i recently bought a 91 940 se for 550 off craigslist. i did plugs wires and oil change right away, still need to do the trans fluids and brakes. there is a wierd rattling/vibration which happens when idling still with brakes on or in park and sometimes on the highway. the ebrak is disconnected, i'm wondering if that is it. once it was acccidently in the lower gear instead of drive and the noise was similar. i'm wondering if it is a noise from something in the the trans or driveshaft since it sounded similar. the previous owner had overdrive problems and took it to a local guy who put an overide on it. the gas pedal is really really hard, it's my first volvo so i'm not sure if this is normal or not. the gas mileage sucks, but not much can be done about that. i saw some chips that are supposed to overide the fuel mix to air ratio but i haven't seen enough evidence that it is worth the money for 2 more miles a gallon. my heated seats don't work but the lights come on. i read somewhere about soder joints being a fix for this, but wondering if that is the case if the lights still come on? now my big question here is how do i get the cover off the shifter or get the shifter out of the way? i would like to put the original stereo back in but i can't get any of that stuff apart, the shifter is so close. i have no lights on the shifter column either, it seems the light is under it and on the wrong side, i can see it through the cracks on the right. i think mayhaps whomever tore it apart to put in an aftermarket head unit didn't care to put it back right. when i called volvo dealership about the light they said there was some plug and recepticle thing that would cost 30 bucks to be ordered, but i can see a lot of wiring and light in the wrong spots. any tips on this vehicle would be appreciated. i'm hoping it will last me through the rest of college.