Assuming you need to replace the starter on your Ford f150:
1. Park your Ford f150 in a safe, level area and set the emergency brake. Disconnect the negative battery cable first, then the positive battery cable.
2. Locate the starter under the hood of your truck on the driver’s side. It will be attached to the engine block with two bolts. Remove these bolts with a socket wrench and pull out the starter.
3. Take your new starter and line it up with the holes where the old one was mounted. Insert and hand-tighten the bolts to hold it in place temporarily.
4 Reconnect both battery cables (positive first, then negative) and start up your truck to test whether or not the new starter is working properly