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2008 5 ton Sterling,with a 6.7 cummins-Check gauge warning light?

Discussion in 'Truck & Equipment Repair' started by cl733, Dec 23, 2013.

  1. cl733

    cl733 Senior Member
    from Canada
    Messages: 252

    Its got a 86110 blizzard on it, it did it most of last winter too, put new batteries in it last winter hoping that was it but its still throwing a code- Check gauges. Its from using the blade , the high current draw from the plow motor I believe. I suggested to the guy to draw blade power from the second battery down stream from the alternator but I don't think he has even looked at that yet , but has anyone had this problem , and what have they done about it
     
  2. mnglocker

    mnglocker Senior Member
    Messages: 923

    What size is the alternator?
     
  3. cl733

    cl733 Senior Member
    from Canada
    Messages: 252

    Not sure what it was , it is what ever came stock on it though
     
  4. mnglocker

    mnglocker Senior Member
    Messages: 923

    Check the purchase sheet. It may have come with a skimpy 100 amp unit. If that's the case, I'd bet you could get a 160-200 amp unit off a ram truck. That or you need to find provisions for a second alternator. Another possibility is to get an overdrive pully for your alternator so that it spins faster keeping current production up. You already have two big batteries, so it's a matter of getting supply current.
     
  5. Whiffyspark

    Whiffyspark 2000 Club Member
    from SOMD
    Messages: 2,402

    What makes you sure its the plow causing the problem? Theres no code for "check guages"
     
  6. mnglocker

    mnglocker Senior Member
    Messages: 923

    Actually, on a Cummins PCM there is. It's P0193. Gauges out of limits/parameters.
     
  7. cl733

    cl733 Senior Member
    from Canada
    Messages: 252

    Well when you shut the truck off it resets, it will go forever and a day with no code showing up, it has an electric dump pump on that never sets off the code , but the minute it hooks onto that blade and the blade gets lifted it shows up a code check gauges, I cant find no cause for that code anywhere, when I get back around the truck I will run a scan on the OBD11 port and see if anything shows up but I doubt it will, its confusing, it does this what seems like every winter but it just keeps going
     
  8. mnglocker

    mnglocker Senior Member
    Messages: 923

    Plows will pull about 120-150 amps. That's a huge draw for most systems. You really need an alternator making about 50 amps better than the draw of the plow if you are non-stop up-down-angling the blade.
     
  9. cl733

    cl733 Senior Member
    from Canada
    Messages: 252

    I think that plow pulls around 175 , could be wrong, but I know its large, never seen the voltage drop to a lower level, we tried a new alternator on it last year too,
     
  10. cl733

    cl733 Senior Member
    from Canada
    Messages: 252

    I run a 93 cummins with 2 group 65 batteries I put in 3 years ago now and plow with a PP 8100 , we are always in strata properties and tight places , I still have my original alternator on that truck, 177K on it , maybe im on borrowed time with it , but that things runs that plow all night long and never once has it let me down , ive been waiting for it to give me problems but it just keeps surprising me
     
  11. mnglocker

    mnglocker Senior Member
    Messages: 923

    I'd see if I could find an ambulance prep pack engine bracket kit. That will allow for a 2nd alternator.
     
  12. Whiffyspark

    Whiffyspark 2000 Club Member
    from SOMD
    Messages: 2,402

    I wonder if the plow power cables have resistance in them?
     
  13. dieselss

    dieselss PlowSite Fanatic
    Messages: 10,968

    What's the voltage drop while raising the plow? Below 12v?
     
  14. mnglocker

    mnglocker Senior Member
    Messages: 923

    To clarify, are you talking system voltage drop, or voltage drop across the power supply to the plow pump?
     
  15. dieselss

    dieselss PlowSite Fanatic
    Messages: 10,968

    Well entire system. Then narrow it dwn by plow volt drop.
     
  16. mnglocker

    mnglocker Senior Member
    Messages: 923

    Good point. Anything below 12.6vdc will full field the alternator on a 12volt system. If your truck runs a 24vdc system, double that to 25.2vdc.
     
  17. cl733

    cl733 Senior Member
    from Canada
    Messages: 252

    of course the volt needle wiggles, but not a drop to 10v , was on some cummins forums and I see this isn't an isolated problem, seems it happens to a lot of people without any real cause known, this truck just has a driver on it so, the actual sequence of events may differ , ill go see if I get a scan code out of it this afternoon,
     
  18. Whiffyspark

    Whiffyspark 2000 Club Member
    from SOMD
    Messages: 2,402

    Measure it with a voltmeter. You want to check voltage through each wire. From alt to battery. Battery to solenoid. Etc. Same on ground side