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Weird Hum in my 1990 740, Also a Rex Ragina question??? 700 1990

posted by  bythebluffs on  Tue Apr 12 08:02 CST 2005
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last visit: Sat Aug 2 12:32 CST 2014
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I have the same vehicle , and your fuel pump is mounted in the fuel tank.

A hum or vibrated may stem for the heat shied on the exhaust, just -off idle or fast idle. I would look at exhaust system first.Remove or repair loose items.

If it is indeed rotational, use a length of heater hose or a piece of broom handle, hold it to your ear and move the other end around the rotating engine, resting against valve covers,alternator, pumps, P/S ,water etc head, block , transmission etc. Careful of the rotating fan
--
90-740GL , 92-945Turbo






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New Weird Hum in my 1990 740, Also a Rex Ragina question??? [700][1990]
posted by  Chuck Jaxel subscriber  on Tue Apr 12 06:03 CST 2005 >


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