The transmission overdrive relay often fails, preventing the transmission from shifting into overdriveGoogle+
Car Problem Reports
Volvo 940 Transmission Overdrive Relay May Fail
Volvo 940 Problem
Average Mileage: 151,257 mi (92,000 mi - 209,456 mi)
Visitor, 1992 Volvo 940, 187,000 mi
92 Volvo 940 GL
Transmission won't shift up into high (overdrive?)If I continue driving, at 14 miles it will finally shift. Last summer when it was hot it would begin shifting up right away.
Visitor, 1993 Volvo 940
Same issue with the transmission overdrive. Bought the car 2 years ago from a private party, and it starting acting up about 3 months after I purchased vehicle.
when accelerating, cannot get the car to go over 40mph,and the transmission will not shift. There is an arrow light on, on the dashboard, when turning turbo on, cannot tell if the turbo engine is on, except for the fact it will go to 45mph.
Visitor, 1991 Volvo 940, 156,000 mi
Intermittent won't shift into overdrive, not fixed yet...
Visitor, 1994 Volvo 940, 92,000 mi
Tranny fails to upshift into overdrive,at all.
had this rolem.replaced relay still no shift
Visitor, 1992 Volvo 940, 125,000 mi
Transmission overdrive relay may fail