Car will not start, I know I know, but

Just like in diagram No room for error

I just replaced the transmission in my 99 Mazda Millenia S. I also replaced the starter because it wasnt working at all. Now, the starter engages but the crankshaft is not turning as it should to start the car. What is next?

The engine might be seized -try turning it manually

How do you mean to turn it manually? And, It all worked a few months ago before replacing the transmission, what would have caused the engine to seize?

My car was shaking and hesitating at 10mph and at 45mph iso i tuned it up now it wont start what can i do?mazda millenia 2.5 2001

Get a helper disconnect a sparkplug wire or 2 and ground it to the engine at least 3/16 away from ground -have helper crank engine over-do you have a snapping blue spark? If so-you have a fuel related problem,Do you hear the fuel pump come On when you turn key on? If not check fuel pump fuse and fuel pump relay if so, check the fuel pressure to rule out the fuel filter/fuel pump/pressure regulator and listen to the injector/s are they pulsing or hook up a noid light. No snapping blue spark continue to troubleshoot the ignition system-power input to the coil/coil packs,coil's resistances,distributor pick-up coil, ignition control module, cam and crank sensors and computer Note: If it doesn't apply disregard it.