5. If the voltage reading is greater than 0.5 volt, clean the negative cable connections at the battery, the body ground connections and the starter ground connection. Retest.
6. If the voltage reading is greater than 0.5 volt, install a new negative battery cable.REFER to: Battery Cables - 3.7L Duratec (227kW/301PS) .
7. If the voltage reading is less than 0.5 volt and the engine still cranks slowly, install a new starter motor.REFER to: Starter Motor .
GENERAL PROCEDURES > STARTER MOTOR DRIVE GEAR AND FLYWHEEL RING
GEAR INSPECTION
Inspection
1. Remove the starter motor. Refer to: Starter Motor .
2. Check the wear patterns on the starter drive gear and the flywheel or flexplate ring gear. If the wear pattern is normal, then install the starter motor. Refer to: Starter Motor .
3.
Original technical text and illustrations, formatted as HTML. Follow the engine, transmission, equipment, model and year specified in the source. Import and layout checks do not establish applicability to every 2015–2017 Mustang. About this collection.