Car is a 91 subaru legacy 2wd
Several months ago I had a problem where my fuel pump went bad and I had it replaced, so I have some recollection of what that sounds like when it just doesn't turn over (if thats the proper term). Cranked but didn't start. That was a separate and resolved issue but just to say I at least know what that sounds like.
2 days ago I had a problem where I was trying to start it (after driving for about 10 minutes) and it would sound like it started but then stopped and then had a sound that was similar to when the fuel pump died but higher pitched, less chugging for the best way to describe it. As far as I remember in terms of sound it was quite a bit different (from when the fuel pump was dead) though, it didn't go into the repeating sound immediately and sounded like it started properly before going into a higher pitched sounding cranking. Was somewhat low on gas (at about 1/10th full I was about to go to the gas station) so I refueled it using a gascan to see if that would fix it. Still didn't start up properly even an hour after and had it towed. Today I went to actually record the sound, and it started normally. Any idea what would sometimes stop it from starting and sometimes not? I hadn't driven it very much so it wasn't hot and it sat for about an hour and a half and still wouldn't start. More fuel didn't help either. And like I said it sat for about 36 hours then started up seemingly with no issues though I didn't trust driving it anywhere.
Any tips/ideas or things I can test? Will try recording audio if it happens again.
Before posting just gave it another try, 2 hours after it was working before. Seemed to start up normally and I put the gas down a bit and everything seemed fine. Only change would have been there was more fuel added (even if this didn't help it at first) and it sat for 36 hours.