JoeRJGR

All,

Is the coil replacements limited to certain years or engines? I'm looking at an 09 V6...wondering if this engine has the issues..

Thanks

deilenberger

Coil replacements can be almost any year or engine. It's due to the design constraints on putting a coil in a hot sealed environment, and pushing it harder to make a spark that a distributor engine would get from a coil 4x the size - in open air.

They perhaps should be looked at as consumables. That said - my '11 CTT still has the original coils in it at 87,000 miles. One thing that can accelerate coil failure is worn plugs - which require an even higher voltage to fire. Replacing your plugs and examining the coils at the same time - on schedule - is a good thing.

BTW - my BMW's ate a lot more coils than my Porsches..

vandal968

All of mine were cracked, I replaced them all because everyone here always says to replace them all. I noticed no difference at-all other than my account balance. YMMV.

cheers,
c

slavie

I got the misfire code on Cyl 1 my 08 GTS just shy of 95k - pulled all coils out, all appeared to be original with early revision number. Cyl 1 and 2 coils had multiple cracks, the rest all had single crack. If you're super vigilant I suppose you could stretch it by checking it frequently and replace when you start getting more than a single crack, but I'd rather not get stranded 200 miles from home. Besides, the latest coils from the dealer set me back less than $55/coil, so not the end of the world.

vandal968

Yeah, misfire, 100% replace them asap. I'm just not on board 100% with the idea that cracked-plastic = bad coil. Perhaps that was the case with the earlier revisions, but it didn't seem to have any effect on mine. I think the ones that I replaced were .05, I still have them in a box just-in-case.

cheers,
c

stefan063

I have bought Cosmo Racing coil pack... They are much better than the stock ones I had. You should try it!