2002 Grand Am 4 cyl, stalling problems
Looking for suggestions. My sister-in-law has a 2002 Grand Am 4cyl 2.2 MFI DOHC, with 63,000 miles on it. She bought it new and keeps it in pristine condition! Any noise, fart or fiddle it makes, she brings it to the dealer and has fixed right away, including all regularly scheduled preventive maintenance.
Lately she has been experiencing an issue of the car stalling out. Sometimes it'* right away in the morning when cold, sometimes it'* after driving for awhile and sometimes it just stops at stop signs or red lights. It always starts right back up, at least by the 3rd attempt. Before it starts, it cranks over very strongly as if there is no fuel getting to the engine, then it just kicks in as though nothing was ever wrong. No sputtering at all. The dealer has told her it is not throwing any codes and they could not duplicate the problem at the shop, despite having it 3 days. She took it to a local mechanic as well and the same thing.
Sounds to me like an electrical issue, such as the fuel pump relay or maybe the fuel tank pressure sensor, but she is low on funds now and does not want to play the parts game of buying more and more parts, only not fixing the issue. Obviously she has to try something, so where do you folks recommend starting? Thank you in advance for any info. It is much appreciated!