hi, im looking for an answer to a problem i have. i have a 2004 focus auto that i changed the box on. i bought a second hand gearbox. when i bolted the box on i didnt notice any resistance but when i went to start it the starter jammed. i thought maybe the splines were not aliigned and therefore the engine was jammed.after a couple of attemps the starter turned the engine fine but the car wont start. i have no spark at plugs and there doesnt seem to be fuel getting to cylinders. i have checked and rechecked all connections and tried new coil pack. is there a connection between engine "sieze" and not starting or am i just being daft and missing something. thanks for any help.