I have,just bought a second hand 1996 850 volvo estate, only 36000 miles, it is idlying at just over 1000 rpm, what should it be and is it a job I can do
Depends on the model - idle speed on most 850s is between 850-950 rpm. On most models this is controlled by the ECU so should not change too much. I take it from your 2nd message that this is an automatic - if so you are experiencing "creep" which is normal in an automatic