AMP size for starter curcuit breaker

Discussion in 'Heavy Duty Diesel Truck Mechanics Forum' started by Bridgestreetblues, Dec 29, 2021.

  1. Bridgestreetblues

    Bridgestreetblues Light Load Member

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    Last edited: Dec 29, 2021
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  3. bjytech

    bjytech Light Load Member

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    that should be a 135amp breaker, you can check to make sure that it is bad by jumping the 2 terminal on it to see if you get your power back.
     
  4. Bridgestreetblues

    Bridgestreetblues Light Load Member

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    Just figured that out, says it right on there but didn't know if it was just part of the part number. Yeah like old school cars jumping a selonoid. Thank you sir hope it's nothing else. Dumb move on my part. Can't thank you enough.
     
    bjytech Thanks this.
  5. Bridgestreetblues

    Bridgestreetblues Light Load Member

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    WTF??? So I went to try jumping the breaker today as you suggested and did not do anything, did not even take the battery cover off and figured I'd stick the key in. I was going to turn the key before I used a big screwdriver to jump the breaker. Well the key worked, buzzer came on and it turned over like nothing was wrong. I must have a bad connection somewhere or maybe the ignition switch is going bad. Well needless to say I'm happy? I guess but hopefully I figure out why. Electrical gremlins are no fun chasing.
     
    Last edited: Dec 30, 2021
  6. A5¢

    A5¢ Medium Load Member

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    If doing what you did got it going, you may have the same thing happen again. It sounds like there is a dirty/loose connection.
     
  7. Bridgestreetblues

    Bridgestreetblues Light Load Member

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    I didn't do anything, yesterday nothing at ignition switch, today normal. So I'm going to start with the ignition switch and check all connections.
     
  8. bjytech

    bjytech Light Load Member

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    I can't remember exactly how that specific breaker works but I'm thinking it is a thermal breaker, which would mean after it has sufficient time to cool down it resets itself. Not sure why I never though of that yesterday, I would double check the connections on it just to make sure they are secure just to make sure there isn't another connection issue.
     
  9. Bridgestreetblues

    Bridgestreetblues Light Load Member

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    Ok sir did not know that. That's is something. Glad to know that because I was blown away today when that happened. I ordered a new one anyway and the solenoid right next to it simply because the look old and corroded. Cant hurt. I knew something had to trip when I arched that lead to the alternator.
     
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