I have another question on my 2000 W900L with the 12.7 Detroit. It looks like the Jake switches were added to the dash, there are new holes drilled by the differential switch. But the jake seems to only work on the 1st stage no matter the switch position. Not sure if it is wired properly or if the switch just doesn't work. Is there a wiring diagram somewhere to compare how these switches are wired. Or where should one start? Really need the 3rd stage working, 1st stage doesn't help any coming off of mountain passes. Thanks for any info!
2000 Kenworth W900L Jake Brake Wiring
Discussion in 'Heavy Duty Diesel Truck Mechanics Forum' started by Montanajon, Jul 10, 2021.
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Did you try looking at the Detroit engine harness wire to the left?
Montanajon Thanks this. -
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If you list the last 6 of the vin someone maybe able to provide some info from KW.Montanajon Thanks this. -
Anyway last 6 of vin 359589BoxCarKidd Thanks this.
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