P0442 Error Code
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5th Wheeling
Joined: Mar 2004
Posts: 40
Likes: 3
From: Pacific Northwest
P0442 Error Code
2004 Ranger XLT with 4.0L V6 and 5-Speed manual transmission. Recently my "Check Engine" light came on. I took the vehicle to AutoZone to have the EEC-V system read and found the error code P0442, EVAP small leak detected. I first checked to see if the gas cap wan not installed properly, but it appears to have a snug fit. The next thing to check is "Canister Purge Valve", but I'm not sure what I'm looking for. Does anyone have a photo of the "Canister Purge Valve" for the 4.0L V6 engine, or at least the location within the engine compartment?
Thanks!
Thanks!
5th Wheeling
Joined: Feb 2021
Posts: 31
Likes: 18
That electrical connector will be facing aft.
Fleet Mechanic
Joined: Mar 2004
Posts: 1,529
Likes: 35
From: Kansas
If you already haven't, I would suggest that you replace your gas cap. Yes, it's possible that it wasn't on tight and snugging it up might fix your problem, but a replacement Motorcraft (no substitutes, unless it is NLA) gas cap is one of the first things to replace if there is a small emission leak detected. Next, I would try a smoke machine. This will help find your small vacuum leak. A few people have successfully made some homemade units, but any competent indy auto repair shop should have one. Avoid "just throwing major parts" at it.
5th Wheeling
Joined: Feb 2021
Posts: 31
Likes: 18
That's because you said you had a 2004 Ranger. 
That's what it looks like on a 2004.
If you had said that you have a 2002 Ranger (which I deduce is the case, given your other thread on this forum), I would have posted this picture instead (purge valve is #7):
"Details, details", right?
Good luck in the diagnosis.
That's what it looks like on a 2004.If you had said that you have a 2002 Ranger (which I deduce is the case, given your other thread on this forum), I would have posted this picture instead (purge valve is #7):
"Details, details", right?
Good luck in the diagnosis.
Last edited by Creaky; Dec 28, 2022 at 09:57 AM.
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5th Wheeling
Joined: Mar 2004
Posts: 40
Likes: 3
From: Pacific Northwest
Sorry! 
I'm not sure why I typed 2004 instead of 2002. It may have been rather late when I created the original post, and I may have been half asleep. 
But thank you for the updated information, it is very helpful. 
I'm not sure why I typed 2004 instead of 2002. It may have been rather late when I created the original post, and I may have been half asleep. But thank you for the updated information, it is very helpful.
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