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Xoutpost server transfer and maintenance is occurring.... |
Xoutpost is currently undergoing a planned server migration.... stay tuned for new developments.... sincerely, the management |
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#21
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2011 E70 • N55 (me) 2012 E70 • N63 (wife) |
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#22
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Yes, forget about the multimeter for now and get yourself a test light.
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1988 325is (purchased new) sold 2004 X5 3.0 2005 X3 2.5 2008 X5 3.0 (new to me) |
#23
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Test light will not help testing fort short of hot to ground. The fuse is blown so there will be no power for test light
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2011 E70 • N55 (me) 2012 E70 • N63 (wife) |
#24
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You replace the old fuel pump with a new fuel pump and now it is blowing fuse 47? Did the old fuel pump blow fuse 47 or don't you know? Could be a BNFP (Bad New Fuel Pump). Did you bench test the old fuel pump to see if it worked? Put an amp clamp on the battery but don't start the engine and turn it to the run position and see how much amps the fuel pump is drawing or the short is drawing. The short will draw more amps than the fuse in order to blow it.
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2006 Infiniti G35 2001 BMW 3.0I E53 X5 Build date 08/2000 SOLD Lotus Europa 1970 Destroyed by fire Lotus Europa 1970 S2 Renault Powered Lotus Type 52 1970 Twincam Webers Powered PORSCHE 911 Targa 1982 The Garage Queen Audi Avant donated to Kars for Kids BMW 525IT Sold Audi 4000CS Quattro Sold Jensen Healey Lotus Powered Sold Opel 1900 Sold Triumph Spitfire 1971 Sold Triumph Spitfire 1968 Sold Plymouth "Cuda" 340 Six pack SOLD |
#25
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Old fuel pump was dead.
However, still blowing fuse 47. Does anyone know where ground X492 is--it is the ground for the fuel pump, among other things.
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2001 E53 3.0 5pd |
#26
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Quote:
A poor ground won't casue a fuse to blow, however. The wiring on the positive side is of more interest. Might need to trace that out, looking for chaffing or shorts to ground. The fuel pump wiring from the relay in the eBox runs from under the bonnet (hood) all the way to the fuel pump under the back seat, so lots of locations that could be an issue...
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Wayne 2005 BMW X5 3.0d (b 02/05) 2001 BMW F650GS Dakar (b 06/01) |
#27
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Put a test light or buzzer across the fuse terminals and watch/listen as you follow and wiggle the suspect wiring.
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1988 325is (purchased new) sold 2004 X5 3.0 2005 X3 2.5 2008 X5 3.0 (new to me) |
#28
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Ok, just for funzies, I replaced the fuel filter, which has been in there for potentially tens of thousands of miles and an even longer time, fermenting old gasoline into muck.
The gas is a mix of pretty old with stabilizer and fresh premium. I put a new fuse in 47, put the connector back on the pump and put the key to start. Miracle of miracles, the new fuel pump starts humming. I did this a few times to see if it would pop the 47 fuse again. Nope. Always primes the pump. So I pressed my luck and turned it over--and it worked. Thanks for the ideas, everyone.
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2001 E53 3.0 5pd |
#29
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Quote:
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2006 Infiniti G35 2001 BMW 3.0I E53 X5 Build date 08/2000 SOLD Lotus Europa 1970 Destroyed by fire Lotus Europa 1970 S2 Renault Powered Lotus Type 52 1970 Twincam Webers Powered PORSCHE 911 Targa 1982 The Garage Queen Audi Avant donated to Kars for Kids BMW 525IT Sold Audi 4000CS Quattro Sold Jensen Healey Lotus Powered Sold Opel 1900 Sold Triumph Spitfire 1971 Sold Triumph Spitfire 1968 Sold Plymouth "Cuda" 340 Six pack SOLD Last edited by upallnight; 05-23-2021 at 09:53 AM. |
#30
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X5 at least has 50A fuse in the aux fan ckt.
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2011 E70 • N55 (me) 2012 E70 • N63 (wife) |
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