So I picked my car up yesterday, and there are a few problems with it. Fuel gauge constantly reads full, do these cars have sending unit problems? Speedo doesnt work, but at one point I shut the car off, turned key on and the speedo jumped to 50 mph, bouched around a little bit, then went back to 0. Anyone have similiar issues or most like just a bad speedo cable? Check engine light comes on during highway drive, I know it could be anything, my 86 iroc back in the day did the same thing and never figured it out. Third brake light doesnt work, new bulb and still nothing, is that socket/housing assembly available aftermarket or?! Any info is deeply appreciated