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Buell Forum » Old School Buell » Archive through September 08, 2008 » Is my fuel pump about to fail? « Previous Next »

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Xodot
Posted on Wednesday, August 27, 2008 - 08:18 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)
The usual whining the fuel pump on my S3 makes after turning the ignition on is getting louder. Is that a sure sign of impending failure?
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Numb_nutz
Posted on Wednesday, August 27, 2008 - 09:04 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)
I HAVE SEEN THAT HAPPEN IN THE AUTOMOTIVE WORLD. OLDER FORD'S DID THAT A LOT. IF IT BOTHER'S YOU I WOULD TAKE IT TO SHOP HAVE THEM PUT A LOW AMPS PROBE ON THE PUMP POWER WIRE AND GET A LOOK AT THE PUMPS'S WAVE FORM. THAT WILL TELL FOR SURE IF'S IT GOING OR JUST GETTING LOUD.
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5liter
Posted on Wednesday, August 27, 2008 - 10:17 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)
Have you changed your fuel filter lately?
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Xodot
Posted on Wednesday, August 27, 2008 - 10:41 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)
Fuel filter has about 8k miles or less on it.... should be at about 1/3 life I think.

Amp draw look like a good idea. What amperage would a healthy pump draw?
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Newbuellertoo
Posted on Thursday, August 28, 2008 - 09:42 am:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)
Bob, When the fuel level is very low in my tank, the noise is frightening. It sounds like it is going to self destruct. Having said that, the sound does vary from day to day and so far no problems.
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Oldog
Posted on Saturday, August 30, 2008 - 01:14 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)
Xodot the spec is about 4 amps you can check this with most X milliammeters. X VOM volt ohm milliameters ( IF they have a 5 to 10 amp range )

(Message edited by oldog on August 30, 2008)
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