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It's really no rhyme or reason when the fuel pump goes bad and since the price tag is so steep it is nothing that you just throw in there on a whim.
I have a high speed labscope with a milli amp clamp and with that, I can check the condition of the brushes/commutator of fuel pump, letting me know the status.
Below is a picture of a bad and good fuel pump while the car is running.
The bad pump produces those dips down to zero amp in the amperage ripple when the brushes passes over a bad spot on the commutator.
The good pump just show an even ripple.
Anders
SWEDECAR
Posts in this Thread:
- 120k service, hdm, Thu, 15 Dec 2005 15:07:19
- Re: 120k service, SWEDECAR
, Thu, 15 Dec 2005 17:26:33 - Re: 120k service, 8AA2YM, Thu, 15 Dec 2005 15:26:54
- Re: 120k service, Steve, Thu, 15 Dec 2005 16:34:48
- goal 200,000, hdm, Fri, 16 Dec 2005 05:29:57
- 99 9-5SE with 191,700 miles, Ian Glenday
, Thu, 15 Dec 2005 19:56:28 - Re: 120k service...twice (256K miles), Herb Hirsch
, Thu, 15 Dec 2005 18:31:00 - 108k and still going . . ., Greg Abbott
, Thu, 15 Dec 2005 17:17:38
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