If the car is on and the knocking seems to be coming from around the engine, then the engine could be low on oil. You need to put oil in it immediately or run the risk of ruining your engine.
You also could have a stuck valve or maybe your rod is knocking the rod will knock due to improper o ring around it which doesnt give you very good seal inside of a piston.
You being a pervert.
A vacuum leak (Brake booster).
No.
what causes the rear lights to stay on while engine is running. the car is park
If you are walking with no car, how can it be in Park?
It could be lifters ir maybe the car ran hot and the motor damaged.
If the car is automatic you must have the footbrake applied to shift from park.
Engine miss.
the neatrul switch
I would suspect the park pawl gear is broken.
Defective fuel pump, or clogged fuel filter is one cause.
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