Q: Ignition coil overheating

asked by on

The car run perfect for about 20 minutes, then the engine cuts off and I'm unable to start the engine again until my coil cools down

My car has 200000 miles.
My car has a manual transmission.

When electrical components get hot it is typically due to a high level of resistance. The most common issues with the coils getting hot are caused by the spark plugs, wires, or the distributor.

You may want to replace the spark plugs. This is a component that you can change as often as you want and it would only be good for your vehicle. The spark plug wires also need to be clean, dry, and tight. If these wires are loose, exposed to the elements, corroded, or shorted out they can develop high resistance.

The resistance across the wires can be tested with an ohmmeter. The "allowable" resistance for the cables to test good will depend on the cable length and what its made from. VW specifications may be harder to find. If you think the wires are to blame due to damages or other process of elimination, I suggest having them replaced. If you would like to have this taken care of, a qualified professional from YourMechanic can come to your car’s location to diagnose the stalling problem and have this resolved.

Was this answer helpful?
The statements expressed above are only for informational purposes and should be independently verified. Please see our terms of service for more details
  1. Home
  2. Questions
  3. Ignition coil overheating

Get an instant quote for your car

Our certified mechanics come to you ・Backed by 12-month, 12,000-mile guarantee・Fair and transparent pricing

Get a quote

What others are asking

Q: After smoking, car will not hold coolant.

You may have a leak in your radiator. If you poured more coolant into it and it came right back out a leak exists somewhere. If the leak is that fast, it should be obvious to the eye without having...

Q: Was driving on the expressway and my car started shaking, check engine light turned on, oil light turned on and off

Hello, thank you for writing in. Shaking and vibrating typically comes from a misfire, or poor engine performance. A lack of oil will absolutely contribute to these symptoms and amplify them, if not cause them to begin with. You want...

Q: My car starts sometimes and other times it cranks over like normal but won't start.

First check on your vehicle service records to see if the maintenance is up to date. If you can smell fuel at the back of the car while the car will not start then you may have an issue with...

Related articles

What Causes Hoses to Leak?
While the largest part of your engine is mechanical, hydraulics plays a significant role. You’ll find fluids at work in a number of different areas. Your car's fluids include: Engine oil Transmission...
How Long Does a Distributor O Ring Last?
The distributor is part of the ignition system in your vehicle and its purpose is to route high voltage from the ignition coil to the spark plug. The spark plug then...
How Long Does a Heater Control Valve Last?
Keeping the right amount of coolant in a car is essential in keeping the engine at the right temperature. Failing to have the right amount of coolant or even bad elements...