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
⌃

Losing throttle response

Discussion in 'Western Star Forum' started by Tanglefoot T 600, Dec 6, 2016.

  1. Dec 6, 2016 #1
    Tanglefoot T 600

    Tanglefoot T 600 Bobtail Member

    2
    0
    Dec 6, 2016
    0
    I have an 1991 kenworth T 600 N 14 460 hp the problem is I lose throttle response it goes to idle for 8 to 10 seconds then works fine again seems to be worse in very cold weather-10 C also has been triggered by jake switche but not always. Sometimes you have to shut off key to rectify
     
    Tanglefoot T 600, Dec 6, 2016
    Tanglefoot T 600, Dec 6, 2016
    #1
  2. Truckers Report Jobs

    Trucking Jobs in 30 seconds

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

  3. Dec 7, 2016 #2
    boneebone

    boneebone Road Train Member

    2,295
    2,366
    Mar 13, 2009
    0
    If your N14 has Electronic Controls, it could be a worn out Accelerator Pedal or a bad Accelerator Pedal Position Sensor.

    Those parts also affect the operation of the Cruise Control and the Jake Brakes.
     
    boneebone, Dec 7, 2016
    boneebone, Dec 7, 2016
    #2
    Tanglefoot T 600 Thanks this.
  4. Dec 7, 2016 #3
    W900AOwner

    W900AOwner Heavy Load Member

    714
    1,284
    Jul 2, 2014
    0
    How often does it do it...every day/frequently? Hard to tell anything without knowing the frequency of the problem.
     
    W900AOwner, Dec 7, 2016
    W900AOwner, Dec 7, 2016
    #3
  5. Dec 7, 2016 #4
    Tanglefoot T 600

    Tanglefoot T 600 Bobtail Member

    2
    0
    Dec 6, 2016
    0
    It can happen 4 or 5 times then nothing for a month then 3 times in 15 minutes then nothing till the next day then about 15 times in an hour depending on wind and temperature
     
    Tanglefoot T 600, Dec 7, 2016
    Tanglefoot T 600, Dec 7, 2016
    #4
  7. Dec 8, 2016 #5
    W900AOwner

    W900AOwner Heavy Load Member

    714
    1,284
    Jul 2, 2014
    0
    That really just sounds like a bad connection in a harness from the ECM to the firewall. Needs a thorough checkup of it every inch. All it takes is ONE corroded pin in one plug to act that way.

    The other thing I'd go to first is the TPS (throttle position sensor) wires at the accelerator pedal. I've had a couple of them fail and do that exact thing. The loop from the TPS itself to the end of the plug on the floor can fail, a broken wire, corrosion, etc. Salt from shoes plays havoc on them (if you're in that region where salt is present anyway.)
     
    W900AOwner, Dec 8, 2016
    W900AOwner, Dec 8, 2016
    #5
    Tanglefoot T 600 Thanks this.
  • Truckers Report Jobs

    Trucking Jobs in 30 seconds

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