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1987 - 1996 F150 & Larger F-Series Trucks 1987 - 1996 Ford F-150, F-250, F-350 and larger pickups - including the 1997 heavy-duty F250/F350+ trucks

Not sure…….

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Old Feb 9, 2024 | 10:18 AM
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Not sure…….
What is this?

Found this. Mechanic deleted some things
Can this be bypassed?
 
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Old Feb 9, 2024 | 10:37 AM
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The charcoal canister should not be deleted. The fuel vapor from your tank vents through the charcoal filter and prevents raw fuel vapor from venting under the hood. If you delete it there will be a strong gas smell. If you plug it your tank will swell when it gets hot because there is no vent anymore. Everytime you open your tank you'll get a hissing noise or it will spit at you because of the pressure built up.

You do want to make sure the rubber lines going to it and to the PCV aren't brittle or cracked.
 
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Old Feb 9, 2024 | 10:50 AM
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What is the coffee can looking thing? I thought that was the canister.
 
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Old Feb 9, 2024 | 11:10 AM
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Originally Posted by PSasquatch
What is the coffee can looking thing? I thought that was the canister.
The "coffee can" is your vacuum reservoir.
 
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Old Feb 9, 2024 | 11:10 AM
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The coffee can looking canister on the passenger side inner fender is the vacuum reservoir for the emissions system.


No relevance to the fuel vapor (EVAP) system.
 
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Old Feb 9, 2024 | 11:26 AM
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The EVAP cannister should have a line in from the tank vent and a line out to the PCV which IS hooked to the vacuum system.
 
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Old Feb 9, 2024 | 11:27 AM
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The EVAP cannister should have a line in from the tank vent and a line out to the PCV.
 
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Old Feb 9, 2024 | 01:38 PM
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On a 4.9L engine truck the CANP is plumbed to the throttlebody. There is no PCV connection like the 7.5L gas engine trucks.

 
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Old Feb 9, 2024 | 02:20 PM
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That is your connection to route it through your PCV system.
 
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