Check the egr valve.
There is a gear positioning sensor on the transmission. Some go bad and need to be replaced. When they go bad they signal that the transmission is in drive or reverse when you are in park and does not allow you to start the car. Try starting in neutral, if that doesnt work then you will need to replace this part.
Drierside under car. Up on left front of transmission case. Transmission pressure switch. If it doesnt see transmission fluid pressure the car will not start.
Seized engine? Loose or cooroded battery terminal Bad starter solenoid? Bad neutral or clutch safety switch?
Transmission or clutch slipping?
no it doesnt
It would be your cerpentine belt that runs our "extras" on your engine or your transmisson. Best thing to stop it would be to change the belt under the hood on the engine. If that doesnt work change your transmission fluids.
it doesnt matter
Probably do to a bad pressure plate and or clutch plate. I would first check linkage adjustment and slave cylinder before changing clutch.
It has a lot to do with the fact that the heat provided when you turn the heater on comes from the engine. the faster your engine is reving the more heat you'll get. Next time try putting the car in neutral and revving the engine. that should get you some more heat.
Could be either a rod bearing that doesnt move much until a load has been put on the engine or could be a sticking lifter - hard to tell as either sound changes when a load is put on the engine
If it is automatic....check the cable.
it doesnt have one.