Recently bought an NA '93 940 from used car dealer, knowing that it wouldn't go into PARK. Parking involves shifting to N and appplying the Ebrake. Is this characteristic of the defective shift microswitch or solenoid which I have read about, or some other issue?

Tried pushing the shift override button behind the shifter without any result. I understand that this will allow the shifter to move if it is stuck in P, but evidently won't work if locked out of P. True?

Second issue is that while driving it home some 75 highway miles, the tranny didn't want to shift into fourth gear. By vigorously pushing on the shiftlock override (thumb buster) at about 3000rpm it would shift to fourth, then run 65mph @2500rpm. If slowed to 50mph, it would downshift again, requiring another hard thumb press. Don't know if this is proper use of the devilish override button, but made it home.

This two-owner car looks sharp both in and out and the odometer only shows 106K, although there are no maintenance records.

After tinkering with plugs and wires it starts and idles well, so I want to keep the car.

This is my fifth Volvo so I know a little about them, but my first 940 w/tranny issues.

Any suggestions or insights?

Thanks for your help

Ed