TEST OR INSPECTION
1. ENGINE FAILS TO CRANK WHEN STARTER IS ENGAGED CONTINUED
Although ignition lock switch must be on and battery ground cable connected to test
electrical circuit voltage, turn off ignition lock switch and disconnect battery ground
cable before doing resistance tests or replacing parts. This will keep you from getting
shocked and prevent damage to parts and equipment.
a. If starter (1) makes grinding noise or no sound is heard, go to step 2.
b. If solenoid (2) thumps but starter (1) does not spin, replace starter (page 2-460).
c. If starter (1) spins, go to step 23.
Check Ignition lock switch IGN terminal (3) and BATT terminal (4) for loose, corroded, frayed, and
If ignition wire terminal (5 or 6) or battery wire terminal (7) is loose, tighten nut (8 or 9)
using 3/18-inch box wrench.
If switch terminal (3 or 4) or wire terminal (5 thru 7) is corroded, clean using wire brush.
If switch terminal (3 or 4) is broken, replace Ignition lock switch and key (page 2-565).
If ignition wire terminal (5 or 6) or battery wire terminal (7) is frayed or broken, repair
Check starter switch terminals (10 and 11) and connector (12) for loose, corroded, and broken
a. If connector (12) is loose, push on all the way.
b. If terminals (10 or 11) or connector (12) are corroded, clean using wire brush.