Archived 20 amp fuse blowing - no codes set

[JBCumminatya]

Got in the truck yesterday afternoon. Turned the key to start the engine. Nothing happened.



I removed the power distribution center cover and looked at the layout of the fuses and relays. Found that a 20 amp fuse labeled "20 AMP START SOL" was blown. Replaced the fuse with another 20 amp. Fuse lit up like a small flashbulb when the key was turned to start the engine. Checked for codes, none were set.



Looked in my 2000 service manual(big orange book)and found that "20 AMP START SOL" is not even listed???



Any help would be appreciated.

 

[GAmes]

Sounds like either the solenoid or the starter has a dead short. I'm sure there may be a better way to do this, but one way would be to disconnect the starter wire and maybe sacrifice another fuse. If it blows again I would think that a wire has rubbed on something and is shorting out.

 

[JBCumminatya]

Replaced the starter. Fuse still blows. Will be getting old starter back.

 

[JPope]

Fuse Blowing

Wasn't there a TSB out about trucks getting out with the wrong size fuse, 20 amp in lieu of proper 25amp? Do not know but do a TSB search, amybe this will help? Maybe it was 2001 or so?

 

[gregdoerfler]

i would find the wire that goes to the solenoid (about 16 gauge brown on mine) and trace it back most likely it rubbed through somewhere, mine did the same thing. cant remember where it was for sure. hope this helps!

 

[JBCumminatya]

Replaced the ignition switch. Problem solved.