I put the key in my 89 chevy k1500, and it turns , unlocks everything. but wont turn far enough to start. what could this be?

The ignition switch is the electrical switch located under the dash, not to be confused with the ignition (key cylinder). The ignition switch is the electrical switch located under the dash, not to be confused with the ignition (key cylinder).

Add a CommentIt has the main wire harness leading to it and is held in with two nuts. There is an actuator rod leading down inside of the column that engages the switch. After time the spring inside gets worn and prevents the key from turning all the way. I would remove it (unhook the battery first so the vehicle doesn't start while removing it) and test it for resistance. Wile it is out see if the ignition cylinder turns properly. Add a CommentIt has the main wire harness leading to it and is held in with two nuts. There is an actuator rod leading down inside of the column that engages the switch. After time the spring inside gets worn and prevents the key from turning all the way. I would remove it (unhook the battery first so the vehicle doesn't start while removing it) and test it for resistance. Wile it is out see if the ignition cylinder turns properly.

nevermind my last comment nevermind my last comment

Were you able to locate the ignition switch. There's a plug that goes into it and two small (5/16) nuts that hold it down. The rod runs along the inside of the column. Were you able to locate the ignition switch. There's a plug that goes into it and two small (5/16) nuts that hold it down. The rod runs along the inside of the column.