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Water Temp Gauge problem - HELP!

Discussion in 'Trucks [ Eighteen Wheelers ]' started by Chadwick, Mar 1, 2013.

Page 2 of 3
  1. Mar 10, 2013 #11
    puncher

    puncher Medium Load Member

    540
    358
    Feb 12, 2010
    Tn.
    0
    Yes they can go bad.
     
    puncher, Mar 10, 2013
    puncher, Mar 10, 2013
    #11
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  3. Mar 10, 2013 #12
    Chadwick

    Chadwick Light Load Member

    73
    6
    Apr 3, 2012
    Oregon
    0

    Would it be giving me these symptons?
     
    Chadwick, Mar 10, 2013
    Chadwick, Mar 10, 2013
    #12
  4. Mar 10, 2013 #13
    logging pete

    logging pete Bobtail Member

    14
    4
    Aug 1, 2010
    woodruff wi
    0
    I have a 12.7 in a 93 pete, had wierd things going on such as low voltage high water temps etc. The ground cables go to the starter from the batterys, we found the starter was not grounding well to the block, put a cable from the starter to the block cured the problems and lowered water temp reading 20 degrees
     
    logging pete, Mar 10, 2013
    logging pete, Mar 10, 2013
    #13
    heavyhaulerss Thanks this.
  5. Mar 10, 2013 #14
    heavyhaulerss

    heavyhaulerss Road Train Member

    3,723
    2,038
    Dec 23, 2009
    AL/TN BORDER
    0
    On your Pete. wouldn't the starter be grounded to the block by being bolted to the block & have a ground from the starter to the frame?
     
    heavyhaulerss, Mar 10, 2013
    heavyhaulerss, Mar 10, 2013
    #14
  7. Mar 10, 2013 #15
    logging pete

    logging pete Bobtail Member

    14
    4
    Aug 1, 2010
    woodruff wi
    0
    We have alot of salt on our roads in the winter,rust between the starter and the block ,the alternator would put out 14 volts when grounding the meter to the block, we checked it at the batterys and would have 12volts that is how we tracked it down to the starter grounding.
     
    logging pete, Mar 10, 2013
    logging pete, Mar 10, 2013
    #15
    heavyhaulerss Thanks this.
  8. Mar 10, 2013 #16
    Chadwick

    Chadwick Light Load Member

    73
    6
    Apr 3, 2012
    Oregon
    0
    Checked the batteries and cables all were tight and fine. Ground to the frame was fine as well. I'll see what it does this week on me and get back. But could it really be the gauge pod itself??...I just feel like that's too easy cuz everything has to be a pain in the ###.
     
    Chadwick, Mar 10, 2013
    Chadwick, Mar 10, 2013
    #16
  9. Mar 13, 2013 #17
    Chadwick

    Chadwick Light Load Member

    73
    6
    Apr 3, 2012
    Oregon
    0
    Well it's still doing it guys. I'm gonna try replacing the low coolant level (overflow tank) sensor. If that doesn't do it I'll try replacing the gauge pod itself and if that still doesn't do it ill know its an electrical issue. Or Computer? The gauge seems to love to freak out pulling this certain hill going into Portland and then as I coast down the other side for a couple miles the gauge just won't read accurate and float around. Does anyone think its the gauge pod itself?


    What I've tried:
    Replaced water temperature sensor/sending unit (same thing)
    Checked batteries/cables
    Checked water temp sensor wires along with numerous others including ECM ones for any obvious damaged wires

    Truck had bars leak put in it awhile ago. Could that be causing it?

    Actually it worked fine after bars leak. I feel like it may have started after the coolant was all drained out and then added back in. Could the shop have caused an air pocket? How do you get air out of the system
     
    Last edited: Mar 13, 2013
    Chadwick, Mar 13, 2013
    Chadwick, Mar 13, 2013
    #17
  10. Mar 13, 2013 #18
    Chadwick

    Chadwick Light Load Member

    73
    6
    Apr 3, 2012
    Oregon
    0
    Alright I replaced the Low Coolant Level Sensor (in the overflow tank) today. We'll see what that does...if its still doing it I may try the gauge pod and then I'm done messing with it. Cuz then it's gotta be an electrical issue...
     
    Chadwick, Mar 13, 2013
    Chadwick, Mar 13, 2013
    #18
  11. Aug 4, 2018 #19
    '07 KW w/53' Conestoga

    '07 KW w/53' Conestoga Medium Load Member

    322
    282
    Sep 28, 2015
    0
    Did that fix it? No post makes me assume so, but seems weird that would have caused the issue, and, you know what happens when we assume!!!
     
    '07 KW w/53' Conestoga, Aug 4, 2018
    '07 KW w/53' Conestoga, Aug 4, 2018
    #19
  12. Jan 28, 2019 #20
    A gear per tire

    A gear per tire Bobtail Member

    40
    10
    Jan 26, 2019
    0
    Im having the same issue on Cat C-15, temps for coolant and oil went way beyond 250, when the driver shut the vehile off and turned it back on it was back to normal. Onlh does it when loaded. I have checked the intake air temp sensor, fuel temp sensor and coolant temp sensor. The sensors arw fine. I know that these run the same ground but still cant find anything here at the shop. If anyone has run into this on a cat let me know. Thanx.
     
    A gear per tire, Jan 28, 2019
    A gear per tire, Jan 28, 2019
    #20
    '07 KW w/53' Conestoga Thanks this.
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