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Chengli Automobile Industry Park

Common faults and maintenance techniques of pure electric vehicles
Pure Electric Vehicles: Common Faults and How to Fix Them
Are you a proud owner of a pure electric car? These cars are great for our planet. They don’t make noise or put bad air into our sky. But like all cars, they can have problems too. Let’s look at the most common issues and how to fix them.
Table of Contents
What Makes Electric Cars Different?
Electric cars don’t work the same as gas cars. They use big batteries instead of gas. They have electric motors instead of engines. This means they need special care when they break down.
Common Problems You Might Face
1. Car Won’t Start
Your electric car might not start for a few reasons:
- Battery problems: If your battery has cracks or leaks, it won’t work well.
- Low voltage: When your backup battery gets low, your car might not start.
- Bad connections: Rust on battery parts can stop power from flowing.
How to fix it:
- Look at your battery for cracks or wet spots
- Clean rust off battery parts with sandpaper
- Check if backup battery has enough power (see table)
Battery Reading | What It Means | What To Do |
---|---|---|
12.5 volts or more | Battery is full | Nothing needed |
11.5-12.5 volts | Battery at 60-70% | Charge soon |
Under 11.5 volts | Battery is weak | Replace battery |
Pure Electric Vehicle: Common Issues & Fixes
Startup Failure
Often due to battery connection issues or low auxiliary battery voltage.
Charging Failure
Can be caused by faulty sockets, sensor issues, or controller errors.
Reduced Power
Motor brush wear, controller failure, or simple overloading can reduce performance.
Acceleration Failure
Often linked to motor overheating, frequently caused by cooling system issues.
Illustrative Commonality of EV Faults
Note: Chart data is illustrative and based on general discussion, not specific frequency statistics.
2. Charging Problems
Have you ever tried to charge your car but nothing happened? This is a common issue with electric vehicles like the Zero Emission Electric Ambulance.
Signs of charging problems:
- Red light on charger
- Car says it’s connected but won’t charge
- Very slow charging
How to fix it:
In one real case, an EV 300 car showed a fault code P10031 (too hot at charging port). The fix was to check the port’s wires and replace the whole socket.
3. Car Feels Weak When Driving
If your electric car feels like it has no power, the problem might be:
- Motor issues: Worn out brushes in the motor
- Controller problems: The brain of your car isn’t working right
- Overheating: The motor is too hot
Fix it like this:
- Check if motor is too hot
- Make sure cooling fluid is full
- Don’t carry too much weight in your car
Problem | Cause | Solution |
---|---|---|
Motor won’t work | Bad wires or brushes | Fix wires or replace brushes |
Motor gets too hot | Low cooling fluid | Add more cooling fluid |
Car feels weak | Car is carrying too much | Reduce weight in car |
4. Car Won’t Speed Up
This happened to an EV 300 driver. The car showed “motor too hot” and wouldn’t go faster even when pressing the gas pedal.
What to do:
- Turn car off completely
- Check cooling system
- Add cooling fluid if needed
- Replace cooling pump if broken
Just like with the Battery-Powered Ambulance Truck, keeping the cooling system working well is key to good performance.
Tools You Need to Fix Problems
To fix these issues, you’ll need:
- Code reader: To see error codes
- Voltage tester: To check battery power
- Wire brush: To clean battery parts
Keep Your Electric Car Happy
To avoid problems with your Electric Mobile Sales Van or any electric vehicle:
- Battery care:
- Keep battery between 20-80% charged
- Check for corrosion monthly
- Cooling system:
- Change cooling fluid every 2 years
- Keep cooling parts clean
- Driving habits:
- Don’t floor the pedal too much
- Don’t carry more than your car can handle
When to Get Help
Some problems are too big to fix yourself. Get help if:
- You see high-voltage warning lights
- The battery is leaking
- The car won’t charge after trying simple fixes

Wrapping Up
Electric cars are the future of travel. They’re clean, quiet, and cost less to run than gas cars. By knowing these common problems and fixes, you can keep your electric car running well for a long time.
Remember that electric cars need special care. Don’t try to fix high-voltage parts yourself. Always get help from people who know about electric cars.
With good care, your electric car will give you many years of clean, quiet driving!