Normal Operation
WARNING: This page is about a different car, the 2013 Ford F-550 Super Duty, 2013 Ford F-450 Super Duty, 2013 Ford F-350 Super Duty, and 2013 Ford F-250 Super Duty. However, it is still accessible from the selected car via links, so may be relevant.
A discharged battery, excessive starter draw or high resistance in the battery cables are the most likely causes of a slow cranking engine. It is also possible for internal, mechanical engine damage to result in the engine cranking slowly.
This pinpoint test is intended to diagnose the following:
- Battery
- Battery cables
- Wiring, terminals or connectors
- Starter motor