P0441 code, and can’t pump fuel into tank

[brillo_76]

Unfortunately there are too many items that could be the issue that causing fill up problems. In your situation you could very well be dealing with 1, no flow from the purge valve. And 2, the block fuel tank venting.



I would crawl under your rig and take things apart to visually make sure nothing is blocked or kinked. Looking good from the outside sometimes doesn't pertain to the inside. You may need to take it apart to do a visual inspection.



The VSV valves seem to be an easy basic solenoid, either off or on. I think those are 12v powered. You could power them off and on and check for flow.



I remember reading another member as they went through this, after an thorough and exhausted troubleshooting with the evap system, is turned out to be that rubber hose going from the filler neck to the tank. It got de-laminated inside the hose causing a 1/3 blockage.

I remember that...

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[brillo_76]

I know when I dropped my 2001 tank. I broke off a breather nipple.
So if you have to take the tank down be very slow and careful.

My evap canister was a rusty hot mess. So I just replaced it with a rust free one from CA. Sadly, I can't be much help as I replaced the filler neck and Hoses at the same time.

Plugged everything together, and it worked ..

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[Devbot]

I don't have a 02, so Im going on the document that gamefreak posted. Refer to that document for reference.

My search is from a 02 3.4L. I confirmed the numbers from two Toyota parts websites.

The VSV for CCV (vent valve), is part number 90910-12245. The plastic reciever color for the electical plug is colored grey. One of the vacuum hoses from the airbox to the VSV CCV.

The VSV for the Pressure Switching Valve, is part number 0910-12264. This is located on the charcoal canister. The plastic reciever color for the electrical plug should be colored off white.

The VSV for Evap (purge valve), is part number 25860-75230. This is located on the same bracket as the VSV for CCV. The plastic reciever color for the electrical plug should be colored black.
The hose from that valve should go to the metal tubing on top of the plenum and leads to the throttle body area.

The Vapor pressure sensor is part number is 89461-35010. It's located on top of the gas tank. I don't know if it's accessible from the access cover under the drivers side rear seat. You'll need to drop the tank to reach it.

Huh... well what the hell did I just buy then? :lol:

 

[diverscale]

Phattyduck "Charlie" explained in another post how the system on this 4runner is passive for air displacement during fill up.

So you either have to replace your filler neck (blockage in vent tube ) and clean the remainder of the vent hose attached to the tank before putting a new one,

Or your fuel gauge is off and your tank is full

 

[HiLife]

Huh... well what the hell did I just buy then? :lol:

What you got is the correct VSV for a 1996-01. What I listed is the correct VSV for a 02. Per application and the info op posted, those are the correct numbers based on multiple sites and a guy at local Toyota parts that Im friends with. Im aware some sites have conflicting info.

Toyota could've install either-or in the end during assembly. And only way to be really sure is by vin# which I don't have.

 

[DWilliam]

Phattyduck "Charlie" explained in another post how the system on this 4runner is passive for air displacement during fill up.

So you either have to replace your filler neck (blockage in vent tube ) and clean the remainder of the vent hose attached to the tank before putting a new one,

Or your fuel gauge is off and your tank is full

Are you saying it’s not the purge valve on the canister or the overflow check valve on the tank, but rather the vent hose on the filler neck?

 

[brillo_76]

Are you saying it’s not the purge valve on the canister or the overflow check valve on the tank, but rather the vent hose on the filler neck?

They are saying it's a possibility.

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[DWilliam]

Phattyduck "Charlie" explained in another post how the system on this 4runner is passive for air displacement during fill up.

So you either have to replace your filler neck (blockage in vent tube ) and clean the remainder of the vent hose attached to the tank before putting a new one,

Or your fuel gauge is off and your tank is full

I already have the VSV on the canister ready to install, and a new fill neck form rock auto is only 100 bucks. I might just do it anyway just to cover all the bases. If that doesn’t work I think it narrows it down to canister or overflow check valve.

How dofficult is a filler neck replacement on a 2002?

 

[brillo_76]

I already have the VSV on the canister ready to install, and a new fill neck form rock auto is only 100 bucks. I might just do it anyway just to cover all the bases. If that doesn’t work I think it narrows it down to canister or overflow check valve.



How dofficult is a filler neck replacement on a 2002?

