P0442 SEL code on 2001 F150
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Trailering
Joined: Apr 2019
Posts: 20
Likes: 1
From: Southeast Texas
A note;
The system will go into a full diagnostic if a code clear is done. This full diagnostic is what takes the longer time.
When filling tank with gas, the system knows the cap has been taking off, so treats it differently so the fuel gauge reading is updated 'only' and does not go into diagnostics again.
I does however keep track of how long the tank goes without proper pressure sensor feedback to detect a loose/leaking/missing cap.
A lot goes on most are not aware of.
Good luck.
The system will go into a full diagnostic if a code clear is done. This full diagnostic is what takes the longer time.
When filling tank with gas, the system knows the cap has been taking off, so treats it differently so the fuel gauge reading is updated 'only' and does not go into diagnostics again.
I does however keep track of how long the tank goes without proper pressure sensor feedback to detect a loose/leaking/missing cap.
A lot goes on most are not aware of.
Good luck.
Also, I did not fill the tank to the max, but it was a little over 3/4 full
So, I can still expect "other" diagnostics to be running in the background, so to speak, for the next several days/weeks/more?
I know they won't affect the performance of the truck, just curious
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Trailering
Joined: Apr 2019
Posts: 20
Likes: 1
From: Southeast Texas
Well, the dang SEL light is back on again....not sure what to do next
May be just my imagination, with what's going on lately, but it seems when I get home and park in the garage, I smell a faint hint of gasoline, towards the back of the truck
The new Motorcraft cap is well seated
May be just my imagination, with what's going on lately, but it seems when I get home and park in the garage, I smell a faint hint of gasoline, towards the back of the truck
The new Motorcraft cap is well seated
Hotshot
Joined: Jan 2004
Posts: 19,762
Likes: 1,079
From: St Louis
First thing to do is to read the codes to make sure you're still on the same fault and not something different.
If you have a fuel smell, then you probably do have a leak in the system. A smoke test would likely reveal it.
If you have a fuel smell, then you probably do have a leak in the system. A smoke test would likely reveal it.
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