Is it worth replacing coil packs if you aren't getting codes
11-23-2018, 05:11 PM
#1
Is it worth replacing coil packs if you aren't getting codes
Seems like a common problem, I am wondering if it is worth dropping an additional $250 to buy new coils when doing plugs next time even if I am not getting any codes?
11-23-2018, 08:00 PM
#2
Rennlist Member
I did mine when I recently changed plugs at about 60k miles. Car displayed a restored level of power I had not realized had kinda gone missing. Mileage improved by about 2 mpg or so as well.
Plugs? Coils? Both? Who knows. But 5 of 6 coils had hairline cracks in them. Kinda figured 13-year-old car, 60k miles, etc. meant I was due. Am glad I did it.
Plugs? Coils? Both? Who knows. But 5 of 6 coils had hairline cracks in them. Kinda figured 13-year-old car, 60k miles, etc. meant I was due. Am glad I did it.
11-23-2018, 10:18 PM
#3
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11-23-2018, 10:29 PM
#4
Rennlist Member
I did mine at 10 years time not miles.
Fister D going on so I did plugs and coil packs.
With mufflers off its super easy and time was due. Manual said 10 years for sparky so while I was there....
Car has 30k miles and my other 10k. 996 and 997. Both with Fister D. Both at 10 years.
Fister D going on so I did plugs and coil packs.
With mufflers off its super easy and time was due. Manual said 10 years for sparky so while I was there....
Car has 30k miles and my other 10k. 996 and 997. Both with Fister D. Both at 10 years.
11-24-2018, 06:27 AM
#5
I would change the coils because they have been updated recently and hopefully will give more reliable service. I’ve had problems twice with my 981 Cayman (track car). The first time the car was far from home and the coil problem made the return trip very stressful. The second time there were error codes being thrown but prior to any overt symptoms. I also noticed an improvement in power after the 40k mile plug+coil change.
My belief is that the coil problems are related to excessive heat. My car now has a third radiator and I am careful to cool the engine temps by driving at low speeds for a few minutes after hot laps. So far so good.
My belief is that the coil problems are related to excessive heat. My car now has a third radiator and I am careful to cool the engine temps by driving at low speeds for a few minutes after hot laps. So far so good.
11-28-2018, 12:59 PM
#7
Instructor
I would also recommend replacing them. My 06 S had 65K miles on it when I bought it and this was one of the first things I did. I replaced with the thicker coil packs and larger bolts that came with them while doing the plugs. Turned out 4 of the 6 had cracks in them. The most helpful tools I had when changing plugs were a 2 ft. socket wrench extension and a swivel head with the deep socket pug tool. Made this job much easier than I have read from others.
Not sure about testing without replacing.
Not sure about testing without replacing.
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11-28-2018, 02:20 PM
#8
Rennlist Member
I would replace them all with the most recent renditions. $250 is a cheap insurance policy against the hassle that one goes shortly after installing plugs or, even worse, immediately fails because of the jostling involved in replacing the plugs.
11-28-2018, 05:00 PM
#10
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You should go ahead now if you have the extra cash,
if not eventually you will have to have it done.
I just did all of them on my 957 S she runs a lot more efficient
and better mpg's
Good Luck
if not eventually you will have to have it done.
I just did all of them on my 957 S she runs a lot more efficient
and better mpg's
Good Luck
11-29-2018, 10:33 AM
#11
Rennlist Member
I would replace when doing plugs, but keep the old ones around as spares, especially if you track.
