1990 Volvo 740 Repair and Maintenance
A guide to problems, costs, maintenance and repair for your 1990 Volvo 740
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1990 Volvo 740 Problems
Engine stalling/stumbling problems can be caused by a failing mass airflow sensor.
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.
1990 Volvo 740 Questions
Replaced upper radiator coolant hose before I did this. Actual year is 1988. Had been sitting for awhile (1.5 years) before I started working on it. Fuel pumps work fine. Fuel lines look in good condition, no leaking, no rusting. Coolant temp sensor has not been replaced before, as well as fuel p...
needs to cool down to start
could this be vac leaks or is it map,o2,sensor related? fuel pressure? also will occasionally buck while driving at interstate spd. there is no check engine light on also the speedo has become erratic and the anti lock light is coming on after hitting a bump and now stays on longer/more often