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620i XUV 4x4 whining buzzing noise

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Zonk175
Join Date: Jun 2011
Posts: 2 SoCen Tx
TractorPoint Premium Member -- 5 Tractors = Very Frequent Poster

2011-06-27          179198


Picked up a used 2008 John Deere Gator 620i XUV 4x4...............

There is a high pitched whining / buzzing noise constantly when the engine is running. Almost sounds like a weak seatbelt warning alarm.......

Anybody have a clue on a cause or solution?

THANKS! ~Z~


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620i XUV 4x4 whining buzzing noise

View my Photos
DAC246
Join Date: Oct 2011
Posts: 2 USA
TractorPoint Premium Member -- 5 Tractors = Very Frequent Poster

2011-10-09          180761


have the same problem it is coming from the fuel pump. Changed both the fuel pump and fuel filter and still have the same problem ....

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____________________________________________________________________________________
620i XUV 4x4 whining buzzing noise

View my Photos
brianm
Join Date: Oct 2012
Posts: 2 southeastern west virginia
TractorPoint Premium Member -- 5 Tractors = Very Frequent Poster

2012-10-17          185198


I have the same problem. Changed the fuel filter, then the fuel pre=filter just before the fuel pump and the fuel pump and the whine and poor performance (stalling and lack of power) remain. Disconnected the fuel line at the engine and the amount of fuel pumped thru is minimal at best. Tested the original pump and the output was normal for a good pump. Followed the fuel line to the tank and inspected the inlet screen, that was clear and the entire fuel line was clear.
Question: Does the on board electronic limit the voltage to the pump? ....

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