How To Fix A Remote Control Car


There are times when you will be playing with your remote control car, and it may break, and that can be heartbreaking. That is why it is important that you learn how to fix a remote control car by yourself. The remote control cars are susceptible to damage due to everyday use, or they develop some mechanical and technical issues that will prevent them from functioning correctly, and you should be able to fix the problems as they arise. The question now is, how do you fix a remote control car on your own?

There are some basic ways to troubleshoot and diagnose any issue that your remote control car might have, including the fuel levels, transmitter, batteries, wiring, and gears. When you learn how to diagnose issues, it will make it easier for you to fix the problems and also save you a lot of money on replacements and repairs.

Learning how to solve some of these issues and fix the issues yourself is a huge part of being a remote control enthusiast. We will show you how to fix some of these common problems without having to spend so much money or asking for a professional, or even throwing the remote control car away.

How To Fix Problems With A Remote Control Car’s Batteries

When you notice that your remote control car doesn’t want to start, one of the most common issues can be the batteries. A lot of people think that the worst has happened when their RC car refuses to start, they think that the entire RC car has broken down, but it could just be a simple fix by adjusting the batteries and starting it again. Another common issue with the batteries is the alignment; if they are out of place even slightly, it could cause the car to stop working.

The first thing to do is to check the transmitter and remote control to see if it has any missing cells. After that, you want to check the car and the installed batteries to see if they were inserted and aligned properly and in the correct position. A lot of the time, the issues mostly stem from the batteries, and it could have a simple fix of just charging the batteries or changing the charger for the batteries. Batteries tend to lose their power over time, and it could just mean that they need a replacement. The same goes for rechargeable batteries; when they start to slow down or stop charging properly, then you know they need to be replaced.

It doesn’t matter if the battery isn’t that old; if it isn’t stored correctly, then it could corrode. It is not right to expose batteries to air and moisture, and it is also not good to let them sit for a long time if they aren’t being used. Ensure that you clean your battery slots every few months and keep the RC car in a place where they won’t get any sort of damage; doing this prevents corrosion.

Fueling Your Remote Control Car

The same way we have to fuel our normal cars is the same way we have to fuel gas powered remote control cars, and because of this, they may experience issues relating to fuel. If your RC car is gas-powered, it will require extra maintenance and care.

Nitro remote control cars mosy especially need extra work, so you might want to check the fuel if your car stops running properly or just stops moving. Sometimes, the problem may be something easy to fix, such as an empty or half-empty fuel tank, easily fixed by filling the tank back up. If that’s not the issue, you might want to check the fuel line as it may be the cause of the issue.

If the fuel line is the cause of the problem, it is most likely why the car isn’t starting. Repair the kink in the fuel line and fill the gas tank, and if the problem is not fixed, you might need to have an in-depth fuel look.

Fixing Wiring And Connections

If you check your car’s inside, you will see a few wires and connections that make up the remote control car. Understanding these wires and their functions can help you fix some common issues that you might encounter, so it is important that you educate yourself on how to solder and reconnect these wires.

Most of the time, when RC vehicles refuse to start or work poorly, it may be because of loose wiring somewhere inside the car. Ensure that you check the entire car, most especially the steering system and motor; that is where the wiring issues are most common and ensure that the wires in the battery’s housing are properly connected. If you don’t find any damaged or loose wiring, you can still re-solder them with the proper tools and reconnect the wires using an electrical tape.

All this may seem a bit technical, but because you’re working with something small, it will be easier to see the wire that has the issues, and you can quickly figure out how to fix it. That is why it is vital that you learn how, especially if you would prefer to fix your RC car by yourself.

Fixing Issues With The Servo

A servo stands for a servo motor, which is an important part of an RC’s radio control. If your RC car isn’t starting, then it might be due to an issue with the servo, but there are easy tests that you can carry out to see if the servo is really the problem. If the car is answering some commands but not others, then there is a high chance that the servo is the issue. To be sure, you can match the frequency that the servo is giving out to that of another working receiver.

Plug the servo into the new receiver, and if it doesn’t work, then you know the servo has developed issues. Except you have the technical know-how, it is best that you leave this issue to the professionals. Another thing you could do is to replace the entire servo.


After going through this guide, you should be able to troubleshoot some of the common issues that an RC car may develop. If you have tried everything you can do and the RC car isn’t responding, it is best to take it to a professional.


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