Spark plugs & coil packs

striktlysubie · 06-26-2024, 12:24 PM

Soon, I'll be taking my 2015 WRX into the tuner for more work and general maintenance. As it approaches 90k miles, I'm planning to change out the spark plugs again (they are not original and have about 50k on them). The car hasn't been running great, so the plugs may reveal other issues. While that work is being done, thoughts on also replacing the coil packs? Worth it or typically a waste?

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that315wrb · 08-01-2024, 08:39 PM

Quote:

Originally Posted by striktlysubie

Soon, I'll be taking my 2015 WRX into the tuner for more work and general maintenance. As it approaches 90k miles, I'm planning to change out the spark plugs again (they are not original and have about 50k on them). The car hasn't been running great, so the plugs may reveal other issues. While that work is being done, thoughts on also replacing the coil packs? Worth it or typically a waste?

Personally I think if the coils are original with 90k, all those heat cycles take a toll on them, I would replace them just for piece of mind knowing they are new.

striktlysubie · 11-24-2024, 11:30 PM

I will be doing the plugs and coils at the same time. Shop I am using does not charge extra labor if doing the coils at the same time as the plugs.

striktlysubie · 01-04-2025, 12:01 AM

Work completed. Revealed a massive amount of oil leaking into all the plug cylinders. Turned into quite the job to clean that all out, and replace the valve cover gaskets and some other parts. One thing led to another, but it's done.

06-26-2024, 12:24 PM	#1
striktlysubie Scooby Newbie Member#: 423516 Join Date: Jun 2015 Chapter/Region: NESIC Location: RI Vehicle: 2015 WRX Premium Lightning Red	Spark plugs & coil packs Soon, I'll be taking my 2015 WRX into the tuner for more work and general maintenance. As it approaches 90k miles, I'm planning to change out the spark plugs again (they are not original and have about 50k on them). The car hasn't been running great, so the plugs may reveal other issues. While that work is being done, thoughts on also replacing the coil packs? Worth it or typically a waste? * Registered users of the site do not see these ads.

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11-24-2024, 11:30 PM	#3
striktlysubie Scooby Newbie Member#: 423516 Join Date: Jun 2015 Chapter/Region: NESIC Location: RI Vehicle: 2015 WRX Premium Lightning Red	I will be doing the plugs and coils at the same time. Shop I am using does not charge extra labor if doing the coils at the same time as the plugs.

01-04-2025, 12:01 AM	#4
striktlysubie Scooby Newbie Member#: 423516 Join Date: Jun 2015 Chapter/Region: NESIC Location: RI Vehicle: 2015 WRX Premium Lightning Red	Work completed. Revealed a massive amount of oil leaking into all the plug cylinders. Turned into quite the job to clean that all out, and replace the valve cover gaskets and some other parts. One thing led to another, but it's done.