Could be the TDC Sensor, sometimes called the crankshaft Sensor.
Because it is rubbish :0
No. The engine starts the car.
A bad freeze plug will leak coolant and cause the engine to overheat.
Bad spark plugs can have a variety of effects on the performance of your car's engine. Signs of bad spark plugs include a rough idle, engine hesitation, hard starting, check engine light illuminated with a DTC P0300 and reduced engine power.
No fuel (out, or pump not pumping) or no spark (or really bad timing).
Hard starting and engine stalling. Eventually the filter will become completely clogged and the engine will not start.
hard starting in the morning. It could also mean hard starting when the engine is warm. If the sensor is bad, and the car is warm, it could be telling the computer the engine is cold, therfore making the warm engine hard to start because it will be telling the computer to add more fuel and the engine doesn't need it.
Weak battery, or starter going bad.
Engine coolant sensor may be bad
Lock up, No but a bad crank sensor will prevent the engine from starting.
Yes, you need spark for the engine to run.
A bad automotive air conditioner clutch typically won't prevent the engine from starting. However, if the clutch has seized or is causing excessive drag, it could lead to starting difficulties. In most cases, the engine will start, but the AC system may not function properly. It's advisable to have any issues with the AC system checked to avoid further complications.