1996 ranger. 4 cyl manual transmission. Car started and ran great until it froze outside. Then a piece of the ignition tumbler broke off. Now the starter turns but not the engine. It's not the battery. I changed the ignition tumbler that the key goes into. Same problem. All the fuses are good. The fuses are grounded. I never smell gasoline under the hood after trying to start it except for this one time when I grounded a prong on the fuel pump relay and tried to start it. That time it smelled like gas very strong. How can I tell if the ignition is engaging in the full on position or if it is only in accessory mode? The lights and radio work fine with the key turned on. Thanks.