Hey guys, so today I was washing my grandmas car and I had my G8 in the carport to avoid getting wet. I haven't had any issues major yet in the 35k I've put this last year except replacing the fuel pump at 88k, and a new alternator somewhere in the mid 60's. Well I went to start my car with the remote start after it sitting for about an hour and a half and instead of the usual full loud initial exhaust note, it sounded rather weak and didn't have much behind it. I went inside to start the car and it did the same thing, it had a weak initial start up exhaust note, and I noticed the voltages dip down to 10-11 but almost immediately went back up to 14.
About 3 hours later. I had my car sitting for about 2 hours this time, go inside to start it up so I can go to work. It again start up fine, but just sounds and feel weak and sort of had a chugging feeling/sound but only for about 5 seconds or so then pepped up just fine. It drives and sounds fine and the voltages are fine while the car is idling/driving. It starts up just fine to if I had the car running recently or if I turn it off and on.
2009 G8 GT Sound&Comfort
Drilled/slotted rotors w/ ceramic pads
Dyno tuned at New Era Performance in Socal