Discussion:
C4000 Wont Start

We have a C4000 Forklift that has multiple issues. The dash is showing an error E-24. The accelerator sensor has been replaced. When you turn the key you can hear the propane flowing and can smell the propane. This seems to be coming from the intake area. There is no voltage to the fuel injector and it seems to be closed/not allowing propane through. I am not sure what would be causing the fuel leak but it could be related to the error code. What should I check next?
  • Posted 1 May 2021 10:41
  • By Wolfraider
  • joined 1 May'21 - 2 messages
  • Missouri, United States
Showing items 1 - 3 of 3 results.
Thanks, I will rebuild the vaporizer and check the pedal sensor. it was replaced when I bought the forklift but might have been installed incorrectly.
  • Posted 6 May 2021 23:59
  • By Wolfraider
  • joined 1 May'21 - 2 messages
  • Missouri, United States
E-24 is set because the throttle or pedal sensors are not calibrated.
To calibrate the throttle system do the following:
- Turn key on and count 2 seconds
- Turn key off and count 10 to 12 seconds
- Turn key on and count 2 seconds
Once this is completed the learn has been completed.
Do not move the pedal during this process.
One other calibration that should be done is the 'Idle Air volume learn' which can only be done via the Diagnostic software program either on laptop or OBDII handset. (i'm not 100% sure on the handset part as i've never used one, i've only used the Diagnozer PC program to interface with these systems.
You cannot access this test/calibration through the dash as far as i know.
Generally doing the throttle learn calibration eliminates the fault though.
If the fault is persistant on the display you may have to do a code clear process using the 'pedal routine' to display all the codes stored and do the reset. This is called the 'pedal dance' by most tech's that are familiar with this.
This requires performing a series of pedal interactions in specific sequences of presses and timing between presses to access the level that allows the reset of the codes.
As far as fuel rushing into the intake? check your vaporizer, sounds as if it has a bad lockoff or ruptured diaphragm.
  • Posted 6 May 2021 23:29
  • By swoop223
  • joined 23 Mar'12 - 3,691 messages
  • North Carolina, United States
You've been swooped!
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have you drained vaperizer or rebuilt it. e-24 code check acell pedal stop could be worn might out of spec
  • Posted 6 May 2021 06:37
  • By mikeb
  • joined 22 Jun'13 - 38 messages
  • California, United States
work smarter not harder

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