crankshaft position sensor
crankshaft position sensor
o2 sensor
02 sensor
no
crankshaft position sensor
The exhaust valves are the hottest component of the exhaust system of an internal combustion engine.
If the sound is coming from inside the engine, an internal part has failed.If the sound is coming from inside the engine, an internal part has failed.
The headlight is not a part of the emissions system.
Very quickly an uncooled engine will get so hot that the moving pistons weld themselves into their cylinders, ruining the engine. The oil system is part of that cooling process, by the way.
Oxygen sensor is considered part of the emissions management system, the crankshaft sensor is considered part of the electronic control system. So NO on both
Dunnage
Hottest part is the piston crown....