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2001 ford expedition fuel pump wiring test

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1993 Ford Escort CIRCUIT TEST J – FUEL PUMP CIRCUIT (RELAY AND INERTIA SWITCH)

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resistance between test pin No. 22 and test pins No. 40 and 60. If resistance is less than 10,000 ohms, repair short circuit and repeat QUICK TEST. If resistance is 10,000 ohms or more, go to step 5). 5)Check Fuel Pump Circuit Continuity Turn ignition off. Leave fuel pump relay and PCM disconnected. Measure resistance between FUEL PUMP circuit at fuel pump relay wiring harness connector and test pin No. 22 at breakout box. If resistance is less than 5 ohms, replace PCM and repeat QUICK TEST. If resistance is 5 ohms or more, repair open circuit and repeat QUICK TEST. 10)Code 95/542 A KOEO Code 95/542 indicates one of the following conditions: Engine Starts: * Fuel pump secondary circuit shorted to power. * Fuel pump relay contacts always closed. * Open FPM circuit between PCM and junction to POWER-TO-PUMP circuit. * Left/front HO2S short to power (dual HO2S applications). * Faulty PCM. No Start: * IFS switch circuit open or not reset. * Open circuit in or between PCM and fuel pump. * Faulty ground connection at fuel pump. * Faulty fuel pump. If engine starts, go to step 11). If engine does not start, go to step 15). 11)Check Fuel Pump Operation Turn ignition on. Wait 5 seconds. Listen for fuel pump operation. If fuel pump is off, go to step 13). If fuel pump is on, go to step 12). 12)Check For Fuel Pump Relay Always Closed Turn ignition off. Disconnect fuel pump relay. Turn ignition on. If fuel pump is off with relay disconnected, replace fuel pump relay and repeat QUICK TEST. If fuel pump is on with relay disconnected, repair short to power in POWER-TO-PUMP or FPM circuit. (For models with relay block, also check fuel pump prime plug circuit). Repeat QUICK TEST. 13)Check Continuity Of Fuel Pump Monitor (FPM) Circuit Turn ignition off. Disconnect PCM 60-pin connector. Inspect and repair any damaged terminals. Install EEC-IV Breakout Box (T83L-50-EEC-IV) , leaving PCM disconnected. Disconnect fuel pump relay. Measure resistance between test pin No. 8 (No. 19 on Escort, and Tracer) at breakout box and POWER-TO-PUMP circuit at fuel pump relay wiring harness connector. If resistance is less than 5 ohms, go to step 25) (dual HO2S) or replace PCM and repeat QUICK TEST (single HO2S). If resistance is 5 ohms or more, repair open circuit and repeat QUICK TEST

