Transmission Overdrive Relay May Fail on Volvo 940

The transmission overdrive relay often fails, preventing the transmission from shifting into overdrive

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Average mileage: 151,006 (92,000–209,456)
5 model years affected: 1991, 1992, 1993, 1994, more1995
22 people reported this problem
8 people shared problem details
1994 Volvo 94092,000
Tranny fails to upshift into overdrive,at all.
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.
1992 Volvo 940187,000
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. Jim
had this rolem.replaced relay still no shift
2004 Volvo 940 GL-Top gasket
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.
1991 Volvo 940156,000
Intermittent won't shift into overdrive, not fixed yet...
1992 Volvo 940125,000
Transmission overdrive relay may fail
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