Mileage of 991.1 GT3 engine failures?
#92
Might or might not be. You can take it to Porsche or a Local shop to get it diagnosed. Hard to say that it is a FF issue.
#93
In 2-3 years, post-warranty, .1 cars have a market bifurcation: G6 equipped .1’s migrate closer to .2 prices, F and maybe G0 .1’s keep this $40k delta.
Compared to past model’s changes (say 997.1 to .2) there’s not much performance and equipment difference between a 991.1 GT3 and .2 (23 hp, some bling) so the current material price delta is largely due to the engine issue. Unless new data emerges, the G6 replacement engines are proving bulletproof. Obviously this price bifurcation happening is dependant on the broader market understanding the issues (or lack thereof).
Compared to past model’s changes (say 997.1 to .2) there’s not much performance and equipment difference between a 991.1 GT3 and .2 (23 hp, some bling) so the current material price delta is largely due to the engine issue. Unless new data emerges, the G6 replacement engines are proving bulletproof. Obviously this price bifurcation happening is dependant on the broader market understanding the issues (or lack thereof).
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Mthrice (05-08-2022)
#96
Wow...I had a G6 engine installed and picked up my car within two weeks after I dropped it off at the dealer.
#97
2016 GT3, G1 engine went at 24,000km. My question now is (car has been at the dealer for 3 weeks) how long does it take for Porsche to green light the replacement?.
#98
The problem is that each of those diagnosis steps require clearing the codes, getting another fault, rinse and repeat. If they're not efficient at getting the ecu fault then they'll send you home with new spark plugs at your expense.
I'm a broken record but with my car we found the best way to get the faults to trip again was to have the techs get on a flat/safe spot of road, shift to second and slowly get up to 9k at partial throttle and hold it in the rev range for a brief couple of seconds. Just driving it around and shifting at the rev limiter at dangerous speeds is not only bad for your car, but dangerous for society in general. Suggest to your SA to have the techs do that if they're not familiar with the MA175 replacement process as I'm sure they want that bay hog out of there as fast as you do.
Good luck!
Last edited by itrsteve; 05-10-2022 at 09:03 PM.
#99
The big time delay is that there's a string of diagnosis steps prior to getting authorization to crack the engine open and visually inspect (which is insanely quick thereafter).
The problem is that each of those diagnosis steps require clearing the codes, getting another fault, rinse and repeat. If they're not efficient at getting the ecu fault then they'll send you home with new spark plugs at your expense.
I'm a broken record but with my car we found the best way to get the faults to trip again was to have the techs get on a flat/safe spot of road, shift to second and slowly get up to 9k at partial throttle and hold it in the rev range for a brief couple of seconds. Just driving it around and shifting at the rev limiter at dangerous speeds is not only bad for your car, but dangerous for society in general. Suggest to your SA to have the techs do that if they're not familiar with the MA175 replacement process as I'm sure they want that bay hog out of there as fast as you do.
Good luck!
The problem is that each of those diagnosis steps require clearing the codes, getting another fault, rinse and repeat. If they're not efficient at getting the ecu fault then they'll send you home with new spark plugs at your expense.
I'm a broken record but with my car we found the best way to get the faults to trip again was to have the techs get on a flat/safe spot of road, shift to second and slowly get up to 9k at partial throttle and hold it in the rev range for a brief couple of seconds. Just driving it around and shifting at the rev limiter at dangerous speeds is not only bad for your car, but dangerous for society in general. Suggest to your SA to have the techs do that if they're not familiar with the MA175 replacement process as I'm sure they want that bay hog out of there as fast as you do.
Good luck!
It's obvious the engine has failed, it barely idles and will die if you hit the accelerator. Both plugs and coil packs are less than a year old.
#100
Any ideas anyone? The car is mostly a track car, so breakdowns will always be far from home.
Last edited by Paul in San Jose; 05-19-2022 at 07:51 PM.
#101
#102
On my way back to the dealer to pick up the car. They acknowledge the knocking/tapping noise, but have not found the cause so suggest I just keep driving it until it throws a code. They checked the oil and compression, both no problem. They say next step is $5500 disassembly to inspect valves, still no guarantee they would find anything, so they don’t expect me to authorize this.
Any ideas anyone? The car is mostly a track car, so breakdowns will always be far from home.
Any ideas anyone? The car is mostly a track car, so breakdowns will always be far from home.
#103
On my way back to the dealer to pick up the car. They acknowledge the knocking/tapping noise, but have not found the cause so suggest I just keep driving it until it throws a code. They checked the oil and compression, both no problem. They say next step is $5500 disassembly to inspect valves, still no guarantee they would find anything, so they don’t expect me to authorize this.
Any ideas anyone? The car is mostly a track car, so breakdowns will always be far from home.
Any ideas anyone? The car is mostly a track car, so breakdowns will always be far from home.
#104
Anyone know how the engine “knows” it has a misfire? Would this require such extensive valvetrain wear that there should be other methods (such as oil analysis) that would give an earlier indication?
#105
I tried the 9K in second gear method, but no CEL. As luck would have it, there was a track day nearby, so I did that yesterday. The knocking was so loud it was attracting attention, but still no CEL or performance issues. I’m attaching a video to show how it sounds from about 15 feet away (it’s the dominant noise at idle). I feel it is rather ridiculous that I should have to put my neck on the line waiting for the car to self-identify a failure.
Anyone know how the engine “knows” it has a misfire? Would this require such extensive valvetrain wear that there should be other methods (such as oil analysis) that would give an earlier indication?
Anyone know how the engine “knows” it has a misfire? Would this require such extensive valvetrain wear that there should be other methods (such as oil analysis) that would give an earlier indication?