GT4 G81 Transmission Failure
02-26-2017, 09:46 PM
#661
Nordschleife Master
If it's just a sensor why aren't they just unbolting it from the box and replacing it. Rubbish. The synchro teeth Aka dogs, are snapping off the idler gears.
02-26-2017, 11:30 PM
#663
Race Director
Originally Posted by Gofishracing
keep on focus- GT4 transmission. fyi- The GT4's at Barber pulled. No longer in car program. An amazing facility but no GT4's From my earlier post on what I thought was GT4 transmission-it looks like they were splinned but not now?
02-27-2017, 12:25 AM
#664
02-27-2017, 03:50 AM
#665
GT3 player par excellence
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Lifetime Rennlist
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perhaps new info- It was indicated today that the transmission failure is actually a sensor inside transmission. That 's why we don't hear any grinding or catastrophic incidents. Not the Gear. And only on later cars. PNA was hammering on their fleet at Barber and had no failures it is said. food for thought ....
02-27-2017, 09:19 AM
#666
Rennlist Member
BTW, it was a lot of fun, and I really liked the kick plate.
02-27-2017, 10:10 AM
#668
Rennlist Member
I was at Barber in January and they had just taken the GT4s out 
Was at VIR all weekend and, with a 4/16 build and 4k total miles, was halfway expecting 3rd gear to go away, but it did not. Only one other GT4 there and he had no issues...If this is a prevalent issue, like it seems, we should see more failure reports starting about now with track weekends going.
BTW: one non-Porsche person asked me if the GT4 was more powerful/better than the GT3 - I said "of course, that's why it has a higher number"
Also, I was getting an alignment at my dealer in NC, and asked if they had seen any GT4 transmission failures and they had not.
Was at VIR all weekend and, with a 4/16 build and 4k total miles, was halfway expecting 3rd gear to go away, but it did not. Only one other GT4 there and he had no issues...If this is a prevalent issue, like it seems, we should see more failure reports starting about now with track weekends going.
BTW: one non-Porsche person asked me if the GT4 was more powerful/better than the GT3 - I said "of course, that's why it has a higher number"
Also, I was getting an alignment at my dealer in NC, and asked if they had seen any GT4 transmission failures and they had not.
02-27-2017, 11:32 AM
#669
"The GT2 is slower than a snail with arthritis when you put it up against the GT4" 
03-01-2017, 01:39 AM
#670
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Join Date: May 2014
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My car is done after 26 days
Had a small hiccup as the transmission cooler on the new unit was damaged in transit... Porsche should really step up and get this transmission packaged better!
Had a small hiccup as the transmission cooler on the new unit was damaged in transit... Porsche should really step up and get this transmission packaged better!
03-01-2017, 09:49 AM
#672
Rennlist Member
When looking for a GT4, I asked my dealer about the fleet used at the Porsche school at Barber. He said these most likely eventually go to auction, and be sold "as new" because they have not been titled. It will be interesting to see a hundred or so "new" GT4s come on the market with several thousand miles already on them. I think most of them were yellow and early builds, which seem to be resistant to the 3rd gear issue.
03-01-2017, 10:37 AM
#674
Rennlist Member
When looking for a GT4, I asked my dealer about the fleet used at the Porsche school at Barber. He said these most likely eventually go to auction, and be sold "as new" because they have not been titled. It will be interesting to see a hundred or so "new" GT4s come on the market with several thousand miles already on them. I think most of them were yellow and early builds, which seem to be resistant to the 3rd gear issue.
I wonder if they must have some type of "fleet" or "demo" designation. I also wonder how they were broken in (under 4K rpm for first 2k miles?)
03-01-2017, 12:01 PM
#675
