Battery wiring KW W900

Discussion in 'Trucks [ Eighteen Wheelers ]' started by Hanadarko, Jul 28, 2010.

  1. Hanadarko

    Hanadarko Independent Owner/Operator

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    Thanks..its not something some schmo installed, since it has KW decals/info on it.
    So I am sure its needed...
     
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  3. Hanadarko

    Hanadarko Independent Owner/Operator

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    What about the jumpstart/charging posts behind the sleeper?
    Some of the guys I talk to removed those since they had had issues with shorting and what not. Are they worth it to keep there and if not, are they all that hard to remove?
     
  4. rjones56

    rjones56 Heavy Load Member

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    Not hard to remove.Save cable in case you need to replace another later on.If you are having starting issues,while you have batteries unhooked,checkyour connections at the starter.sometimes you need to tighten the inner nuts on all the starter posts.These often get overlooked when diagnosing starting systems.
     
  5. Hanadarko

    Hanadarko Independent Owner/Operator

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    I am having very intermittant starter issues. Turn the key...nothing.
    Hit it again, usually it fires...sometimes needs a 3rd hit.
    But you can go weeks w/o having any issues....

    ~
    I puchased the solenoid next to the battery box too. Dealer told me she sells a lot of those. I dont think I see any reason for that charge post and its one more point of failure or corroision. I might have to SawZall the post..the bolts and stuff appear to be really rusted. Heck, the charging post itself is total rust and all of the connections are nice and green.
     
  6. droy

    droy Heavy Load Member

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    Before I would start removing wires, wrap a piece of gray tape on each battery cable/wire, get a permanent marker, assign a number, and voltage orientation ( i.e. #1 positive), then take pictures, definitely draw a diagram, take more pictures and find an identical model truck to park near by at re-assemble time.
    Did not do this for the linkage bushing and wiper motor replacement for an earlier (1996) W9. Sold that truck about a year later, never did get the wipers corrected, close, but not a 100%.
     
  7. droy

    droy Heavy Load Member

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    Check starter post with test light while someone turns key to crank motor. IR thermometer is usually big help also, (resistance = heat). Check ALL ground wires! Check that metal ground strap from solenoid to starter (sometime all you need to do is take a 3/4 " wrench loosen, then tighten the nuts.
     
  8. broncrider

    broncrider Road Train Member

    lol

    its your tumbler

    mine does it all the time, as do most paccar

    clean, replace and coat your terminals..........replace the tumbler if you really want to
     
  9. droy

    droy Heavy Load Member

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    FOUL!!!!!!
    Electrical problems need at least two days of troubleshooting before correct answer is allowed!
     
    TGUNKEL Thanks this.
  10. Hanadarko

    Hanadarko Independent Owner/Operator

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    I will replace the starter solenoid 1st and then go from there. It doesnt act up enough to troubleshoot...yet...
     
  11. xTHANATOPSISx

    xTHANATOPSISx Light Load Member

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    The easy way to troubleshoot the solenoid in the battery box is to hold the key down when it doesn't start and kick the box. Typically it will start right up if it's the solenoid. Mine does the same thing rarely in the summer. Maybe 5 times all summer. In the winter, it does it almost any time its below about 35f and the truck has been off for more than a couple minutes. Needless to say, I carry a new solenoid with me, it's just not annoying enough to replace it yet.
     
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