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Repairpal verified 2005 Mercury Grand Marquis problems

 

Verified for the Mercury Grand Marquis

One or more oxygen sensors may fail resulting in illumination of the Check Engine Light.

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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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