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***Need to know how to bleed fuel injection system*** 200

posted by  rstarkie on  Fri Jan 9 14:02 CST 2004
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last visit: Fri Oct 24 10:14 CST 2014
[RELATED]

If the intank pump is not working you may be wasting your time (and burning up your mainpump). If the system is dry the mainpump will not run long before ceasing to operate. They can not pump air. If there is fuel in the tank you can run the intank pump to get the fuel to the main pump. In order to do this you will have to open the line somewhere before the fuel pressure regulator to allow the air to escape- I think you will find that the fuel pressure regulator restricts flow until pressure is built up and trying to pump air will not build pressure. The easiest place to open the line is at the back of the fuel rail.

You can feed 12v directly to the intank pump by the leads in the trunk- sorry off hand I do not know the wire colors to tell you to feed the 12v. Once the intank pump has pushed fuel to the main pump (and air out of the lines ahead of the fuel) you can then use the jumper from fuse 4 to fuse 6 to run the pumps together to purge the air from the lines. Once you have fuel at the rail fitting you can tighten it and proceed in your starting efforts.

Please be careful of the raw fuel that will (hopefully) be exiting the loose fuelrail fitting after running the pumps to purge the air. Have all the raw fuel cleaned up before continuing your efforts. Good luck.

Randy





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