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Old 07-02-2013, 09:12 AM
enduroguy enduroguy is offline
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EVAP vent solenoid

Hello everyone, I have a 99 F250 v10 that I haven't owned for very long. My check engine light is on and I have pulled code p455-EVAP leak detected. While following the hose system looking for potential problems I found that the EVAP vent solenoid (located on the back of the EVAP canister) has what looks to be a very short piece of hose on it that doesn't go anywhere. I am wondering if this is supposed to be connected to something, or if there is supposed to be some sort of small filter on it. I haven't been able to find any useful diagrams or pictures of this.
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Old 07-02-2013, 11:20 AM
projectSHO89 projectSHO89 is offline
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That's the inlet hose to the vent solenoid. It's supposed to be open.
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Old 07-02-2013, 12:06 PM
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Wolfboro Wolfboro is offline
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I have a repair manual covering 2000 Superduty F-250-550/Excursion/ F-53 Motorhome Chassis .

Here is what it says for error code p0455 at Evaporative Emission Diagnostics :

CHECK FOR DIAGNOSTIC TROUBLE CODE P0455 OR P1443


  • Is DTC P0455 present?
Click the image to open in full size.Yes GO to B2.

B2 VISUALLY CHECK FOR GROSS EVAP SYSTEM LEAKS
Click the image to open in full size.Check for the presence of a fuel filler cap. Do not tighten or check for correct installation at this time.

Click the image to open in full size.Check the input port vacuum and EVAP return tube are connected to the EVAP canister purge valve.

Click the image to open in full size.Check that the canister vent solenoid is correctly attached to the EVAP canister.

Click the image to open in full size.Check for disconnected or cracked fuel vapor hoses or tubes between the intake manifold and following components:
  • EVAP canister purge valve
  • EVAP canister
  • Fuel vapor vent valve assembly
  • Fuel vapor control valve tube assembly
Click the image to open in full size.Check for damaged fuel tank or fuel filler pipe.

  • Is a concern with a hose, tube, connection or valve visually evident?
Click the image to open in full size.Yes REPAIR or INSTALL new EVAP components as necessary.
............................

(This is a short version just to give you some problem areas to check).
Good luck,




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Old 07-03-2013, 07:24 AM
enduroguy enduroguy is offline
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Thanks, hopefully I'll be able to figure his out.
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Old 07-03-2013, 07:24 AM
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