Why does the van fail to start and make abnormal noises when attempting to start?
2 Answers
Here are the reasons why a van fails to start and makes abnormal noises when attempting to start: 1. Insufficient fuel: If the vehicle has very little fuel or the fuel gauge shows below the red line, it naturally won't start. 2. Crankshaft position sensor failure: The crankshaft position sensor is the most important sensor in an electronically controlled fuel injection engine, especially in centralized control systems, and is also a shared sensor for the ignition and fuel injection systems. 3. Wiring issues: The power supply line from the battery may be burnt out, or the starter relay may be damaged. 4. Excessive carbon deposits: Too much carbon buildup can cause poor spark plug ignition, leaky valves, and poor fuel injector performance, leading to misfires, lack of acceleration, engine shaking, and in severe cases, failure to start.
My car had the same issue before—it wouldn’t start and made strange noises. I figured I should start by checking the battery, since old vans are prone to battery drain, and after three years or more, they might not hold a charge well. If the lights dim or the dashboard flickers when trying to start, confirm the battery voltage. If the noise is a clicking sound, it’s likely the starter motor is worn out—that part drives the transmission gears, and damage can cause jamming and noise. A hissing sound might indicate an aged or loose belt. Last time, I spent 200 yuan to replace the motor, and it worked fine afterward. Avoid repeatedly attempting to start the car, as it can worsen the damage. Regular maintenance is key—check the electrolyte level monthly, and keep the battery charged and discharged properly to extend its lifespan.