Ford 455C 555C 655C Tractor Loader Backhoe Service Manual

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Engine Systems Chapter 1 3-Cylinder Diesel Engine 3-Cylinder Diesel Engine – Description and Operation 3-Cylinder Diesel Engine – Overhaul Chapter 2 4-Cylinder Diesel Engine 4-Cylinder Diesel Engine – Description and Operation 4-Cylinder Diesel Engine – Overhaul Chapter 3 Cooling System Cooling System – 3-Cylinder Engine Description and Operation Cooling System – 4-Cylinder Engine Description and Operation Cooling System – Overhaul Chapter 4 Troubleshooting, Specifications and Special Tools Troubleshooting Specifications Special Tools Part 2 Fuel Systems Chapter 1 Fuel System – General Fuel System – Description and Operation Fuel System – Adjustments DPA Distributor Type Fuel Injection Pump Fuel System – Adjustments DPS Distributor Type Fuel Injection Pump Fuel System – Fuel Tanks, Filters and Fuel Lines Overhaul Chapter 2 Fuel Injection Pump – DPA Distributor Type Fuel Injection Pomp – Description and Operation Fuel Injection Pump – Overhaul Fuel Injection Pump – ISO Test Conditions Fuel Injection Pump – Test Procedures Chapter 3 Fuel Injection Pump – DPS Distributor Type Fuel Injection Pump – Description and Operation Fuel Injection Pump – Overhaul Fuel Injection Pump – ISO Test Conditions Fuel Injection Pump – Test Procedure Chapter 4 Injectors Ford 455C Injectors – Description and Operation Injectors – Overhaul Chapter 5 Injectors Ford 555C and 655C Injectors – Description and Operation Injectors – Overhaul Chapter 6 Air Cleaners Dry Type Air Cleaner – Description and Operation Dry Type Air Cleaner – Overhaul Chapter 7 Turbocharger Turbocharger – Description and Operation Turbocharger – Overhaul Chapter 8 Troubleshooting, Specifications, Test Plans and Special Tools Troubleshooting – Diesel Engines Troubleshooting – Turbocharger Specifications Special Tools Test Plans Part 3 Electrical System Chapter 1 Wiring, Lights and Controls Wiring, Lights and Controls – Description and Operation Wiring, Lights and Controls – Fault Finding and Repair Circuit Diagrams and Wiring Harness Chapter 2 Battery
Battery – Description and Operation Battery – Maintenance and Tests Chapter 3 Starting System Starting System – Description and Operation Starting Motor – Overhaul Chapter 4 Charging System – A127 55 Amp Alternator with Integral Regulator Charging System – A127 55 Amp Alternator with Integral Regulator – Description and Operation Charging System – A127 55 Amp Alternator with Integral Regulator – Service Precautions, Preliminary Checks, Initial Tests and Alternator Component Tests Charging System – A127 55 Amp Alternator with Integral Regulator – Overhaul Chapter 5 Troubleshooting, Specifications and Special Tools Troubleshooting Specifications Special Tools Part 4 Power Reversing Transmission Chapter 1 4×4 Fully Synchronized Power Reversing Transmission Power Reversing Transmission – Description and Operation Introduction to Overhauling the Transmission Gear Shift Lever, Modulator Unit and Solenoid Control Valve – Overhaul Front End Overhaul Complete Overhaul Component Overhaul Chapter 2 8X8 Fully Synchronized Power Reversing Transmission Power Reversing Transmission – Description and Operation Introduction to Overhauling the Transmission Gear Shift Lever, Modulator Unit, Lockup Valves and Solenoid Control Valve – Overhaul Front End Overhaul Complete Overhaul Component Overhaul

2000 Ford Windstar INCORRECT FUEL GAUGE INDICATION Workshop Manual

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The fuel gauge does not change indication unless there has been at least 3 gallons of fuel added or deleted between ignition switch cycle. Use recorded REM and instrument cluster DTCs from the Continuous and On- Demand self-test. ? Are any DTCs recorded? Yes If REM DTC B1201 or IC DTC U1131 is retrieved, GO to D6 . No GO to D2. D2 CARRY OUT THE ICM FUEL GAUGE ACTIVE COMMAND IC Active Command Select the IC FUEL GAUGE CONTROL active command. Trigger FUELLEVEL active command. Toggle and monitor the fuel gauge while adjusting the FUELLEVEL active command to read 50% and 100% Did the fuel gauge needle start at empty (E), move to half at 50%, and full (F) at 100%? Yes GO to D3. No INSTALL a new instrument cluster; REFER to Instrument Cluster. CLEAR the DTC. REPEAT the instrument cluster self-test. D3 CHECK THE FUEL GAUGE READING Fuel Pump Module C412 Connect one lead of Instrument Gauge System Tester to fuel pump module C412 Pin 5, Circuit 1357 (LB/YE), harness side. Connect the other lead to fuel pump module C412 Pin 8, Circuit 1356 (LG/VT), harness side. Set the power switch on Instrument Gauge System Tester to the ON position Set Instrument Gauge System Tester to 15 ohms. Wait one minute. Set Instrument Gauge System Tester to 160 ohms. Wait one minute. Read the fuel gauge. The fuel gauge should read full or above. Set Instrument Gauge System Tester to 15 ohms. Wait one minute. Read the fuel gauge. The fuel gauge should read empty or below Does the fuel gauge operate correctly? Yes GO to D4. No GO to D6. D4 INSPECT THE FUEL TANK Visually inspect the fuel tank for any damage or deformation. ? Is the fuel tank OK? Yes GO to D5. No INSTALL a new fuel tank. REFER to Section 310-01. TEST the system for normal operation. D5 INSPECT THE FUEL LEVEL SENSOR AND PUMP ASSEMBLY Visually inspect the fuel pump assembly for damaged wiring or connectors. Visually inspect the float and float rod for damage or obstruction

