When cranking to start fuse 27 blows

2003 GMC SAVANA
297,000 MILES
Avatar
JBGOOD
  • MEMBER
  • 1 POST
When the key goes into start position starter turns for one second then stops due to #27 crank fuse blown . Replaced starter and also park neutral switch.
Apr 5, 2020 at 5:18 PM
Repair Safety Notice: This information is for general instructional purposes only. Vehicle repair can be dangerous. Verify all information, follow manufacturer service procedures, use proper tools and safety equipment, and consult a qualified repair shop when needed.
Advertisement
Avatar
JACOBANDNICKOLAS
  • AUTOMOTIVE REPAIR CONTRIBUTOR
  • 110,190 POSTS
Hi,

There is a smaller wire to the starter (s terminal) that only receives power when the key is in the start position. I think the wire on this vehicle is purple. Most likely there is a short to ground between the relay and starter via that wire. Check to see if there is anything on that wire that appears it could be shorting.

Here are a few links that you may find helpful:

https://www.2carpros.com/articles/how-to-use-a-voltmeter

https://www.2carpros.com/articles/how-to-check-wiring

Let me know if you notice anything.

Joe
Apr 5, 2020 at 5:29 PM
Advertisement