Blown Out Spark Plug! [Should You Drive With It or Not]

Do you own a vehicle with a blown spark plug? You won’t be alone if you choose to say so. A blown spark plug occurs with 8% of Americans at some point in their driving careers, according to the National Safety Council (NSC). It’s crucial to take action as soon as possible if your automobile isn’t drivable due to a blown spark plug.

Blown spark plugs can cause the engine to miss, which can lead to a loss of control and an accident. In fact, a blown spark plug is the number one cause of car accidents in the United States. If you have a blown spark plug, don’t drive your car. In this article, we’ll discuss the dangers of driving with a blown spark plug and provide tips on how to identify and fix the problem.

Can You Drive With a Blown Spark Plug?

Driving with a blown spark plug can be incredibly dangerous. A blown spark plug means that the air/fuel mixture in the engine is not properly burning, which can cause your car to lose control and crash. In fact, a burnt-out spark plug is one of the most common causes of car accidents in America.

If you notice that your car isn’t driving well because of a broken spark plug, don’t attempt to drive it yourself – call a tow truck or take your vehicle to a mechanic. If you try to drive with a blown spark plug, you could end up in serious trouble.

Why Your Spark Plug Could Be Blown?

There are a few reasons why your spark plug could be blown. The most common reason is because of a broken wire in the ignition coil. If this wire is broken, it can cause sparks to blow out of the plug instead of being directed towards the spark plugs inside the engine.

Other causes include worn or damaged parts inside your vehicle’s engine that affected how well electricity traveled through those parts. Besides, wet weather conditions can create road salt deposits that can block electricity from reaching the spark plugs.

Sometimes, the cause is simply an issue with the electrical system of your vehicle – for example, if there’s a problem with your fuse box or the ground cable. In other cases, a spark plug may simply fail due to excessive heat – as, if your engine is running hot.

What Are the Symptoms of a Damaged Spark Plug?

If you are experiencing one or more of the following symptoms, it is likely that your spark plug has been damaged and needs to be replaced:

  1. Poor Performance or Loss of Power
  2. Rapid and Irregular Firing
  3. Frequent Misfiring
  4. Rough Running
  5. Excessive Engine Noise
  6. Poor Fuel Economy

How Much Does It Cost to Fix a Blown-out Spark Plug?

The cost of fixing or replacing a blown spark plug can vary but is usually quite affordable. In most cases, you will need to take your car for repairs and the costs will depend on the make and model of your vehicle as well as what type of spark plug you need to replace or fix. But in general, expect to pay anywhere from $50-$100 for a new spark plug depending on the brand and model of your car.

How Can You Prevent a Spark Plug Blowout?

There is no guaranteed way to prevent a spark plug from blowing out but there are some simple precautions you can take. For example, make sure your vehicle’s engine is properly tuned and that all the parts inside it are in good condition. 

Also, keep your car clean – especially around the spark plugs – by regularly cleaning the area with a degreaser or an anti-bacterial cleaner. Last but not least, make sure you replace your spark plugs when their replacement is recommended by the manufacturer. Use the right type of spark plugs – Make sure you are using the right type of spark plugs for your car.

How To Fix Oily Spark Plugs?

Spark plugs often become oily if any tube in its vicinity leaks. Oily spark plugs do not cause any major problems but do produce a burning odor or smoke. In this case, you can fix the oily spark plug by following the steps below.

  1. First, unplug the spark plug wires and set aside.
  2. Now, remove the clamps from the hose to the valve cover and pull them.
  3. Remove any wiring harness you notice on the way to remove the valve cover.
  4. Since the spark plug tube is built into the valve cover, so you need to remove the valve cover to replace them. So, now remove the valve cover.
  5. Sometimes the valve cover gets stuck. In this case, take the help of a screwdriver.
  6. Find the leaked seals. Remove old spark tube gaskets.
  7. Add new spark tube gaskets. Before that, place a sealer over the gaskets, then place them on top of the spark plug tube.
  8. Tighten the bolts again. Then reinstall the spark plug wire, hose – everything.
  9. If any oil spills on the engine while completing the tasks, clean it with a brake cleaner. Otherwise, the car will smoke while starting the engine.

Risks of Driving With a Blown Spark Plug

There are a few potential risks associated with driving with a blown spark plug. The most common problem is a loss of power steering, which can make it difficult to steer the car. In extreme cases, the engine may not start. If this happens, you may be stranded on the side of the road. 

Other problems that can occur due to a blown spark plug include weak brakes, warning lights on the dashboard, and a rough ride. If you experience any of these symptoms, it is important to get the car checked out by a mechanic as soon as possible.

Frequently Asked Questions

How Far Can You Drive With a Blown-out Spark Plug?

Generally, you can drive to the nearest service station or mechanic and have the plug replaced. However, if you experience any of the following problems, it may be best to take your car in for repair: power steering is difficult to control; warning lights appear on the dashboard; engine does not start; car rides rough.

What Happens if a Spark Plug Blows?

If a spark plug blows, the resulting explosion can damage vehicle components including the engine, drivetrain, and exhaust system. In extreme cases, this explosion may result in serious injury or even death. If you experience any of these symptoms after your car has been blown out by a sparkplug malfunction please take it to an automotive specialist immediately for inspection and repair.

How Frequently Should We Replace the Spark Plugs?

The best way to determine how often your spark plugs need to be replaced depends on the type of driving you to do and how well your vehicle is maintained. Generally, it is recommended that spark plugs be replaced every 30,000-90,000 miles (48,000-144,000 km).

Can I Drive With a Blown Spark Plug?

If your car is inoperable due to a blown spark plug, you should take it to an automotive specialist for repair. Driving with a blown spark plug can lead to safety issues and may even result in injury or death.

Can You Run an Engine With a Broken Spark Plug?

No, you cannot run an engine with a broken spark plug.

Can You Drive With Burnt-out Spark Plugs?

Yes, you can drive with burnt-out spark plugs provided that the engine is able to start. However, if the engine does not start, it is best to take your car in for repair. Blown spark plugs can lead to a dangerous situation where the engine will not restart. Driving with a broken spark plug can lead to safety issues and may even result in injury or death.


While it may not be safe to drive with a blown spark plug, you can still drive safely. Driving while your engine is not running smoothly can be dangerous, and even deadly, so it is important to take the necessary precautions to ensure your safety. In addition to checking your spark plug, it is also important to have your car inspected regularly and make sure all the other components are in good working order. Finally, never drive if you are under the influence of alcohol or drugs, and always wear a seatbelt.

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