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How to Deal with a Large 'F' on the HOWO Dashboard?

2 Answers

FrankAnn

07/25/25 3:20pm

Indicates high water temperature or insufficient coolant; insufficient brake fluid or low tire pressure; it may also be related to the handbrake. There can be many reasons for this situation. If it occurs frequently, you should find a nearby professional repair shop for inspection and maintenance.

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VanZane

08/11/25 9:24pm

I also encountered the dashboard showing a big F last month, which was really worrying. This kind of warning light could indicate an issue with the electrical system, such as a blown fuse or aging/short-circuited wiring. HOWO trucks often run long distances, and the constant vibration can easily lead to poor contact. I remember last time when I checked, I found that unstable generator voltage could also trigger this warning. Don't rush to drive; pull over immediately, turn off the engine, wait a few minutes, and then restart to see if it disappears. If the warning light remains, it's best not to tamper with the circuit board yourself. Contact the SINOTRUK service station directly—they can diagnose the specific issue in just five minutes with their diagnostic tool.

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