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Contents of this tutorial:.You can find this tutorial in Spanish here: (at: autotecnico-online.com). Important Tips And SuggestionsTIP 1: The crank sensor is located on the timing chain cover. More specifically, it's located to the right (passenger side) of the crank pulley and behind the A/C compressor.TIP 2: It's very important that the battery on your Ford car (pick up or SUV) must be fully charged for this test. The battery must have enough reserve power to crank the engine easily for several seconds.TIP 3: You'll need to jack up the vehicle to gain access to the crank sensor. Use a jack stand to hold the car up in the air. Do not trust the jack!
P0345 Camshaft Position Sensor Circuit Malfunction Bank 2. I have a 2004 F150 Fx4 with the 5.4 motor. It has 183k miles. 05 Expedition 5.4 P0345/P0349.
Wear safety glasses to protect your eyes from falling debris. Think safety all of the time!TIP 4: When the crank sensor goes BAD, you'll get a No Spark- No Start Condition. So, if you're getting spark from the ignition coil pack or the Coil-on-Plug ignition coils. The crank sensor is good and this test will not help you.Since so many things can cause a ‘cranks but does not start’ condition, the following tutorial may give you some more diagnostic/troubleshooting insights:.How Does The Crank Sensor Work?The crank sensor is one of the most critical components to get the engine in your Ford car (pick up, SUV, van) started. Since it provides the signal the PCM needs to start injecting fuel and start creating spark.Here are some specifics of the crankshaft position sensor:The 4.6L, 5.4L crank sensor is a two wire variable reluctance sensor.
Coil-on-Plug (COP) Ignition System: If your specific Ford vehicle does not use an ignition control module and is the Coil-on-Plug ignition system type:. The crank sensor signal is sent directly to the PCM. The PCM, once it gets the crank sensor signal:. The PCM activates the Coil-on-Plug ignition coils to start sparking. The PCM activates the fuel injectors. So, with both fuel and spark being fed to each engine cylinder, the engine in your Ford car (or pick up, van, SUV) starts.In the next section, I'll go into some of the symptoms of a BAD crank sensor.
5If the crankshaft position (CKP) sensor is working correctly, the multimeter will register an an oscillating voltage between.5 to 1 Volt AC.Now, to be a bit more specific: your multimeter will not register a steady AC voltage. Instead, the reading will jump between.5 Volts AC to 1 Volt AC continually as the engine is cranking and only when the engine is cranking.Alright, let's find out if you have a BAD crank sensor on your hands or not.
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