Not too crazy. Just make sure you put all the hoses back where they belong. Sometimes, a few photos will assist you on a job like that. I did it in 2001. The 2000 and below have a lot fewer hoses to deal with.

Just take your time...



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[thezentree]

I’m the guy who fought this for a good two months last year, and it ended up being the rubber flex hose between the filler neck and the tank.

Pull that hose off and make sure it’s not blocked before you order a bunch of stuff. There are two hose clamps to get it out, and you might need a sturdy right angle pick to separate it from the bungs on either end.

For reference: Fuel tank not venting, even with vent hose disconnected. Need help!

 

[DWilliam]

I’m the guy who fought this for a good two months last year, and it ended up being the rubber flex hose between the filler neck and the tank.

Pull that hose off and make sure it’s not blocked before you order a bunch of stuff. There are two hose clamps to get it out, and you might need a sturdy right angle pick to separate it from the bungs on either end.

For reference: Fuel tank not venting, even with vent hose disconnected. Need help!

So the metal fuel fill neck goes to that black plastic hose, to the gas tank? Is it possible to remove/replace that black vent hose without dropping the tank?

 

[HiLife]

I remember reading another member as they went through this, after an thorough and exhausted troubleshooting with the evap system, is turned out to be that rubber hose going from the filler neck to the tank. It got de-laminated inside the hose causing a 1/3 blockage.

I remember that...

I’m the guy who fought this for a good two months last year, and it ended up being the rubber flex hose between the filler neck and the tank.

You are the guy! That was cool post.

 

[thezentree]

So the metal fuel fill neck goes to that black plastic hose, to the gas tank? Is it possible to remove/replace that black vent hose without dropping the tank?

Yeah it’s fairly easy to get to (at least on an 01), just two hose clamps to loosen. The only difficulty will be if the hose has glued itself to the metal bungs over time. If you can jam a pick between the hose and bung you can usually break it free. Then it just pops off

 

[thezentree]

You are the guy! That was cool post.

Haha it was such a pain in the ass.

 

[DWilliam]

My mechanic checked out the evap system today for me. Narrowed it down to a purge valve in the engine bay, part number 25860-75230. Not the one on the canister itself. Said it’s stuck in position and creating a vacuum. Part will be here later this week and I’ll see if that solves it, seems pretty simple to replace.

 

[DWilliam]

The guy in this video sprays an awful lot of electrical cleaner in the new part. Is this recommended or should I just pull and replace?

https://m.youtube.com/watch?v=gl_tKrg2LnA&pp=ygULNHJ1bm5lciB2c3Y%3D

 

[OpenYota]

I haven’t changed anything yet, I’m still in the planning and research phase before I dig into it. How was it changing your check valve and gasket? Pretty simple procedure?

It was fairly straightforward if you’ve wrenched before.
Make sure to look up some tutorials and watch TimmytheToolmans video on the fuel sending unit replacement as he drops the tank in that video to get an idea of what it takes.
To pull the check valve out you will need two small pry bars or large flathead screwdrivers on either side of the valve to leverage it out properly.
If you have anymore questions I will happily answer to the best of my availability!

 

[DWilliam]

UPDATE. Replaced the purge valve that my mechanic told me was the issue, the one under the hood. It wasn’t the issue and I’m still having the issue pumping gas. I suppose I’ll try a new mechanic next week and see if they have any solutions. I also had a hard start after I pumped gas, but started on the third try.

I suppose my order of checks are:
-check all hoses for malfunction or damage
-Fill Neck and vent
-purge valve on canister
-overflow check valve on tank
-canister

What is this box coming off the purge valve? Could that have any issue?

Imgur: The magic of the Internet

 

[gamefreakgc]

My mechanic checked out the evap system today for me. Narrowed it down to a purge valve in the engine bay, part number 25860-75230. Not the one on the canister itself. Said it’s stuck in position and creating a vacuum. Part will be here later this week and I’ll see if that solves it, seems pretty simple to replace.

That is probably the easiest and best solution! Not having to drop the tank or wrestle with the cannister under the vehicle is a win. Hoping that does the trick.

 

[DWilliam]

That is probably the easiest and best solution! Not having to drop the tank or wrestle with the cannister under the vehicle is a win. Hoping that does the trick.

Didn’t work. Read my post right before yours.