One problem related to tank assembly has been reported for the 2008 Mercury Grand Marquis. The most recently reported issues are listed below. Please also check out the statistics and reliability analysis of the 2008 Mercury Grand Marquis based on all problems reported for the 2008 Grand Marquis.
When the gas gauge registers below 1/2 tank, and the tank is refueled to capacity, it takes several miles driving( approx. 30-50 miles) for the gauge to register full. Also, if the tank is towards the empty mark, and the car is filled to capacity, and he car is driven, the low fuel light will come on, and say on for an extended period of time. At times, before the car is driven, the car refuses to start as if it is not getting any gas. After it sets for a while, it will start.
| Tank Assembly problems | |
| Tank Mounting problems |