1996 Ford Taurus Camshaft Position Sensor removal and installation manual

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REMOVAL CAUTION: Prior to removal of the Camshaft Position (CMP) sensor, set cylinder No.1 to zero degrees Top Dead Center (TDC) of compression stroke. Then note the position of the CMP sensor electrical connector. The installation procedure requires that the connector be located in the same position. 1. Disconnect battery ground cable. NOTE: When the battery has been disconnected and reconnected, some abnormal drive symptoms may occur while the Powertrain Control Module (PCM) relearns its adaptive strategy. The vehicle may need to be driven 16 km (10 miles) or more to relearn the strategy. 2. Disconnect engine control sensor wiring connector from CMP sensor. 3. Remove retaining screws and CMP sensor from sensor housing. 4. If removing CMP sensor housing from the cylinder block, proceed with Removal Step 5. If not removing sensor housing, proceed to installation Step 6. 5. Remove hold-down clamp (bolt and washer assembly) . 6. Remove CMP sensor housing from cylinder block INSTALLATION CAUTION : A special service tool such as Syncro Positioning Tool T95T-12200-A must be obtained prior to installation of the replacement CMP sensor. Failure to follow this procedure will result in improper sensor alignment. This will result in the fuel system being out of time with the engine, possibly causing engine damage. 1. Attach Syncro Positioning Tool T95T-12200-A as follows: a. Engage CMP sensor housing vane into the radial slot of the tool. b. Rotate tool on CMP sensor housing until tool boss engages notch in sensor housing. 2. Pre-lubricate synchronizer gear with engine oil meeting Ford specification ESE-M2C123-A prior to assembly. 3. Install sensor housing so that drive gear engagement occurs when arrow on ocator tool is pointed approximately 75 degrees counterclockwise from the rear face of the cylinder block. This step will locate CMP sensor electrical connector in the pre-removal position. 4. Rotate Syncro Positioning Tool T95T-12200-A clockwise slightly. This will engage oil pump intermediate shaft. Push downward while adjusting Syncro Positioning Tool T95T-12200-A until the Syncro Gear engages the camshaft gear. 5. When synchronizer flange is fully seated against block, the installation tool should be facing counterclockwise of engine centerline approximately 33 to 45 degrees. 6. Install hold-down clamp (washer and bolt) and tighten bolt to 19-30 Nm (14- 22 lb ft)

1998 Dodge Grand Caravan Fuel Pump Relay Removal And Installation Manual

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Fuel Pump Relay 1. Remove fuel pump relay from power distribution center at driver’s side front corner of engine compartment, near the battery. Note terminal identification on fuel pump relay. See Fig. 6 . 2. To check fuel pump relay resistance, use ohmmeter and check resistance between terminals No. 85 and 86 on fuel pump relay. Replace fuel pump relay if resistance is not 70-80 ohms. 3. To check fuel pump relay operation, connect ohmmeter between terminals No. 30 and 87A on fuel pump relay. See Fig. 6 . Ohmmeter should indicate continuity between terminals No. 30 and 87A on fuel pump relay. 4. Connect ohmmeter between terminals No. 30 and 87 on fuel pump relay. See Fig. 6 . Ohmmeter should indicate no continuity between terminals No. 30 and 87 on fuel pump relay. 5. Connect 16-gauge jumper wire between negative battery terminal and terminal No. 85 on fuel pump relay. Connect 16-gauge jumper wire between positive battery terminal and terminal No. 86 on fuel pump relay. 6. Fuel pump relay should now be energized. No continuity should now exist between terminals No. 30 and 87A on fuel pump relay. Continuity should now exist between terminals No. 30 and 87 on fuel pump relay. Disconnect jumper wires. Replace fuel pump relay if defective. 7. If fuel pump relay or wiring circuit failure exists, a Diagnostic Trouble Code (DTC) will be stored in Powertrain Control Module (PCM). See appropriate G – TESTS W/CODES article. Fig. 6: Identifying ASD Relay & Fuel Pump Relay Terminals Courtesy of CHRYSLER CORP.