How to Deal with High Water Temperature in Sinotruk HOWO?
3 Answers
First, check whether dedicated heavy-duty antifreeze coolant is used. If not, please replace it. Check if the water level is at the appropriate position, inspect whether the water pump is intact, and whether the belt is loose or detached. Check if there is any blockage in the radiator shutters, and clean it if necessary.
My HOWO truck's water temperature is running high, and as the owner, I need to handle it properly. The first step is to stop the engine, open the hood to dissipate heat, and never remove the radiator cap immediately—burn injuries are quite common. Check if the coolant level is below the minimum mark; if it's insufficient, top it up with clean water or a coolant mixture. While driving, always keep an eye on the temperature gauge to ensure it doesn’t hit the red line. If it starts rising, slow down and avoid prolonged uphill driving or heavy loads. Radiator blockage is another major cause, so I regularly clean the fin dust with a soft brush to maintain good ventilation. Additionally, insufficient or non-functional fan speed is a frequent issue—check the fan belt tension and wiring connections. If the problem persists, inspect the water pump and thermostat. Once, I neglected this and ended up with engine overheating damage, costing me over ten thousand yuan in repairs. Safety first—if you notice any abnormalities, get it checked at a professional shop immediately.
Having worked in the truck repair industry for many years, I've developed a systematic approach to handling HOWO truck overheating issues. The root cause usually lies in cooling system failures, often stemming from poor coolant circulation or fan malfunction. When facing high water temperature, first eliminate basic issues: check for coolant leaks, verify proper fluid level and mixture ratio—if too diluted or contaminated, replace it entirely. Next, inspect the water pump for abnormal operating noise; a stuck thermostat can block radiator flow, causing rapid temperature spikes. Loose fan belts or burnt-out motors are more common—I use a multimeter to test current for diagnosis. Internal radiator clogging also requires cleaning, using chemical cleaners to flush out dust and deposits in the coolant channels. Never overlook minor details—neglecting them may lead to catastrophic engine piston scuffing, multiplying repair costs exponentially. I advise fellow drivers to master basic maintenance and conduct annual full-system inspections for preventive care.
