Skip the auto shop - Our mechanics make house calls

Q: Spark plug stuck right in the head, how bad is it?

asked by on

I was replacing the spark plugs in my 2007 Ford Explorer when one broke off right there in the cylinder head! I'm glad that I was able to get 136,000 miles out of my truck before having a problem, but am disappointed that this made it through all the checks and inspections at the factory. I am worried that the cylinder head could get damaged removing one of these plugs. What can be done?

A: The spark plugs in your engine have an exte...

The spark plugs in your engine have an extended shield on the tip of each plug. This shield will get a carbon ring build-up over time and if you try to remove the plug, the carbon will bind the treads and possibly break off the lower part of plug in the hole. To remove plugs, you have to loosen each plug about 1/8 turn, then put carbon cleaner in each plug hole and let it sit for a couple of hours to soften the carbon on the plug tip. Then, by hand using constant turning, take out each plug. If one or more break off, you will need the special plug end removal tool, Rotunda 303-1203 or equal, to remove the broken off piece. If the tool cannot remove it, then the head would have to be removed to extract the piece.

Was this answer helpful?

Need advice from certified mechanic? Get help now!

Over 1000 mechanics are ready to answer your question.
The statements expressed above are only for informational purposes and should be independently verified. Please see our terms of service for more details

Get an instant quote for your car

Our certified mechanics come to you ・Backed by 12-month, 12,000-mile guarantee・Save up to 30%

Get a quote

What others are asking

Q: What will make a battery drain quickly? It doesn't happen every day but it happens 2-3 days a week.

i would suggest checking the voltage regulator. This is a unit that regulates the charging of the battery by the alternator, making sure that the battery receives the correct amount of amperage when charging. When this is not working properly,...

Q: Battery grounded power wire - 1980 Chevrolet C30

Your first starting effort probably created enough heat within the starter motor to melt the windings, shorting them. This just causes more power to be directed to an already hot starter motor. Kills the starter. Take it out and have...

Q: While driving in cruise control it stopped driving but it didn't cut off

Hello there. A few common faults will cause your cruise control to cut out with your 2009 Ford Explorer. The most common faults would be the cruise control module, throttle cable, throttle body, or a fuel pump. I recommend having...

Related articles

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...
P2428 OBD-II Trouble Code: Exhaust Gas Temperature Too High Bank 1
P2428 code definition A P2428 trouble code signifies that the PCM has detected a problem in the exhaust gas temperature sensor circuit in bank 1, which subsequently contains the number one...
P2103 OBD-II Trouble Code: Throttle Actuator Control Motor Circuit High
P2103 means there is a fault with the throttle actuator control motor circuit, likely due to a defective electrical component or part.