Everything started working normally when I cleaned the corrosion off of the positive battery terminal.

I have a 97 Volvo 850. The low coolant light comes on. When I check the resevior, it looks empty, but when I take off the cap, the resevior fills from the tube running from the thermostat. Once the resevior is full, it slowly empties back into the system. I keep adding coolant and can't find any lea...

I have an intermitent problem. When I turn on the car, the gearshift won't unlock. I use the override to release the gearshift and get the car in gear. At the same time, the turn signals and speedometer are inoperative. The rest of the time, if the gearshift unlocks automatically, the speedometer an...