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  1. 10R80 Owners - ULTIMATE M6G 10R80 Facts + Resolutions to harsh or no shift conditions

    I was hit with the one way clutch failure in January (2018 GT). Total trans rebuild - car was down for a full month. Since then, aside from a misfire issue (took 3 trips to the dealership to figure out it was a damaged O2 sensor o-ring causing water to leak into the sensor and corrode the pins -...
  2. 2018 GT PP1 10R80 fuel/fire issue

    Poor choice of words on my part - I know - just implying that with the extensive tear down and reassembly of everything, I am wondering if the sensor was damaged during the transmission repair.
  3. 2018 GT PP1 10R80 fuel/fire issue

    So quick update with more to follow - my car went down with a misfire AGAIN last Friday. Back to the dealership - they called Ford Tech support who suggested changing some of the O2 sensors. When they did, they found water in one of the sensors and feel this is the cause of the misfire. I've...
  4. 2018+ 10R80 low on transmission fluid....

    My 10r80 failed (one way clutch) in January with only 7000 miles on the car. It's been behaving since it was rebuilt (stock Ford parts). Someone here mentioned that the 10r80 hold gears longer until it's warmed up - not sure if that it true or not, but mine does seem to hesitate a little bit on...
  5. Looking To Purchase A Mustang Convertible, Some Questions

    I've rented two Mustang convertables (both ecoboost with the a-10) on work trips in the past two years. I was surprised at how much I liked them given that my daily driver is an 18 GT hardtop. Tons of fun (one was in LA and one in Phoenix - so the weather was perfect for them).
  6. Do you take cell phone pics constantly of your s550 ? Post them here !!!

    Just washed, waxed, and detailed this morning (by me, not professionally).
  7. MAGNETIC S550 MUSTANG Thread

    I'm heavily biased, but Ford does metal flake from the factory better than just about anyone - My 2018 compared to my previous car (2012 Charger R/T) that was a similar color (Tungsten Metallic).
  8. 10R80 Mustang Down...Again

    How's your car running since the second visit? I swear mine was still shifting a little rough for the first few weeks I had my car back. Since I got it back from it latest misfire issue, it's been running like butter. I've never taken it to a track or dragstrip (before or after the tranny...
  9. 10R80 Mustang Down...Again

    Thanks, man. I got the car back Thursday, and it's running smoother than it has been in months (at least since I got it back from the transmission rebuild in Feb). Makes me wonder how long this issue has been going on (service dept. confirmed a misfire, changed the plug on no. 8 cylinder, and...
  10. 2018 GT PP1 10R80 fuel/fire issue

    I got the car back yesterday. Service notes included below. It looks like my car was showing both the p0316 and p0308 codes. Based on TSB 18-2130, they reset the PCM and performed a neutral misfire correction relearn. After a short test drive, the p0308 code returned, and they replaced the...
  11. 10R80 Mustang Down...Again

    For the current issues - I have a thread started here: https://www.mustang6g.com/forums/threads/2018-gt-pp1-10r80-fuel-fire-issue.142298/. I don't want to hijack the OP's post as I hope others have thoughts that can help him out.
  12. 10R80 Mustang Down...Again

    This sucks man. My stock 2018 GT Premium PP1 10R80 went down in January with a little over 7000 miles on it with a one way clutch failure. They rebuilt the tranny (took a month to get the parts from Ford), and I haven't had any major transmission issues since then (it's never been on a track or...
  13. 2018 GT PP1 10R80 fuel/fire issue

    Welp... Same issue this morning on my way to work. Rough idling (RPMs jumping from 500-1000 sitting at complete stop with the car in normal drive mode, hesitant acceleration, and some surging with intermittent check engine light. Turned around and drove it home, and by the time I got there, the...
  14. 2018 GT PP1 10R80 fuel/fire issue

    Morning, everyone, My 2018 GT PP1 10R80 went through the 1-way clutch failure/trans issue earlier this year (history/service notes posted in this thread: https://www.mustang6g.com/forums/threads/10r80-owners-ultimate-m6g-10r80-facts-resolutions-to-harsh-or-no-shift-conditions.135463/) Since...
  15. 6 pack of beer to whomever guesses correctly. 10r80 issue.

    The broken one way clutch and accompanying issues in my car occurred in mid-January. It was a full month before the dealership could get the parts and get my car repaired. COVID-19 wasn't a thing at that time, but I definitely believe it could be a factor now. I asked the service manager at the...
  16. 6 pack of beer to whomever guesses correctly. 10r80 issue.

    Same issue with my 2018 GT pp1 in January - one way clutch went out suddenly with only about 7500 miles on the car. Took the dealership in GA nearly a month to get the parts and get me back on the road. I hope your repairs go more quickly and smoothly.
  17. Welcome to AtlantaS550s!

    New member - live in Suwanee, work in Lawrenceville.
  18. Georgia Roll Call

    Suwanee, GA checking in. Relatively new to the forum but interested in learning more about local groups and drives.
  19. 10R80 Owners - ULTIMATE M6G 10R80 Facts + Resolutions to harsh or no shift conditions

    I've attached scanned copies of the service notes below: So far so good since getting back on the road.
  20. LED sidemarkers

    I'll add my endorsement for the Diode Dynamics LED side markers (red) - got them from CJ's. I've been very happy with the look and have had them on the car for about 1-year with no issues.


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