Will not start

100,000 MILES • 5.9L • V8 • 4WD • AUTOMATIC
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MAV7143
  • MEMBER
  • 1 POST
Would not start so I tried to jump and switched out the battery. It still did not start. I have checked all the connections and had a loose connection on the battery ground. Now it will not start with the key. I can manually engage the starter relay on the fuse box and it will start right up. I have changed out the relay fuse and the same thing happens. I can not get the starter relay to engage on its own. Any idea what I can try?
Dec 17, 2018 at 8:52 AM
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ASEMASTER6371
  • ✓Experienced Mechanic
  • 52,796 POSTS
Good morning,

I attached a wiring diagram for you to view. Can you get a volt meter or test light to do some voltage tests?

Check the fuse listed for power on both sides.

Pin 86 should have voltage in the start position.

Roy
Dec 17, 2018 at 12:37 PM
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