9400 Int'l shuts off and restarts after 30 seconds.

Discussion in 'Heavy Duty Diesel Truck Mechanics Forum' started by Rascal1953, Jul 11, 2020.

  1. Rascal1953

    Rascal1953 Bobtail Member

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    Feb 20, 2011
    Shelbyville, Tennessee
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    1990 Int'l 9400 has a B model Cat and shuts down every few minutes. After 30 seconds it will restart and run fine for a few minutes, then shuts off again. Everything in the cab loses power. After 30 seconds, it will start and run a few more minutes. Does anyone have a clue what is doing this?
     
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  3. BoxCarKidd

    BoxCarKidd Road Train Member

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    Aug 26, 2014
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    I would chase the big power supply wires for the cab right after it shuts down. Looking for problems at relays or breakers on the firewall and or in the cab.
     
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