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Loose vacuum hoses

Tiny
WAYNEMERTZ
  • MEMBER
  • 2001 FORD EXPEDITION
  • 5.4L
  • V8
  • 4WD
  • AUTOMATIC
  • 250,000 MILES
I have used a smoke machine to locate a vacuum leak and discovered a loose vacuum line. It is back by the fire wall and I can not see or feel where it plugs in. Hope you can help me before I have to start tearing everything apart.

Wayne
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Saturday, January 26th, 2019 AT 5:43 AM

13 Replies

Tiny
ASEMASTER6371
  • MECHANIC
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Hello again.

With the air filter assembly installed, is there a port for the hose to attach?

That is what it looks like it belongs.

Roy
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Saturday, January 26th, 2019 AT 6:06 AM
Tiny
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No, there nothing on the air cleaner assembly.
I managed to get a camera close enough to take a video that might be showing a port.
I took a desktop photo of it.
Still can not get my hands on it!
May have to take off the throttle body, etc.

Wayne
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Saturday, January 26th, 2019 AT 6:26 AM
Tiny
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What about the open port on the throttle body? That hose is the same size?

Roy
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Saturday, January 26th, 2019 AT 6:29 AM
Tiny
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No, that is huge, about ten times the size needed.
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Saturday, January 26th, 2019 AT 6:32 AM
Tiny
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The hose you pictured, at least that I saw, looked to be the same size as the throttle body fitting.

Roy
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Saturday, January 26th, 2019 AT 6:34 AM
Tiny
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Let's try it from this point. From the original pictures I sent, with the two vacuum tubes in the harness (routing around the back of the engine) (one white and the other red) (one going to the fuel rail maybe a regulator ) Do you have any diagram where these two vacuum tubes are supposed to go? Something color coded? Right now the white one is connected to the fuel rail.
Wayne
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Saturday, January 26th, 2019 AT 7:09 AM
Tiny
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Hello my name is Dave.

The red line I saw in your picture goes to the fuel pressure regulator on the fuel rail.
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Tuesday, January 29th, 2019 AT 10:55 AM
Tiny
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Thanks Dave, I already had figured out that the white line when to the EVAP and the red line went to the regulator. But thank you very much for the reply.
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Tuesday, January 29th, 2019 AT 11:06 AM
Tiny
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Dave has much better eyes than me. I did not even see that hose let alone the color.

Roy
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Tuesday, January 29th, 2019 AT 2:29 PM
Tiny
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Think about my poor memory at 73. Pulled the plugs off and a few days later forgot how they re-plugged in!
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Tuesday, January 29th, 2019 AT 5:05 PM
Tiny
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Was that the only hose or is there others?

Roy
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Tuesday, January 29th, 2019 AT 5:08 PM
Tiny
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That was it. I had the white tube connected where the red one should have gone, and the white one went to the EVAP on the firewall. Thanks Roy and have a good night.
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Tuesday, January 29th, 2019 AT 8:43 PM
Tiny
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You are welcome.

We are always glad to help.

Roy
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Wednesday, January 30th, 2019 AT 3:10 AM

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