Car Repair World

Ford BRAKE SYSTEM DESCRIPTION See Figure 1 Fig. Fig. 1: View of a common master cylinder mounting and line routing-F-150, F-250, F-350 and Bronco models This Will Help. Thanks.

CAR BATTERY STARTER STARTERSOLENOID  The battery and starting motor are linked by very heavy electrical cables designed to minimize resistance to the flow of current. Generally, the major power supply cable that leaves the battery goes directly to the starter, while other electrical system needs are supplied by a smaller cable. During starter operation, power flows from the battery to the starter and is grounded through the vehicle's frame/body or engine and the battery's negative ground strap. The starter is a specially designed, direct current electric motor capable of producing a great amount of power for its size. One thing that allows the motor to produce a great deal of power is its tremendous rotating speed. It drives the engine through a tiny pinion gear (attached to the starter's armature), which drives the very large flywheel ring gear at a greatly reduced speed. Another factor allowing it to produce so much power is that only intermittent operation is requ...

Ford F-350 Oil Pressure Indicator Lamp Sending Unit REMOVAL & INSTALLATION See Figures 1, 2 and 3 Fig. Fig. 1: Oil pressure switch location-4.9L engine Fig. Fig. 2: Oil pressure switch location-5.0L/5.8L engines Fig. Fig. 3: Oil pressure switch-7.3L diesel and 7.5L gasoline engines (adapter is for 7.3L only) Unscrew the unit. Coat the threads with electrically conductive sealer and screw the unit into place. The torque should be 10-18 ft. lbs. (14-24 Nm). For the location of your unit, see the accompanying illustrations. Disconnect the wiring at the unit. OPERATION A single terminal oil pressure switch is used on vehicles equipped with an oil pressure lamp. If the pressure is detected to be at an unsafe level, a red indicator lamp will glow on the dashboard. The light should come on when the engine is off but the ignition is in the  RUN  position. Once the engine is started, the light should go out. The lamp i...

Oil Pressure Gauge Sending Unit  OPERATION The oil pressure sending unit is a variable resistance type magnetic unit that works in conjunction with the magnetic operation of the gauge system. The sensing unit may only be tested for operation. There is no calibration, adjustment or maintenance required. TESTING With the key in the  RUN  position and the engine off, unplug the wiring at the switch. The gauge should read on the LOW graduation or below. Attach the wiring connector to the engine block (ground). The gauge should read just slightly above mid-scale. If the oil pressure gauge tests within specification, replace the oil pressure switch. If the gauge still tests out of calibration, replace the oil pressure gauge. REMOVAL & INSTALLATION WARNING The pressure switch used with the oil pressure warning light is not interchangeable with the sending unit used with the oil pressure gauge. If the incorrect part is installed the oi...

Ford F-350 Coolant Temperature Sensor OPERATION When coolant temperature is low, the resistance of the sending unit is high, restricting the flow of current through the gauge and moving the pointer only a short distance. As coolant temperature rises, the resistance of the sending unit decreases, causing a proportional increase in current flow through the sending unit and corresponding movement of the gauge pointer. The sending unit may only be tested for operation. There is no calibration, adjustment or maintenance required. TESTING See Figures 1, 2, 3 and 4 Fig. Fig. 1: Coolant temperature sender location-4.9L engine Fig. Fig. 2: Coolant temperature sending unit-5.0L/5.8L engine shown, 7.5L engine similar Fig. Fig. 3: Submerge the end of the coolant temperature sensor in cold or hot water and check the resistance Fig. Fig. 4: Coolant temperature sensor temperature vs. resistance values Remove the sensor from the vehicle. Immer...

Ford Firing Order With Diagrams See Figures 1, 2, 3 and 4 To avoid confusion, replace spark plug wires one at a time. Fig. Fig. 1: 5.8L engine-nl-> Firing order: 1-3-7-2-6-5-4-8-nl-> Distributor rotation: Counterclockwise Fig. Fig. 2: 4.9L engine-nl-> Firing order: 1-5-3-6-2-4-nl-> Distributor rotation: Clockwise Fig. Fig. 3: 5.0L and 7.5L engines -nl-> Firing order: 1-5-4-2-6-3-7-8-nl-> Distributor rotation: Counterclockwise Fig. Fig. 4: 6.9L and 7.3L Diesel engines-nl-> Injection order: 1-2-7-3-4-5-6-8 This will help. Thanks.

Ford Engine TFI-IV System GENERAL INFORMATION See Figures 1 and 2 Fig. Fig. 1: TFI schematic Fig. Fig. 2: Exploded view of the TFI components The Thick Film Integrated (TFI-IV) ignition system uses a camshaft driven distributor with no centrifugal or vacuum advance. The distributor has a diecast base, incorporating a Hall effect stator assembly. The TFI-IV system module is mounted on the distributor base, it has 6 pins and uses an E-Core ignition coil, named after the shape of the laminations making up the core. The TFI-IV module supplies voltage to the Profile Ignition Pick-up (PIP) sensor, which sends the crankshaft position information to the TFI-IV module. The TFI-IV module then sends this information to the EEC-IV module, which determines the spark timing and sends an electronic signal to the TFI-IV ignition module to turn off the coil and produce a spark to fire the spark plug. The operation of the universal distributor is accomplished through the H...

Ford F-350 Ignition Module Replacement Procedure REMOVAL & INSTALLATION See Figure 1 Fig. Fig. 1: A TFI-IV ignition module Remove the distributor cap from the distributor, and set it aside (spark plug wires still connected). Disconnect the harness connector. Remove the distributor. Remove the TFI module retaining screws. WARNING Step 5 must be followed EXACTLY; failure to do so will result in damage to the distributor module connector pins. To disengage the TFI module's terminals from the distributor base connector, pull the right side of the module down the distributor mounting flange and then back up. Carefully pull the module toward the flange and away from the distributor. Coat the TFI module baseplate with a thin layer of silicone grease (FD7AZ-19A331-A or its equivalent). Place the TFI module on the distributor base mounting flange. Position the module assembly toward the distributor bowl and carefully engage the distribut...