It will tell you it can not read the discc
You cannot physically put a clutch disk in backwards unless you force it together. If you do this you will destroy the clutch disc and possibly other clutch components.
pcv valve wont work properly
It rotates the other way. Yeah, right. You CANNOT put a flywheel on backwards. It's not physically possible to mate the flywheel with the crankshaft unless it is the correct direction.
You could have blown fuses, melted wiring or damaged computers.
When you connect the battery backwards you can cause major damage. You can blow the alternator or its fusible link. You can destroy electronics, particularly the various computers - and these are not cheap.
Rotors can only go in correctly one way and will usually snap in place. If you manage to put one in backwards the car will not start and it will likely tear up the cap and rotor.
Most of the time you cannot put these on backwards because the filters normally have a big end and a small end. Most are labeled in and out. But if this happens, the car will not run correctly when it is started because it will not have enough gas.
Jump in and see for yourself.
It will probably overheat. answer= thermostat will not open and will prevent the flow of coolant . which will in turn do damage to your engine
By connect a starter motor backwards I assume you mean put the negative cable where the positive cable would go and then put the positive cable to the negative connection. In that case the starter motor should run backwards. That might be a handy thing to do if you are using a starter motor to power something else such as a winch or maybe a pump.
Yes but dont jump it from the battery on the transit under the boonet there is a steel eye use that to earth the jump leads then put the red jump lead on the red lead under the bonnet its like a battery lead it will have a red plastic cover on it thats where you jump a transit from do not jump directly from the battery