2001 KW W900L with Cat 6NZ i need a new starter ciruit breaker but can't read the part number or amp size. Can anyone tell me?
Inside battery box on left wall I have a selenoid/relay and below it a breaker. Breaker has paint on it covering part of the numbers seen below.
AMP size for starter curcuit breaker
Discussion in 'Heavy Duty Diesel Truck Mechanics Forum' started by Bridgestreetblues, Dec 29, 2021.
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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.
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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. -
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
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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.
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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.
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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.
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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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