Discussion:
High Idle

Hello, I am working on an 8Fgcu25 serial 19741. Unit has an idle of 1275 according to the multifunction display and clearly is too high. No codes. No broken wires that I can find. I have checked all that I know having worked on these units since they were new. I haven't ran across this issue to this point. Has anyone seen this issue? Drives as it should, the only time it can idle down is unplugging the throttle body. At that point, there is a code and obviously no throttle response.
Thanks
  • Posted 13 May 2020 11:40
  • By Hero5
  • joined 17 May'14 - 56 messages
  • South Carolina, United States
Take care of the customer
Showing items 1 - 2 of 2 results.
Check for vacuum leaks I had one with a high idle where the PCV valve was disconnected from the valve cover
  • Posted 3 Sep 2022 08:31
  • By 18436572
  • joined 3 Sep'22 - 6 messages
  • Georgia, United States
-Karl
Check for any vacuum leaks. I have seen the PCV hose come off the valve cover and cause a high idle. Also you can adjust the idle via the multifunction display however I believe you can only go from 650 to 750
  • Posted 3 Sep 2022 02:46
  • By 18436572
  • joined 3 Sep'22 - 6 messages
  • Georgia, United States
-Karl

Post your Reply

Forkliftaction accepts no responsibility for forum content and requires forum participants to adhere to our rules of conduct. Click here for more information.

If you are having trouble using the Discussion Forums, please contact us for help.

Movers & Shakers
Jeannette Walker Jeannette Walker
CEO, MHEDA
President, European Rental Association (ERA)
Chief marketing officer, JLT Mobile Computers
Chief executive officer, East Penn Manufacturing
Upcoming industry events …
October 6-9, 2025 - Detroit, MI, United States
October 6-9, 2025 - Detroit, MI, United States
November 14, 2025 - Melbourne, Australia
Latest job alerts …
Columbia, SC, United States
Saratoga, United States
East Syracuse, United States
Indianapolis, IN, United States