported by actual vehicle owners. We'll tell you what the problem is and what it'll take to fix it.

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7
Known Problems

The Lincoln MKS with optional 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 maintain a selected temperature, but when the fan speed changes frequently and needlessly, there is an issue with the fan speed control unit. 

The fan speed control unit, sometimes erroneously called the blower motor resister, regulates the speed for the blower motor in order to maintain the temperature set by the driver. When it fails, the fan will run at random settings, and the climate control will be inaccurate.

Note: this does not affect the temperature of the air that comes from the vents, it affects the amount of air that comes from the vents. 

The repair is simple, and quick. The control unit is located behind the glove box in most models, and removal and installation takes only minutes.

Also note: this only applies to vehicles with single or dual automatic climate control.

Various radio performance concerns may develop including noisy operation, no operation, or SYNC issues. Reprogramming the appropriate module with updated software will commonly correct most of these issues.

A fluid leak may be noted from the axle area. Red fluid is from the transmission. Brown fluid is from the power transfer unit (PTU). Leaks are commonly from the axle seal and/or PTU cover seal. Leaking seals should be replaced as necessary.

A grunting or grinding type noise may be noted from the front brakes. Our technicians tell us the problem is generally caused by the front brake caliper anchor brackets which can cause abnormal brake rotor and pad wear. The repair commonly involves replacing the brake pads and rotors and updating the caliper anchor brackets with revised parts.

A popping or squeaking noise my develop from the front wheel area. This can be caused by chafing of the jounce bumper against the strut rod and/or dust boot rubbing on the strut mount cup. Lubricating the bumper, rod, and boot with dielectric will commonly correct this type of noise.

The rear brakes may drag, causing a rhythmic sound. This can be caused by misaligned or corroded brake caliper anchor bolts. Our technicians recommend to replace the brake pads and anchor bolts to correct this concern.

The trunk lid may not latch closed, this is generally caused by the trunk latch sticking in the open position. Our technicians tell us that in most cases the trunk latch assembly will need to be replaced to correct this issue.