1997 Mercury 994 Grand Marquis Fuse Box DIagram 1997 Mercury 994 Grand Marquis Fuse Box Map Fuse Panel Layout Diagram Parts: EGR valve to exhaust manifold tube, EGR valve, bolt, RH exhaust manifold EGR valve tube to manifold connector, tighten to 20-30 N-m, tighten to 45-65 N-m, tighten to 35-45 N-m.