1991 Volvo 940 Repair and Maintenance
A guide to problems, costs, maintenance and repair for your 1991 Volvo 940
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1991 Volvo 940 ProblemsTransmission Overdrive Relay May Fail
The transmission overdrive relay often fails, preventing the transmission from shifting into overdrive
The fuel pump relay may fail resulting in a "no start" condition, the engine will crank over but will not start and run. Checking for proper fuel pressure would be the first step in diagnosing this concern.
Engine stalling/stumbling problems can be caused by a failing mass air flow sensor.
1991 Volvo 940 QuestionsMy check engine light is on and white smoke is coming from the tailpipe car cuts (1 answer)
My car cuts off while I'm driving it does this hesitate while I'm driving and cuts off. oi just had the oil changed filture. Now the car has wait smoke coming from the tailpipe. I also had the fule pump changed. I dont know what's wrong with my car I just purchased this vehicle in No...
Car won't start at all. I've replace the 2 fuel pumps, fuel pump relay, fuel filter, and crankshaft position sensor and still can't get it to crank; does anyone know what else could be wrong with the car?
Injectors & throttle body have been cleaned. Plugs & plug wires have been changed. Gas & Air filters have been changed. Water pump, Timing belt have been changed. Turbo has been serviced.
Car starts and idles well once cold. However as engine gets warm and begins to be revved at 2000...