Mastering CAT 3500B/3500C Engine Sensors: Location, Function ( in 10 minutes)

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Master the electronic sensor system on the Caterpillar 3500B and 3500C marine engines with this comprehensive guide. The video provides an in‑depth look at each sensor, clearly explaining its location, core function, and its role in communicating with the ECM. Designed for marine engineers, heavy‑duty diesel technicians, and maintenance managers, it helps enhance diagnostic and repair skills for CAT engines. Learn how sensor signals directly impact engine power, fuel consumption, and reliability, and gain the knowledge to read electrical schematics, accurately identify component locations, and understand the root cause of common DTC fault codes. 00:00 Introduction to Engine Sensors 01:13 Inlet manifold temperature sensor 02:05 Turbo inlet pressure sensors 02:51 Turbo outlet pressure sensor 03:26 Aftercooler temperature sensor 03:58 Atmospheric pressure sensor 04:30 Crankcase pressure sensor 05:36 Oil temperature sensor 06:15 Oil pressure sensors 06:54 Engine coolant temperature sensor 07:29 Fuel pressure sensors 08:32 Thermocouple 09:10 Turbo exhaust temperature sensors 09:45 Primary/Secondary speed and timing sensors 10:49 Magnetic pickup sensor