mudjeepin Posted April 20, 2021 Share Posted April 20, 2021 On my newly acquired F150 I noticed some driveway deleted emissions components. I’ve searched around quite a bit on the forum and internet and haven’t compiled all of the answers yet. Pertinent info is 5.0, EFI, 4-spd, no A/C It looks like the carbon canister/vapor canister has lost a vacuum connection and a dust/vent cap. It still has the line trailing back to the gas tank along the frame rail: From my emissions diagram similar to this one: It looks like I’m missing a vacuum line to somewhere. I believe this should connect to this vacuum line I found just under the intake manifold; there is a cap on a y-junction as seen here: From the other side it appears these vacuum lines split, one is yellow striped, one is black. I wasn’t able to trace where these went this morning: Looking at my vacuum tree: I think everything is connecting similar to this diagram (fig. 2) I found given my truck (no speed control, or ac): However, it looks like my vacuum reservoir has seen better days as evidenced by the tape. I did not trace the connections from here this morning: My question is, what do I need to get the system going again? I can see that I’ll need a new vapor canister, is the only way to find the missing dust/vent cap an auto parts yard? I’ll need a new vacuum coffee canister as well. Is the only vacuum line missing between the vapor canister and the y-junction mentioned earlier or are there bits and pieces between them? TIA! Link to comment Share on other sites More sharing options...
Gary Lewis Posted April 21, 2021 Share Posted April 21, 2021 My question is, what do I need to get the system going again? I can see that I’ll need a new vapor canister, is the only way to find the missing dust/vent cap an auto parts yard? I’ll need a new vacuum coffee canister as well. Is the only vacuum line missing between the vapor canister and the y-junction mentioned earlier or are there bits and pieces between them? Sorry for the delayed response, but you asked difficult questions. I think you will need to go to a salvage to get the vent cap. And the vacuum canister. And I do think the vacuum line just connects as you've found. Link to comment Share on other sites More sharing options...
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