I bought a 2010 Chevy Equinox LT, 2.4L, 4cyl, FWD, in March that had just had a rebuild installed by the dealer due to a recall. (I believe it had to do with the oil rings?) Anyway...

1) A few months ago the rear passenger turn signal stopped working, triggering a rapid signal indicator on the dash, followed a couple weeks later by the front driver signal not working. I bought new bulbs, but that wasn't the problem. Then I found a blown BCM fuse and replaced. It fixed the front driver signal but I couldn't figure out how to fix the rear passenger one. A couple weeks later the rear passenger one just started working again. Weird. Now they're both not working again. Turns out my hazards don't work properly either. I checked the fuses again and can't find any that are blown.

2) About three weeks after purchase the check engine light came on for about 24 hours then went off again. Then again about three weeks later., and two weeks after that. It comes on periodically, sometimes only for a few hours, then off again. I took it to the dealer in case it had to do with their install and they said it didn't. They came back saying it needed: a) replace faulty purge valve, b) clean mass air flow sensor, c) clean injectors. I just don't understand... If these are problems why is the light off most of the time and only comes on once in a while?

3) Since purchase, the rear hatch is touchy; sometimes it opens and sometimes it doesn't. I started by replacing the release button, then the actual mechanism inside the hatch; neither of which fixed it.

I don't know how else to proceed with any of these. Please help!!