What are the reasons why Changan cars cannot start?
4 Answers
There are several reasons why a Changan car cannot start: 1. Battery: As the basic power source of the car, when it is low on power, the motor cannot operate normally. 2. Spark plug: The most important component in the ignition system of a gasoline engine. If the spark plug fails to ignite, the car naturally cannot start. 3. Fuel supply system: When the car cannot start, it is necessary to check whether the fuel supply system is functioning properly. If this system malfunctions, the engine oil cannot be supplied, which will also affect the normal starting of the car. 4. Motor failure: After ignition, the power will start the motor, and once the motor operates, the engine will follow. If the battery is sufficient but the motor is not operating normally, the car will also fail to start.
I've been repairing cars for over a decade, and there are several common reasons why a Changan vehicle won't start. First, a dead battery is the most frequent issue. If you often listen to music with the engine off or the battery is three to four years old, starting the car will be particularly difficult, or there may be no response at all. Second, the starter motor might be faulty—you can hear a clicking sound when turning the key, but the engine won't crank. Third, there could be a fuel system problem, such as a faulty fuel pump or a clogged filter, and the fuel pressure warning light on the dashboard might illuminate. Fourth, ignition system issues like carbon-fouled spark plugs or aging ignition coils can arise, especially on rainy days. Fifth, less common faults include the anti-theft system locking the engine or a failed crankshaft position sensor. I recommend trying a jump-start first. If that doesn't work, you'll need professional diagnostic equipment—don't force it, as it could damage the engine.
I had a similar issue when driving my family's Changan back to my hometown before—it's really frustrating. The most common cause is a dead battery, especially in winter or when the car sits idle for long periods, as the battery drains faster. Check if the dashboard lights are dim; if so, it's likely a battery problem. Another possibility is the fuel pump not supplying fuel—listen for a humming sound from the rear seats when turning the key to the ON position. An easily overlooked reason is a locked steering wheel; try wiggling it left and right before turning the key. Oxidized electrical connectors can also be an issue—over time, the plugs in the engine bay may develop poor contact. If the car is over five years old, worn starter motor brushes could be the culprit, making the starting sound unusually muffled.
Changan starting faults can be systematically categorized into three main areas: the power system (e.g., battery, alternator), where dashboard lights dim or flicker when faulty; the starting system (e.g., starter motor, relay), which produces abnormal noises during startup; and the fuel system (e.g., fuel pump, injectors), where you may smell gasoline but the engine won't start. A special reminder for northern car owners: pay attention to the antifreeze's freezing point, as winter freezing can trigger system protective lockouts. Those who have modified their electrical circuits should be particularly cautious about poor ground wire connections—I've seen three cases caused by aftermarket dash cam installations. Also, don't underestimate battery terminal corrosion; pouring hot water and tightening can resolve many pseudo-faults. Regular maintenance can prevent 90% of such issues.
