DIY 991 GT3 spark plug change
#106
Race Director
It's the time factor that at least has me wondering, especially if mileage is much lower than 12K.
#107
Burning Brakes
I changed my spark plugs for the first time this last weekend. As others have said, it was an easy, straight forward process. The only slight challenge was the "Bilstein connector" on the driver's side of the engine, which sort of blocks access to the forward plug. I used a universal and short extension (just for this plug), along with a 4" extension to remove/install this plug. Something else that has not been mentioned, is the plugs have fairly long threads, which seems to help to not cross thread them. I would also note that you should be careful to make sure you have the plugs completely unscrewed when removing, as you want them to remain in the socket for easy removal.
#108
Advanced
Highly recommend changing plugs around 10K miles or 2 years, whichever comes first.
Dealer confirmed issue due to misfire over 8K RPM while tracking car this past weekend.....basically went into limp mode at 100 MPH.
I had exactly 10K miles and 2 years since last major service. Would normally DIY, but letting dealer perform just to make sure issue resolves itself. Expensive lesson!
Dealer confirmed issue due to misfire over 8K RPM while tracking car this past weekend.....basically went into limp mode at 100 MPH.
I had exactly 10K miles and 2 years since last major service. Would normally DIY, but letting dealer perform just to make sure issue resolves itself. Expensive lesson!
#109
Race Director
I had my plugs changed(2 year service) last week after taking her out of Winter hibernation. Car is 27 months old and 5800 miles.
I had them save the Plugs so I can take a look at them and they looked like it was time to change them as well did the air filters.
Car runs like a champ. Had them also pull the DME and not a blemish.
Spent the whole weekend driving her and the car never ceases to amaze me.I am just so glad I have had the opportunity to own the .2. Very few cars can compare
I had them save the Plugs so I can take a look at them and they looked like it was time to change them as well did the air filters.
Car runs like a champ. Had them also pull the DME and not a blemish.
Spent the whole weekend driving her and the car never ceases to amaze me.I am just so glad I have had the opportunity to own the .2. Very few cars can compare
#110
Addict
Rennlist Member
Rennlist Member
Highly recommend changing plugs around 10K miles or 2 years, whichever comes first.
Dealer confirmed issue due to misfire over 8K RPM while tracking car this past weekend.....basically went into limp mode at 100 MPH.
I had exactly 10K miles and 2 years since last major service. Would normally DIY, but letting dealer perform just to make sure issue resolves itself. Expensive lesson!
Dealer confirmed issue due to misfire over 8K RPM while tracking car this past weekend.....basically went into limp mode at 100 MPH.
I had exactly 10K miles and 2 years since last major service. Would normally DIY, but letting dealer perform just to make sure issue resolves itself. Expensive lesson!
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Perimeter (03-03-2020)
#111
Race Director
I would have had them done. My car was at 5800 miles and 2 years and i can tell you that the used Plugs I had them save for me certainly suggested it was time after visual inspections of them
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Perimeter (03-03-2020)
#112
Advanced
I have a 991.1 2015 GT3 with 17K miles. Last major service was 7K in 2016, so four years....probably way over due.
Usually track 3-4 weekends per year...just in case anyone is wondering.
Driving car under normal conditions (i.e. street driving) no issues.
Usually track 3-4 weekends per year...just in case anyone is wondering.
Driving car under normal conditions (i.e. street driving) no issues.
The following users liked this post:
Perimeter (03-03-2020)
#117
Rennlist Member
Highly recommend changing plugs around 10K miles or 2 years, whichever comes first.
Dealer confirmed issue due to misfire over 8K RPM while tracking car this past weekend.....basically went into limp mode at 100 MPH.
I had exactly 10K miles and 2 years since last major service. Would normally DIY, but letting dealer perform just to make sure issue resolves itself. Expensive lesson!
Dealer confirmed issue due to misfire over 8K RPM while tracking car this past weekend.....basically went into limp mode at 100 MPH.
I had exactly 10K miles and 2 years since last major service. Would normally DIY, but letting dealer perform just to make sure issue resolves itself. Expensive lesson!
#118
Originally Posted by Perimeter
They are using BG44K fuel cleaner additive, I got a case of that stuff, albeit for a bit less than $26.50 per can
#119
Race Director
I just did my PDK clutch oil at 17.5k miles, it requires PIWIS to do it correctly. The oil that came out looked and smelled new, so probably not necessary. I will say the PDK recalibration done via the PIWIS did seem to make it shift and engage better, especially off idle. Very possible there's some placebo there though.