![]() One minute you’ll be driving down the road with no issues and the next your trusty 7.3 liter diesel will simply die. Failed 7.3 CPS sensors have left many 7.3 Powerstroke drivers broken down along the side of the road. So, guess what happens if your 7.3 CPS is malfunctioning? 7.3 Cam Position Sensor Symptomsĭying at idle over a period of weeks or months can signal an imminent 7.3 CPS failure. It also helps in adjusting things like RPM to ensure smooth idle and operation of the engine. Then the PCM can deliver the fuel at the precise moment it’s needed. Since the cylinder #1 and cylinder #4 indicator windows are narrower and wider, respectively, than the other windows on the cam wheel, the 7.3 cam sensor can tell which cylinder is about to hit top dead center- TDC. The magnet’s job is to sense the spokes and gaps (windows) on the camshaft wheel. The inserted end of the 7.3 CPS is a magnet. Knowing this allows the engine powertrain control module ( PCM) to adjust fuel injection timing to provide smooth combustion to your diesel truck.Īnd that means that it helps your 7.3 Powerstroke diesel engine deliver fuel to the right cylinder at the right moment in the timing sequence. Simply put, the 7.3 cam position sensor identifies which cylinder is at top dead center-the combustion stroke.
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