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Why does ECM fuse blowout?

Tiny
SID66
  • MEMBER
  • 2000 CHEVROLET SILVERADO
  • 14,400 MILES
Truck was idling, then it shut off. I tried to start it and noticed ecm fuse was blown. Replaced fuse and they continued to blowout as soon as I turned key. I replaced ecm but fuse continued to blowout.
Thursday, November 10th, 2011 AT 12:53 AM

1 Reply

Tiny
ASEMASTER6371
  • MECHANIC
  • 52,797 POSTS
Most of the time it will be a shorted o2 sensor or ignition coil, unplug then all and replace the fuse, then plug the components in one at a time until the fuse blows. This will be the part that needs to be replaced. Please let us know what you find. We are interested to see what it is.
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Thursday, November 10th, 2011 AT 1:07 AM

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