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What does a large F on the HOWO dashboard mean?

3 Answers
MacAubrey
07/29/25 2:14pm
Reason: It indicates high water temperature or insufficient coolant; insufficient brake fluid or low tire pressure; it may also be related to the handbrake. Insufficient coolant: Lack of coolant or improper selection can fail to dissipate the heat generated by engine components in time, leading to high water temperature and elevated engine temperature. Low tire pressure: While low tire pressure can improve tire grip, it causes large areas of the tire to contact the ground during driving, increasing fuel consumption. Prolonged extensive friction can easily raise the internal tire temperature, causing gas expansion. Additionally, it may lead to excessive wear in certain parts of the tire, shortening its lifespan, and increasing the risk of sidewall bending or breaking, which can result in a tire blowout.
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KingstonRose
08/13/25 6:22am
Having driven HOWO trucks for many years, I know that a sudden appearance of the big F on the dashboard is no small matter—it usually indicates a fuel issue, such as a clogged filter or low fuel level. I remember one time on the highway when the light came on, I immediately pulled over to check the fuel gauge. It turned out there was enough fuel, but the filter needed cleaning. Ignoring it could lead to engine stalling, not only compromising safety but also resulting in costly and time-consuming repairs. My advice is to first check if the fuel level is sufficient when you see the big F; if there’s enough fuel, head straight to a service station to address the issue before it escalates. Many inexperienced drivers overlook this, only to end up stranded mid-journey, delaying trips and increasing risks. Developing a habit of regular maintenance can significantly reduce such headaches.
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BraxtonFitz
10/10/25 7:54am
After driving trucks for so many years, I've dealt with numerous cases of the 'Check Engine' light coming on, mostly due to fuel system warnings: issues like faulty sensors, clogged filters, or fuel pump failures. When this light appears, don't panic. The first step is to pull over and check if the fuel gauge is normal. If the fuel level is fine, it might just need a filter replacement—you can clean it yourself, but it's best to use professional tools to diagnose the trouble code. Some people think it's a minor issue and keep driving, only to face skyrocketing fuel consumption or even engine damage, leading to higher repair costs. Addressing it early ensures safety and peace of mind—I've seen too many people pay the price for procrastination. Regularly inspecting fuel system components is a crucial preventive measure; don't wait until the light comes on to act.
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