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Electrical issues need help

Discussion in 'Peterbilt Forum' started by loginix, Nov 30, 2016.

Nov 30, 2016 #1
loginix Bobtail Member

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6

Aug 13, 2012

0
Can anyone identify this part, I need to know what it does and what it controls and can it effect my gauges etc... 1992 peterbilt 379
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loginix, Nov 30, 2016

loginix, Nov 30, 2016

#1
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Nov 30, 2016 #2

x1Heavy Road Train Member

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42,144

Mar 5, 2016

White County, Arkansas

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Starter box, once you trip it, it should crank the starter. That would be my guess.

It's very hard to guess a box without following the heavy wires to wherever it feeds.

x1Heavy, Nov 30, 2016

x1Heavy, Nov 30, 2016

#2

loginix Thanks this.
Nov 30, 2016 #3

Sharky88 Heavy Load Member

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Sep 25, 2013

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It's a salinoid big wires should go to the batteries and the started small wires to the ignition switch

Sharky88, Nov 30, 2016

Sharky88, Nov 30, 2016

#3
Nov 30, 2016 #4

Riprap Light Load Member

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May 31, 2014

Saginaw, MI

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That's a switch (or relay) that gives power to starter solenoid when you press the start button

Riprap, Nov 30, 2016

Riprap, Nov 30, 2016

#4

loginix Thanks this.
Nov 30, 2016 #5

Riprap Light Load Member

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May 31, 2014

Saginaw, MI

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Riprap, Nov 30, 2016

Riprap, Nov 30, 2016

#5

loginix Thanks this.
Nov 30, 2016 #6

loginix Bobtail Member

12

6

Aug 13, 2012

0

Thank you all.

loginix, Nov 30, 2016

loginix, Nov 30, 2016

#6
Nov 30, 2016 #7

Luwi67 Heavy Load Member

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Oct 24, 2012

Long island

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If you need to replace it, look for a "starter Mag switch".

Luwi67, Nov 30, 2016

Luwi67, Nov 30, 2016

#7