at around 62 mph the engine makes a high pitched sound.
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1991 Volvo 240 Question: High pitched sound at higher speeds
Answer #1patrick mannion from Greg Solow's Engine Room, November 16, 2009, 10:24Master
Check the fan belt tension. A loose fan belt for the alternator or power steering usually shows up when starting the engine or operating the steering but you could have a loose belt. A cracked heat shield for the exhaust may also cause a noise under certain engine load/temperature conditions.
Answer #2Visitor, December 30, 2010, 10:09
It sounds like your center support bearing on the drive shaft is bad. There is a two piece drive shaft and a bearing in the middle have that checked