1990 Volvo 780 Problem Reports

Most Reported 1990 Volvo 780 Problem Reports

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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.

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

Transmission oil leakage from the rear output seal is common, caused by a worn output shaft bushing. Our technicians tell us both parts should be replaced to correct this concern.

When braking, a loose feeling from the front end can be caused by worn strut rod bushings. Worn bushings will require replacement. After they are replaced the wheel alignment should be checked.

A faulty RPM sensor can cause the Check Engine Light to come on and cause a "No Start" condition.

Delayed and/or erratic shifting can be caused by the transmission kick-down cable sticking. Since the oil pan has to be removed to replace the cable, have the shop replace the transmission filter at the same time