PO442 98 Expedition
- Thread starter Fitz98
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Nope, need a smoke machine to find where the leak is. Barring that you can put a new gas cap on it and see if that fixes it. *shrug*
i doubt its in any of the hoses for the evap.
Its most likely the fuel cap, or the fuel fill tube rusting through.......or your gas tank is rusting through, usually starts on the top.
but yes a smoke machine works best, unfortunately they are expensive and not all shops have them.
Its most likely the fuel cap, or the fuel fill tube rusting through.......or your gas tank is rusting through, usually starts on the top.
but yes a smoke machine works best, unfortunately they are expensive and not all shops have them.
This hose from intake does not look in very good shape and collapses under vacuum. Does the fact that it collapses under vacuum help in troubleshooting? Wife does not tighten gas cap past clicks, but I tightened it and check engine light still on. Tried to loosen cap while running, no way to loosen it while running.
Wondering if the fact that the hose is collapsing affects anything in the system, but thinking that since it collapses shows a good vacuum.
Hose decollapses when shutting off engine.
Wondering if the fact that the hose is collapsing affects anything in the system, but thinking that since it collapses shows a good vacuum.
Hose decollapses when shutting off engine.
OVERKILL
$100 Site Donor 2021
Well yeah, if that hose is collapsed you've likely found your problem. Replace the hose, clear the codes, see if it is resolved.
F75Z-9D289-AA Its called a "fuel vapor tube" and the description is "tube from intake to vapor management valve on firewall"
I had that code once on my 03 f-150 it was the rubber boot on back of intake going to the crankcase ventilation.FWIW
Originally Posted by BigGee
I had that code once on my 03 f-150 it was the rubber boot on back of intake going to the crankcase ventilation.FWIW
Those are common also. For the OP's Expedition there are different ones depending on if it is heated PCV or not and if it has a 5/8" or a 3/4" port on the intake.
I had that code once on my 03 f-150 it was the rubber boot on back of intake going to the crankcase ventilation.FWIW
Those are common also. For the OP's Expedition there are different ones depending on if it is heated PCV or not and if it has a 5/8" or a 3/4" port on the intake.
Never haf that issue with that hose yet. Hope it is easily fixed with that and hope isnt tank issues
That hose is totally shot, as others have said replace that and more than likely your problem will be fixed.
Originally Posted by Fitz98
Will the code clear itself when the issues is corrected? I don't have the tool to clear codes.
After a certain amount of drive cycles where all the monitors run the light can go out on its own. Well in theory it should.
Will the code clear itself when the issues is corrected? I don't have the tool to clear codes.
After a certain amount of drive cycles where all the monitors run the light can go out on its own. Well in theory it should.
OVERKILL
$100 Site Donor 2021
Originally Posted by Fitz98
Will the code clear itself when the issues is corrected? I don't have the tool to clear codes.
You can unhook the battery for a bit and that should clear it.
Will the code clear itself when the issues is corrected? I don't have the tool to clear codes.
You can unhook the battery for a bit and that should clear it.
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