Discussion:
Fault - 1684

please hep for this issue ,
The machine will start normally in the morning
can work the whole day

If you switch it off and tried to start it immediately
it wont start till after some time (cool off) + - 2 hours

If you tried more cranking a Fault - 1684 will appear
by returning the Key to OFF position then ON again the Fault will disappear
  • Posted 23 Nov 2014 23:42
  • By dib_k
  • joined 5 Nov'14 - 12 messages
  • lagos, Nigeria
Dib khanji
Showing items 1 - 4 of 4 results.
What application is this truck? does it get very hot, you could have a problem with your intake valves, they typically are not hardened
  • Posted 25 Nov 2014 10:10
  • By 67dave67
  • joined 4 Dec'08 - 38 messages
  • British Columbia, Canada
when the pressure of the injection pomp to the injectors is not high enough there is wear problem in the high pressure side
there is a easy test to make sure
cool down the pomp with cold water
first check the fuel valve below 8 volt it dont open in starting
  • Posted 25 Nov 2014 05:35
  • By AAPEE
  • joined 28 Aug'12 - 76 messages
  • Brussels, Belgium
Dear Brewski,

I've checked the injector pump and the nozzols are spraying fine and all the fuel system is good , the lift is not starting if it's hot. Will start after it will cool down.

Thanks for your reply.
  • Posted 25 Nov 2014 03:20
  • By dib_k
  • joined 5 Nov'14 - 12 messages
  • lagos, Nigeria
Dib khanji
The code 168-4 is low battery voltage. ?That would be normal if you are cranking for long periods of time. Have you checked for spark and fuel delivery.
  • Posted 25 Nov 2014 02:20
  • By BREWSKI
  • joined 10 Jan'12 - 1,699 messages
  • Nebraska, United States

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