How Much Does It Cost To Fix A Blown Out Spark Plug

Spark plugs are tiny but powerful parts of an engine that ignite the mixture of fuel and air to begin the combustion process. On the other hand, a blowout spark plug can cause problems for your car and your pocketbook. The cost of replacing a blown-out spark plug can vary significantly based on the kind of vehicle, the extent of the damage, and whether or not other repairs are required. How much does it cost to fix a blown out spark plug? Continue reading to learn the cost consequences of a blown-out spark plug and how to budget for this unplanned expense.

Blown out Spark Plug Repair Cost Guide

The cost of fixing a blown-out spark plug varies based on the extent of the damage and the kind of work that needs to be done. The cost of restoration for minor damage, like a little crack or pulled thread, can vary from $100 to $300. But the price can go up to more than $1000 if the damage is more severe and calls for a total engine head overhaul.

A damaged or broken spark plug leads to your engine failing

Parts repair cost

Your pocketbook may also be impacted by the parts required for blown-out spark plug repair. The spark plug alone might only cost you $10 to $20, but replacements might run into hundreds or even thousands of dollars if the cylinder head or other engine parts are damaged. Before beginning repairs, it is crucial to evaluate all possible damages in detail and set aside money for the necessary materials.

Spark plug cost

The spark plug itself could appear to be a reasonably priced component at first, but when installation labor expenses and possible gas waste from inefficient combustion are taken into account, the total cost of the plug can approach $150.

Insert Kits Prices

Insert kit prices for repairing blown-out spark plugs typically range from $50 to $150 depending on their quality and brand. High-quality insert kits may be pricier but offer long-term reliability and better performance compared to cheaper alternatives.

Engine fixing costs

The cost of replacing an engine caused by a blown spark plug typically involves labor fees, which can range from $500 to more than $1000, contingent on the complexity of the repair and the possibility that other problems will be found during diagnostic and inspection.

Dealerships Costs

There is a literal cost associated with the dealership’s allure. Dealerships can be expensive for many automobile owners, despite the fact that they provide access to the newest models and the allure of brand expertise. Higher labor rates and more expensive parts are a result of the additional costs associated with operating a showroom and hiring salespeople. It’s crucial to keep in mind, though, that dealerships occasionally give original manufacturer parts and warranty-backed services, which come at a price but provide peace of mind.

Local repair shops 

Repair companies that cater to consumers looking for affordable solutions without sacrificing quality can be found tucked away in local areas. These independent garages usually provide cheaper hourly labor rates, which enables drivers to save a lot of money on regular maintenance and repairs. Charges of local repair shops are approximately between $450 to $800.

Auto service centers

Auto service centers that try to find a balance between high-end dealership servicing costs and reasonable local repair businesses are tucked away from each other. Many service centers attract cost-conscious customers seeking dependability and value for money by providing affordable pricing structures in addition to manufacturer-recommended procedures. They depend on center to center. The expected minimum charges are $600 and the maximum is approximately $1000.

Costs According to Car Models

Generally, excessive-overall performance or luxury automobiles have a tendency to have extra complicated engines and specialized elements, main to higher restoration expenses. For instance, for popular luxurious fashions like BMW or Mercedes-Benz, the value of changing a blown-out spark plug can vary from $200 to $500, thinking about the want for specialized hard work and parts. And exotic cars like Ferrari or Lamborghini blown spark plug repair costs range from $800 to well over $1000. You must know the Ford F150 blown-out spark plug repair cost.

On the other hand common vehicle models like Honda or Toyota, These vehicles have blown-out spark plug replacement costs that typically fall in the range of $100 to $300.

How to Find Out Whether Spark Plugs Have Blown Out

  • Examine the spark plugs visually first for any indications of deterioration, such as cracks or bending in the electrode.
  • Frequent misfiring or harsh idling in your car could indicate that the spark plugs need to be changed.
  • Keep an ear out for any odd noises coming from the engine, such as a popping sound that can be a sign of a blown spark plug.
  • An abrupt loss of power when accelerating may also indicate a possible spark plug problem.
  • Monitor the fuel efficiency of your car; a significant drop in mileage may indicate a problem with the spark plugs.
  • Examine the ignition coils attached to every spark plug; they might reveal important information about the plugs’ overall health.
  • Make use of diagnostic instruments like an OBD-II scanner to look for particular spark plug trouble codes.
  • To find out if there are any problems with combustion brought on by defective spark plugs, think about performing a compression test on every cylinder.
  • It’s wise to consult a reliable professional if you’re unsure how to recognize blown-out spark plugs.
  • Frequent documentation and examination of maintenance tasks facilitate the identification of patterns and trends associated with possible spark plug problems.


The amount of damage and the vehicle’s make and model might affect how much it costs to fix a blown-out spark plug. In more extreme circumstances, costs could reach hundreds of dollars, even though some basic fixes might only cost a few hundred. Car owners must take immediate action to resolve this problem in order to stop future engine damage and save future, more expensive repairs. Spark plugs may be kept from blowing out in the first place with regular maintenance and inspection, which will eventually save money. It is advised that you have a professional mechanic examine your car if you think it may have a blown-out spark plug and provide an accurate estimate for repair costs.


1:- What replacements are required for fixing blown out spark plug

You will need a new spark plug, a thread insert kit, and the appropriate tools to fix a blown-out spark plug.

2:- What is the spark plug hole called?

The hole where the spark plug is inserted is called the spark plug well or spark plug hole.

3:- How to avoid the spark plug blowing out?

To avoid a spark plug blowing out, make sure to use the correct torque when tightening the spark plug, ensure proper thread engagement, and replace worn or damaged spark plugs promptly.

4:- Is a blown-out spark plug expensive to fix?

The cost varies depending on the type of vehicle and the extent of damage, but it can range from $100 to $400.

5:- Will insurance cover the cost of fixing a blown-out spark plug?

It depends on your specific policy and the circumstances surrounding the damage.

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