Truckers Report Jobs

Find Trucking Jobs

Company Driver Company Driver Dry Van Dry Van Flatbed Flatbed Refrigerated Refrigerated Specialized Specialized Owner Operator Owner Operator
More Trucking Job Searches ⌄ Fewer Trucking Job Searches
⌃

Pete 379

Discussion in 'Heavy Duty Diesel Truck Mechanics Forum' started by rklane59, Oct 28, 2017.

Page 1 of 2
  1. Oct 28, 2017 #1
    rklane59

    rklane59 Bobtail Member

    5
    1
    Jan 2, 2014
    0
    Have a Cat motor in a Pete 379 both my oil temp and water temp gauges are dropping down and comes back up, sometimes they drop all the way done past 100 and I’ve noticed that my fan stays running. I’ve took all battery cables off and cleaned them and checked ecm cables and cleaned them! Anyone know what else I could do?
     
    rklane59, Oct 28, 2017
    rklane59, Oct 28, 2017
    #1
  2. Truckers Report Jobs

    Trucking Jobs in 30 seconds

    Every month 400 people find a job with the help of TruckersReport.

  3. Oct 29, 2017 #2
    Goodysnap

    Goodysnap Road Train Member

    3,752
    9,132
    Jul 12, 2017
    0
    You need to check wiring to and the coolant temp sensor itself. The oil temp is likely calculated from coolant temp and may not have a sensor of its own. The connector to the sensor is a real bugger to get to and may be not secured or locked on causing a loose connection. Do you have cel on when it occurs?
     
    Goodysnap, Oct 29, 2017
    Goodysnap, Oct 29, 2017
    #2
    Oxbow Thanks this.
  4. Oct 29, 2017 #3
    rklane59

    rklane59 Bobtail Member

    5
    1
    Jan 2, 2014
    0
    .
     
    rklane59, Oct 29, 2017
    rklane59, Oct 29, 2017
    #3
  5. Oct 29, 2017 #4
    rklane59

    rklane59 Bobtail Member

    5
    1
    Jan 2, 2014
    0
    No don’t have cel on if I run for a long while it drops down to nothing and stays there. Thanks I’ll check it
     
    rklane59, Oct 29, 2017
    rklane59, Oct 29, 2017
    #4
    Oxbow Thanks this.
  7. Oct 29, 2017 #5
    Jace379

    Jace379 Light Load Member

    146
    97
    Mar 6, 2017
    0
    Oil temp sensor is on drivers side of the oil pan.
     
    Jace379, Oct 29, 2017
    Jace379, Oct 29, 2017
    #5
    Oxbow Thanks this.
  8. Oct 29, 2017 #6
    Jace379

    Jace379 Light Load Member

    146
    97
    Mar 6, 2017
    0
    You can't calculate oil temp from coolant temp. That makes no sense
     
    Jace379, Oct 29, 2017
    Jace379, Oct 29, 2017
    #6
    Bean Jr. Thanks this.
  9. Oct 29, 2017 #7
    Jace379

    Jace379 Light Load Member

    146
    97
    Mar 6, 2017
    0
    If it were me I'd be looking for a grounding issue.
     
    Jace379, Oct 29, 2017
    Jace379, Oct 29, 2017
    #7
  10. Oct 29, 2017 #8
    Goodysnap

    Goodysnap Road Train Member

    3,752
    9,132
    Jul 12, 2017
    0
    Trust me you can because Cat does it through the ecm. Depends on the year and the engine which was not provided in this case. You are correct that most older engines do have oil temp sensor in the pan. Coincidence that both gauges quit working together, I think not.
     
    Goodysnap, Oct 29, 2017
    Goodysnap, Oct 29, 2017
    #8
    AModelCat Thanks this.
  11. Oct 29, 2017 #9
    Jace379

    Jace379 Light Load Member

    146
    97
    Mar 6, 2017
    0
    Holy crap your right. I had to look it up. I never would have guessed that.
     
    Jace379, Oct 29, 2017
    Jace379, Oct 29, 2017
    #9
    Bean Jr. Thanks this.
  12. Oct 29, 2017 #10
    rklane59

    rklane59 Bobtail Member

    5
    1
    Jan 2, 2014
    0
    It’s
     
    rklane59, Oct 29, 2017
    rklane59, Oct 29, 2017
    #10
  • Truckers Report Jobs

    Trucking Jobs in 30 seconds

    Every month 400 people find a job with the help of TruckersReport.

    • Page 1 of 2