Spark plugs should be checked for wear and proper gap. Coil packs on these could have leaking insulators which are the pieces that cover the plugs directly. It is possible that the electricity to ground prior to getting to the spark plugs causing a misfire. The lack of power could be caused by a plugged fuel filter or failing fuel pump inside the tank. Fuel pressure is highly critical on these engines for power, efficiency and smooth reaction times. Let me know if you need anything further, I love these cars.
Answers & Comments
Spark plugs should be checked for wear and proper gap. Coil packs on these could have leaking insulators which are the pieces that cover the plugs directly. It is possible that the electricity to ground prior to getting to the spark plugs causing a misfire. The lack of power could be caused by a plugged fuel filter or failing fuel pump inside the tank. Fuel pressure is highly critical on these engines for power, efficiency and smooth reaction times. Let me know if you need anything further, I love these cars.
My 1988 Rolls Silver Spur is misfiring in two cylinders.