SPONSORED LINKS

Battery, alternator or electrical

Tiny
JO BUCKMEIER
  • MEMBER
  • 2006 GMC YUKON
  • 5.7L
  • V8
  • AWD
  • AUTOMATIC
  • 200,000 MILES
Well my electrical went hay wire, then all my gauges went out, no power, so turned off vehicle and it would not restart, no click, no power, nothing. Put in new battery and new alternator, drove around block, lost all electrical again, turn off truck and will not start again and no power, nothing. 40 amp fuse under hood is blown. What is wrong? Checked battery amps, all is good. Help, please.
SPONSORED LINKS
Tuesday, August 16th, 2016 AT 11:41 PM

3 Replies

Tiny
HMAC300
  • MECHANIC
  • 48,601 POSTS
Which fuse? Follow wires to where they are connected in diagram then see if there is a short causing it could be ignition switch or a direct short.
Image (Click to make bigger)
Thumb
Was this
answer
helpful?
Yes
No
Wednesday, August 17th, 2016 AT 7:32 AM
Tiny
JO BUCKMEIER
  • MEMBER
  • 2 POSTS
It is the 40 amp #1 stud fuse. Would that cause no power or crank what so ever?
SPONSORED LINKS
Was this
answer
helpful?
Yes
No
Wednesday, August 17th, 2016 AT 9:05 AM
Tiny
HMAC300
  • MECHANIC
  • 48,601 POSTS
Yes, because yo are not getting power to either ignition switch to work or starter relay. If either one does not get any power it is not going to start.
Was this
answer
helpful?
Yes
No
Wednesday, August 17th, 2016 AT 9:41 AM

Please login or register to post a reply.

Related Alternator Fuse Content

How to Use a Test Light
VIDEO
How to Use a Test Light
Instructional repair video
Alternator Replacement
GUIDE
Alternator Replacement
Got a red battery warning light on? This most likely means the alternator has gone out and needs a replacement. To confirm the failure use a voltmeter to test the alternator...
VIEW MORE

Sponsored links