Have you ever noticed that your car key gets really hot in the ignition? This may not seem like such a big deal, but it actually has a significant impact on your vehicle’s performance. The reason your key gets so hot is due to a phenomenon known as thermal runaway. When your car’s engine is running, the combustion process produces heat. This heat must be dissipated in some way or else the engine will overheat and fail. One way that this heat is dissipated is by passing it off to the car’s surroundings. In colder climates, this can involve passing heat through the engine block and into the car’s cabin; in warmer climates, it can involve conducting heat through the metal body of the car. This heat buildup can eventually cause all sorts of problems with your car, from loss of fuel efficiency to complete engine failure. If you experience any of these symptoms, take a look at your car key—it may be one of the first signs that something is wrong.
What Causes a Car Key to Get Hot in the Ignition?
When a car key gets hot in the ignition, it can be a sign of a problem with the car’s electrical system. There are a few different things that could cause this issue, and each one will require a different fix. Here are some possible causes of a car key getting hot in the ignition:
1. A broken or malfunctioning electrical connection – If there’s an electrical connection between the key and the car’s computer, it can often break down due to wear and tear. This can cause the key to heat up in the ignition, as all of the energy being sent from the battery to power the car will now come through this broken connection.
2. A bad battery – If you’re having trouble starting your car or if its engine doesn’t turn over when you hit the gas, chances are good that your battery is at fault. Failed batteries can give off heat in both vehicles and keys, as they’re trying to produce enough voltage to start up your engine (even when nothing is actually happening).
3. Faulty wiring – If there’s something wrong with your wiring underneath your dash, it could cause problems with any electrical devices connected to it. This includes your car’s key fob, which would
How to Fix a Car Key That Gets Hot in the Ignition
If your car key gets hot in the ignition, there may be a problem with the wiring. If this is the case, you will need to have the key replaced. However, if the key is just getting warm, there are a few things that you can do to fix it.
The most common reason for a car key getting hot in the ignition is a faulty wiring connection. If this is the case, you will need to have the key replaced or re-wired. To check if your wiring is faulty, try disconnecting everything from the car and testing each wire one by one against another known good wire. If no wires are bad, then your car may just need new headlight bulbs.
If your car key gets really hot in the ignition, there may be aproblem with the engine itself. In this case, you will need to have the entire engine replaced.
Conclusion
There is a good chance that your car key gets hot in the ignition because your car’s engine is working hard. When you start your car, the engine RPMs (revolutions per minute) surge up to around 7000 rpm. This high RPM generates a lot of heat, which melts the plastic coverings on your key and ignites the gas that is inside it. The heat from this combustion process causes the metal parts of your key to heat up, and this phenomenon is what makes your car key get hot in the ignition.