Discussion:
Intermittent Shutdown

I have a Hyster H120XM L005 GM 4.3 that has an intermittent shutdown issue. Machine may run 3 minutes, may run 30 seconds before code throws and shuts down. Machine oil levels are good, is not running hot, has new lock off and regulator, runs great until shutdown then cycle key and it immediately starts and runs again. Haven't been able to get the code to flash, I don't think it is storing and the local dealer does not support the software to pull codes with a computer. I'm assuming wiring, faulty sensor, or ECM is the issue. Any good starting points to suggest?
  • Posted 1 Jul 2022 01:01
  • By Mech_94
  • joined 1 Jul'22 - 1 message
  • Georgia, United States
Mech_94
Showing items 1 - 1 of 1 results.
I've had similar issues with that 4.3 GM, (not in a Hyster), solved by replacing the ignition control module in the distributor.
Also, check battery voltage when running, those ecu's will cut off with a higher voltage than normal.

Also, check ground connections, especially from the ecu.
  • Posted 5 Jul 2022 16:11
  • By Speedfreak
  • joined 24 May'18 - 103 messages
  • Niederlande, Netherlands
.

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.

Editorial calendar - planned features
CONSTRUCTION FORKLIFTS
HANDLING GOODS IN THE COLD
LOADING/UNLOADING FREIGHT
BROWNFIELD AUTOMATION
FORKLIFT ATTACHMENTS
BATTERY AFFORDABILITY AND LIFETIME
FORKLIFT SAFETY
Global Industry News
edition #1256 - 13 November 2025
Automation is a key theme in the stories we have in this week’s Forkliftaction News ... Continue reading
Upcoming industry events …
November 27, 2025 - Jakarta, Indonesia
December 9-11, 2025 - Aktau, Kazakhstan
June 22-25, 2026 - Chicago, Illinois, United States
Editorial calendar - planned features
CONSTRUCTION FORKLIFTS
HANDLING GOODS IN THE COLD
LOADING/UNLOADING FREIGHT
BROWNFIELD AUTOMATION
FORKLIFT ATTACHMENTS
BATTERY AFFORDABILITY AND LIFETIME
FORKLIFT SAFETY

PREMIUM business

Shenzhen Wellwit Robotics Co., Ltd
The Largest AMR/AGV ODM/OEM Manufacturer in China.
Fact of the week
In March 2002, identical twins in Finland died on the same day in similar accidents within hours of each other. A 70-year-old man was killed by a truck while cycling; hours later, his twin brother was killed by a truck on the same road, about a mile away, before the family had been informed of the first accident.