Last year, my 1996 850 experienced the dreaded flashing up-arrow. The code reader returned "Solenoid B Malfunction." It kicked on every few days and the car limped around in third gear until I reset the code, after which it worked fine for a couple of days. My mechanic and the local tranny show refused to touch it and the Volvo dealer declared it a K new transmission job. I had the dealer power flush the transmission and, much to his disappointment, the problem went away and has not occured since. So it was fine for 8 months. Now, I've started getting the flashing up arrow again. Only this time it doesn't switch into limp-home-in-third mode and it doesn't set any codes (at least none readable by my 0 Actron aftermarket reader). The flashing arrow self-clears after the car cools off and is restarted 3 or 5 times. Anyone know what's going on? Should I rush to the dealer next time it comes on and get them to read it before it self-clears? Are there tranny codes that they can see with VADIS that are invisible to my Actron reader? Does the no-code-self-clearing-flashing-arrow mean something specific? Is it overheating? Do I have a problem with the pump or radiator? Do I need a new radiator or aftermarket cooler? Maybe it's overheating and that burnt the fluid and led to the "Solenoid B malfunction" which was fixed with new fluid. Maybe it's fried the fluid again? Thanks, as always, -RL
