Thread: What is that device before the lift pump?
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Old 01-29-2008, 02:24 AM
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Diesel Dan Diesel Dan is offline
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Location: Austin, TX
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Question What is that device before the lift pump?
In my '87 300D, there is a device inline right before the lift pump. It also has a couple of fuel hoses that go up to the air intake (??).

The reason I ask is that I have an air leak coming from this device. I have replaced all my fuel lines with translucent polyurethane, so I can see the air bubbles. It happens mainly when I hit the throttle. The only fuel lines I haven't changed out yet are those two that go up to the intake. Is it possible that the device itself could be leaking air? Or is it more like these lines? Or maybe something at the intake?

Thanks
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1987 Mercedes 300D ~200K (Greasecar & Biodiesel)
1993 Ford F-250 7.3 IDI diesel 165K (Biodiesel)
1996 Thomas/International Bus with DT466 engine
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