Homepage

Blog

Why Your Truck is Losing Coolant: Causes and Solutions

LONG

11/02/2025

0 Comments

Car

Mr. Ba, a seasoned truck driver in Hanoi, was known for his smooth handling on any road. Recently, he was troubled by his Dongfeng truck’s sudden thirst for coolant, forcing him to stop and refill frequently. Unable to pinpoint the cause, Mr. Ba took his truck to Thai Phong Auto Repair on Nguyen Van Linh Street, Long Bien District. After a thorough inspection, the mechanic quickly diagnosed the problem and provided a swift solution. Mr. Ba was back on the road, confident in his truck’s performance.

So, what causes coolant loss in trucks, and how can it be fixed? Let’s delve into the details in this article.

I. Causes of Coolant Loss in Trucks

Several factors can contribute to coolant loss in trucks. Here are some common culprits:

System Leaks: This is the most prevalent cause, often due to a faulty radiator cap gasket, cracked or loose hoses.
Malfunctioning Cooling Fan: An inefficient cooling fan hinders proper engine cooling, leading to overheating and coolant loss.
Damaged Radiator Cap: The radiator cap has a pressure valve. A faulty valve fails to maintain system pressure, causing the coolant to boil and evaporate.
Faulty Water Pump: The water pump circulates coolant throughout the system. A malfunctioning pump disrupts coolant flow, causing overheating and coolant loss.
Clogged Radiator: Sediment buildup in the radiator and hoses can cause blockages, reducing cooling efficiency.
Faulty Thermostat: This component regulates coolant flow. A stuck closed thermostat prevents coolant from reaching the engine, causing overheating.

II. Truck Cooling System Repair Price Guide (Reference)

Item	Price (VNĐ)
Radiator Cap Replacement	150,000 – 500,000
Radiator Cap Gasket Replacement	50,000 – 150,000
Hose Replacement	200,000 – 1,000,000
Cooling Fan Repair/Replacement	500,000 – 2,000,000
Water Pump Repair/Replacement	1,000,000 – 3,000,000
Radiator Flush	300,000 – 500,000
Thermostat Replacement	500,000 – 1,500,000

Note: This price list is for reference only. Actual prices may vary depending on the vehicle’s make, model, manufacturer, and repair shop.

III. What to Do When Your Truck Loses Coolant

Do Not Continue Driving: If you notice coolant loss, stop the vehicle immediately to prevent overheating and severe engine damage.
Perform a Preliminary Check: Inspect the radiator, hoses, and surrounding areas for visible leaks.
Add Coolant: In emergencies, add water to the radiator to reach the nearest repair shop. Using specialized coolant is recommended for optimal cooling performance.
Visit a Reputable Repair Shop: For thorough inspection and repair, take your truck to a trusted garage like Thai Phong Auto Repair for expert assistance.

IV. Frequently Asked Questions

1. Is coolant loss in trucks dangerous?

Yes, very dangerous. Continuing to drive with coolant loss can lead to overheating, causing severe engine damage, potentially resulting in engine seizure.

2. How often should truck coolant be changed?

Coolant should be changed according to the manufacturer’s recommendations, typically every 40,000 km or 2 years.

3. Can water be used instead of coolant?

Water can be used temporarily in emergencies. However, it lacks anti-corrosion properties and has poor heat transfer capabilities, potentially harming the cooling system in the long run.

4. How can I choose a reputable truck repair shop?

Choose a well-regarded shop with positive reviews, a clear address, experienced technicians, and modern equipment, such as Thai Phong Auto Repair.

Inspecting the engine cooling system

V. How to Purchase from XE TẢI HÀ NỘI

To purchase quality trucks with reliable after-sales service, contact XE TẢI HÀ NỘI through the following methods:

Phone: [Phone Number]
Visit our showroom:
- Showroom 1: [Showroom 1 Address]
- Showroom 2: [Showroom 2 Address]
Visit our website: [Website Address]
Send a message: [Other Contact Information]

VI. Similar Products

XE TẢI HÀ NỘI also offers a wide range of other truck brands, including:

Hino Trucks
Isuzu Trucks
Hyundai Trucks
Thaco Trucks
Dongfeng Trucks

Conclusion

We hope this article has provided valuable insights into the causes and solutions for coolant loss in trucks. Regular inspection and maintenance are crucial for optimal vehicle performance. If you have any questions, leave a comment below or contact XE TẢI HÀ NỘI directly for consultation and support. Don’t forget to visit our website at xetaihanoi.edu.vn for more informative articles about trucks!