Problems for specific Mercury Grand Marquis years:

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Repairpal verified 2007 Mercury Grand Marquis problems

 

Verified for the Mercury Grand Marquis

A spring in the seat belt buckle may wear or fail, causing the airbag light on the instrument panel to illuminate. Failed buckles will require replacement.

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Verified for the Mercury Grand Marquis

Transmission problems are common in this model, often as a result of a failed front pump. The pump loses its ability to create hydraulic pressure, which an automatic transmission needs to function. A sign of front pump failure can be a whine type noise.

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Verified for the Mercury Grand Marquis

The engine may overheat at idle when the AC is on. A new, upgraded fan motor and resistor may be required to correct this concern.

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Verified for the Mercury Grand Marquis

The composite (plastic) intake manifold may crack near the thermostat housing and cause a coolant leak. Ford released an updated manifold that was reinforced to prevent a recurrence. No recall was issued for this problem but Ford did extend the warranty to seven years on some models from the date of purchase.

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