TM 9-2320-209-20-3-1 4-27. MANIFOLD HEATER (TOP-MOUNTED, COVERED) IGNITION COIL AND FUEL PUMP REMOVAL AND REPLACEMENT (TRUCKS WITH ENGINE LD 465-lC). TOOLS : 1/2-inch wrench 3/8-inch wrench 7/16-inch wrench Flat-tip screwdriver 7/8-inch wrench 6-inch slip joint pliers SUPPLIES : None PERSONNEL: One EQUIPMENT CONDITION : Truck parked, engine off, handbrake set. a. Preliminary Procedures. (1) Open hood. Refer to TM 9-23270-209-10. (2) Disconnect battery ground cable. Refer to para 7-58. 4-150