1991 Volvo 740 Repair and Maintenance
A guide to problems, costs, maintenance and repair for your 1991 Volvo 740
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1991 Volvo 740 ProblemsNo Start Due to Failed Engine RPM Sensor"No start" Due to Failed Fuel Pump Relay
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 airflow sensor.
1991 Volvo 740 QuestionsI need to see the vacuum diagram (1 answer)
When entering the highway, the 91 volvo 740 wagon has a hard time gaining speed.
Over night, my 740 91volvo would not crank, I turn the key and it is turning over but not cranking, I got a jump let it charge a bit then it crunk. I do not know if I will have the same problem in the morning.