Truck Stalls While Driving: Causes and Solutions

“The biggest fear on the road is a tractor, the biggest fear at home is a silent wife.” This humorous saying reflects the dread truck drivers feel when their vehicle suddenly stalls on the road. So, what causes this, and how can it be addressed? Let’s explore with Hanoi Trucks!

Why Does a Truck Stall While Driving?

Truck stalls are not uncommon, especially for older trucks frequently operating on long routes like National Highway 1A, Truong Chinh Road, or the Phap Van – Cau Gie Expressway. Here are some common causes:

1. Fuel System Issues

• Empty Fuel Tank: It might seem obvious, but many drivers neglect to check their fuel gauge before starting their journey, leading to running out of gas mid-trip.
• Faulty Fuel Pump: The fuel pump delivers fuel from the tank to the engine. A malfunctioning pump restricts fuel supply, causing the engine to stall.
• Clogged Fuel Filter: The fuel filter removes impurities from the fuel. If clogged, it restricts fuel flow, starving the engine and leading to a stall.

2. Electrical System Problems

• Weak or Dead Battery: The battery powers the ignition system and other electronic components. A weak or dead battery prevents starting or can cause the engine to stall while running.
• Faulty Spark Plugs: Spark plugs ignite the fuel-air mixture in the engine. Damaged, dirty, or improperly gapped spark plugs lead to unstable engine operation and stalling.
• Malfunctioning Sensors: Sensors collect data and send it to the Engine Control Unit (ECU). Faulty sensors provide incorrect information to the ECU, leading to improper engine control and potential stalling.

3. Other Causes

Other factors can also contribute to truck stalls, including engine overheating, low-quality lubricating oil, and a clogged exhaust system.

A truck driving on the roadA truck broken down on the side of the road