Jump to content

The RennTech.org community is Member supported!  Please consider an ANNUAL donation to help keep this site operating.
Click here to Donate

Welcome to RennTech.org Community, Guest

There are many great features available to you once you register at RennTech.org
You are free to view posts here, but you must log in to reply to existing posts, or to start your own new topic. Like most online communities, there are costs involved to maintain a site like this - so we encourage our members to donate. All donations go to the costs operating and maintaining this site. We prefer that guests take part in our community and we offer a lot in return to those willing to join our corner of the Porsche world. This site is 99 percent member supported (less than 1 percent comes from advertising) - so please consider an annual donation to keep this site running.

Here are some of the features available - once you register at RennTech.org

  • View Classified Ads
  • DIY Tutorials
  • Porsche TSB Listings (limited)
  • VIN Decoder
  • Special Offers
  • OBD II P-Codes
  • Paint Codes
  • Registry
  • Videos System
  • View Reviews
  • and get rid of this welcome message

It takes just a few minutes to register, and it's FREE

Contributing Members also get these additional benefits:
(you become a Contributing Member by donating money to the operation of this site)

  • No ads - advertisements are removed
  • Access the Contributors Only Forum
  • Contributing Members Only Downloads
  • Send attachments with PMs
  • All image/file storage limits are substantially increased for all Contributing Members
  • Option Codes Lookup
  • VIN Option Lookups (limited)

Recommended Posts

Curious to know who's got the "world record" haha.


I just crossed 130k on my 04 CTT.  on my way to work one day and it starts stumbling.  Instantly i'm thinking coil packs, but it clears up as i'm coming home.


Pull the codes, see a misfire cyl 7.  pull the pack, cracked.  pulled all of them, 7 of the 8 were also cracked.  Order 8 new ones.


What's interesting is i had -02 revision packs, which i believe would have been original factory packs, or at least **** close.  130k is pretty good compared to some of the others i've heard about.


What's also interesting is how quickly they fail.  i had just done plugs at 120k, and inspected all the packs.

  • Upvote 1
Link to comment
Share on other sites

110k km on my ctt replaced with new and plugs (of plugs had seen 80k if the receipts were all true), didn't really notice much change. The old Coils look fairly good so have kept as emergency spare for future.

As you will see from my other post I have head Gasket failure hence my hesitation problem is now diagnosed.

Link to comment
Share on other sites

  • 2 months later...

80k miles, I felt some hesitation and pulled all 8 coils out of my 2004 CTT. All were cracked and split as shown here in the photo. Some were cracked on the other side and I couldn't get them to stay still for the photo.


These were all -02 revision. New ones I put in were -21 but looked superficially the same. 


Unfortunately I could only change 7 of the 8 since one of the new coils I bought had been subjected to some trauma and had a crushed connector. I joked that it came pre-cracked from the factory. I have yet to install the last new coil. 


Changed all the plugs as well without any drama. Unfortunately one of the bolts holding the coil pack in stripped out when reinstalling, they look brass in appearance and a new bolt looks aluminum, now my next job is to repair that. 



Link to comment
Share on other sites

Join the conversation

You can post now and register later. If you have an account, sign in now to post with your account.

Reply to this topic...

×   Pasted as rich text.   Paste as plain text instead

  Only 75 emoji are allowed.

×   Your link has been automatically embedded.   Display as a link instead

×   Your previous content has been restored.   Clear editor

×   You cannot paste images directly. Upload or insert images from URL.

  • Create New...

Important Information

We have placed cookies on your device to help make this website better. You can adjust your cookie settings, otherwise we'll assume you're okay to continue.