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.

Showcased in the Virtual Expo

Global Industry News
edition #1243 - 14 August 2025
In this week’s Forkliftaction News , we look at more financial reports with one major producer recording a “significant” decline in Q2 bookings to report an operating loss of USD8.5 million, while another had a strong quarter “despite increased trade tensions and a challenging geopolitical landscape”... Continue reading

Showcased in the Virtual Expo

Upcoming in the editorial calendar
WIRELESS CHARGING
Aug 2025
MANAGING MIXED FLEETS
Oct 2025

PREMIUM business

Hawker Powersource, Inc.
HAWKER® offers a range of hybrid motive power solutions customized to adapt as your operation's needs change.
Movers & Shakers
Dwight Klappich Dwight Klappich
Strategic advisor, Roboteon
CEO Americas, Hai Robotics
Executive director, NT WorkSafe
Chief executive, Logistics UK