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1990 Ford F-150

Question: fuel ?

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purcell09, Fort Thompson, SD, August 28, 2009, 13:12

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fuel pumps buzz way to long, and will not start, until pumps stop! done the filter, changed pumps, done the dual function reseroir, than done bypass on the reseroir! (problem, the year 1988.)

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• Answer #1

  munkyrench September 23, 2009, 11:51
  

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  Hi,
  did you find out why your F150 wasn't starting? Was it related to the buzzing fuel pumps?
  thx
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  Visitor, June 23, 2010, 07:17

  I never had a answer about the pumps buzzing to long before star up
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  bradgagliardi, September 13, 2010, 00:00
  

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  try checking fuel pressure regulator and fuel pressure at the pumps
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• Answer #2

  my shop August 29, 2010, 13:58
  

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  I have a 1993 thats doing the same thing Iv spent a lot of money trying to fix it still doing it If you find out please let me know [Iv took it to shops they say I just dont know]
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  bradgagliardi, September 13, 2010, 00:01
  

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  try checking fuel pressure regulator and fuel pressure at the pumps
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  my shop, September 13, 2010, 19:10
  

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  fuel pressure is 50 Iv changed the regulator Im showing a 213 code which means loss of spark Im ckecking that out now
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  Visitor, September 08, 2010, 16:44

  got a 92 with same problem what did u do
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  Visitor, September 08, 2010, 17:08

  Im taking it to a different shop Friday I will let you know
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• Answer #4

  Visitor, April 18, 2011, 09:11

  The ECU in the driver kick panel is the problem. If you take it out and open it up you'll see a blue capacitor has gone bad and may be hanging by only 1 leg. It is rated at 47 mfd and 16V. You can replace it with one from Radio Shack as we did yesterday. Now pump runs about 5 seconds and the truck starts right up. The computer will not give a SPOUT signal(spark out) until the pump turns off.
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