How To Remove Stuck Spark Plug Boot – 5 Methods

When you have the time to change your spark plugs and you encounter a stubborn, jammed spark plug boot, frustration can rapidly set in. We’ve all been there: clutching the boot hard, twisting and straining with all our strength, only to find it’s not moving an inch. But don’t be alarmed! In this detailed instruction on how to remove stuck spark plug boot, we’ll provide you with the skills and strategies you’ll need to complete this difficult procedure. Whether you’re a seasoned technician or a do-it-yourself enthusiast, be ready to uncover the techniques that will loosen even the most obstinate of boots and have your engine humming smoothly once more.

Tools to remove stuck spark plug boot

Here are the tools you need to remove the stuck spark plug boot

1. Long-nose pliers
2. Spark plug boot puller
3. Spark plug socket and ratchet
4. Penetrating oil
5. Heat gun or torch
6. Wire brush (optional)
7. Rubber mallet (optional)

Dielectric grease can be a useful alternative for individuals who prefer a more hands-on approach. This sort of grease lubricates electrical connections while also protecting them from corrosion. Applying a tiny quantity of lubricant to the inside of the spark plug boot reduces friction and makes removal simpler when it becomes stuck.

How To Remove Stuck Spark Plug Boot -5 Methods

Tired of attempting to remove a clogged spark plug boot? Don’t be concerned; you’re not alone. It’s a typical issue for many automobile owners, and it can be quite annoying. But don’t worry, since we’ll show you five practical techniques to remove a stubborn spark plug boot in this post. These tactics will come in useful whether you’re a vehicle enthusiast or just trying to save money on repairs. So let’s get started and figure out how to solve this vexing problem once and for all!

Method 1: Using a silicone spray lubricant

Start by clearing the area around the boot of any debris or dirt that may be there. Use a little amount of the silicone spray next, being sure to coat all surfaces inside and outside the boot. Allow the lubricant to permeate and release any stuck places by letting it sit for a few minutes.

Next, apply light pressure to the boot while gently twisting and pulling it. The silicone spray will facilitate the boot’s removal without creating rips or damage. Always proceed carefully and gently when attempting to remove a jammed spark plug boot because using too much force can result in expensive damage.

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Method 2: Applying heat or boiling water

Using a propane torch is one quick and simple technique to provide heat. It frequently works if the boot is gently heated for 10 to 15 seconds. Avoid overheating and harming nearby components, as this could lead to more issues.

Boiling water is an additional technique. Put the spark plug boot in a pot of boiling water and let it sit there for a few minutes.

The dirt or accumulation will become softer with the aid of the hot water, making it simpler to remove the boot without causing any damage. The key in this situation is to be patient and wait for the heat to do its magic before attempting to remove the boot.

Related:- How To Remove Stuck Spark Plug Wires?

Method 3: Utilizing a spark plug boot puller

Make sure the engine is cool before attempting to remove the boots when utilizing a spark plug boot puller.

Simply place the boot puller’s jaws into the gap between the boot and ignition coil or distributor after the engine has had a chance to cool down. To remove the boot, carefully twist and squeeze the tool’s handles to secure them to it.

One of the key benefits of employing a spark plug boot puller is that it lessens the chance of harm coming to the spark plug wire as well as the ignition coil or distributor.

Method 4: Using pliers and twisting motion

Start by securely grasping the boot with the pliers and gradually drawing outward while giving it a moderate twist. This twisting motion makes it simpler to remove the boot by breaking any seals or adhesives that may be keeping it in place.

One important piece of advice is to use moderate pressure when using pliers and twisting. If you put too much pressure on the boot, it could become damaged or perhaps entirely break off. Instead, choose a firm but controlled grip and progressively add more pressure as necessary until the boot starts to give.

Method 5: Tapping with a rubber mallet

Starting with small, controlled blows is crucial when tapping with a rubber mallet. If more power is required, do it gradually. Be careful not to hit too hard, though; doing so could shatter the boot totally or damage other parts.

You can help remove any grip between the boot and the spark plug by tapping in various directions all over the boot.

This Video will help you to understand better

Symptoms of stuck spark plug boot

  • Difficulty starting the engine
  • Rough idling or vibration
  • Misfiring and decreased engine performance
  • Decreased fuel efficiency
  • Excessive exhaust smoke or unusual smell
  • Engine stalling or hesitation during acceleration
  • Removal of the spark plug boot is challenging
  • Visible damage or wear on the spark plug boot


In summary, removing a stuck spark plug boot may seem tough, but with the right tools and techniques, it is easy. By employing the techniques described in this article, such as using penetrating oil and a rubber mallet or pliers, you can safely remove the blocked spark plug boot from your car. It is essential to exercise caution and patience throughout this procedure in order to prevent accidents or injuries. Always consult your vehicle’s manual for complete instructions, and if you encounter any difficulties, get in touch with an expert. You can deal with a jammed spark plug boot and keep your car running smoothly by keeping these tips in mind.


1. Why is the spark plug boot stuck?

The spark plug boot can get stuck due to various reasons, such as heat, corrosion, or dirt accumulation.

2. How can I loosen a stuck spark plug boot?

You can loosen a stuck spark plug boot by using a rubber mallet or gently twisting it back and forth while pulling it off.

3. What if the spark plug boot is too tight to twist or pull off?

If the spark plug boot is extremely tight, you can use a pair of pliers with insulated handles to provide extra leverage and carefully remove it.

4. Are there any lubricants that can help in removing a stuck spark plug boot?

Yes, applying some dielectric grease or silicone spray around the base of the boot can help lubricate it and make it easier to remove.

5. Can I use excessive force to remove a stubborn spark plug boot?

It’s important not to use excessive force when trying to remove a stubborn spark plug boot, as this may cause damage to the ignition system. Always be patient and gentle during the process.

6. What should I do if the spark plug wire breaks while removing the boot?

If the spark plug wire breaks while removing the boot, you will need to replace it with a new one. It’s recommended to have spare wires on hand before attempting any maintenance.

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