Q: Is there some trick to taking the coil pack off a spark plug?

asked by on October 21, 2016

First one I tried is tight, jiggles a little ( left to right) but I don't' want to force it. I thought it should slip right out.

Hey there. The coil pack is not connected directly to the spark plug. There should be a spark plug wire running from the coil pack to the spark plug with a small ’boot’ on the end of the wire that snaps onto the spark plug. These can sometimes get stuck onto the plug pretty tight. Try lightly wiggling back and forth and it should eventually come off. You can also try (if you can get it into this angle) spraying a small amount of WD-40 into the boot where the plug meets it and letting it soak for a bit before trying again. If you need assistance with this service, a qualified pro from YourMechanic, can come to your car’s location to perform a coil pack replacement.

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

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

Oil is leaking in SUV, but source can't be found

Hello. You should start by checking the oil only when the vehicle has sat for about an hour to see if more shows up. If it does then you have a clog in the return holes in the engine. If...

Car is totally dead

Sounds like you might not be getting any power out of the battery. Car batteries are 12.6 v. when they are fully charged. If the voltage is 10.5v. The car won't crank but all the accessories will still function. At...

Replaced throttle gasket, fuel pump, throttle body, & inertia switch

Hey thanks for writing in about your 2005 Jaguar XJ8. All the problems you've had is common with these vehicles as they age. You should not have any more than normal repairs with this vehicle. The fuel pump replacement should...

Related articles

What Does Ignition Timing Mean?
Timing Timing – it has a couple of different meanings when applied to your car’s engine. One of the most critical is ignition timing (not to be confused with engine timing). Ignition timing refers to when spark is created during...
How Often Should Spark Plugs Be Replaced?
While your engine runs on gasoline, it also requires electricity. It’s needed to operate most of your accessories, but is also required to...
How to Gap a Spark Plug
The The spark plug is used to ignite the air/fuel mixture inside the engine. The spark plug must be in good condition and must be properly gapped for proper engine performance. The...