When I drive around with less then a 1/4 tank of gas and it's warm out, sometimes my engine cuts out for 3-4 seconds. The hotter it is outside, the more it happens. This has been going on a couple years. I took it to an indy mechanic 2 years ago and they replaced a purge valve. The problem has never gone away and it happened again this weekend. Any suggestions to what the problem may be. It sounds like pressure is building up in the gas tank and stopping flow to the fuel pump. I have a 2001 996 c2.

Thanks a lot.

 

Could be your fuel pump or one of your sensors I believe C15 or something like that. Check in Rennlist.com there is a forum there on the 1st page about something similar to your problem. GL