I think my overdrive switch is bad. I can't turn my OD on or off. The OD off light goes on and off as it pleases. Also, OD will go on and off at speeds around 60 mph. Transmission changes smooth other than when it gears down at 60 mph. Is there a fuse or do I have to replace the switch? Or, could th...

First, my volvo doesn't want to start after it sets overnight. I usually have to hold the gas pedal down to 2,000 rpm's to get it to idle without going dead. Then, once I get it to idle, it takes awhile (3 minutes) to plane out. The only way I know how to explain it is that it revs up a 1,000 rpm's ...