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EVAP purge valve code PO441

A mid-size luxury crossover SUV, the Volvo XC90 made its debut in 2002 at the Detroit Motor Show. Recognized for its safety, practicality, and comfort, the XC90 is a popular vehicle around the world. The XC90 proved to be very popular, and very good for Volvo's sales numbers, since its introduction in model year 2003 (North America).
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ylwgto
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EVAP purge valve code PO441

Post by ylwgto »

I've been ignoring and resetting codes PO441, PO442 and PO440 for some time now.

They seem to stay off until hard acceleration at on ramps or when passing. Most recently got the check engine with PO441, PO442 again.

Car seems to run fine, but recently noticed my combined city/hwy mileage (mainly city) has dropped off to 15.6, which is terrible (I think my thermostat is also bad and part is on order).

So, I've read up and it seems the codes indicate a bad gas cap (not the case, the seal looks good) or a bad EVAP purge valve. Should I order this part and replace while I'm working under the manifold for the thermostat repair?

Could the EVAP leak be from elsewhere, like the j-hose, or something else?
2009 XC90 3.2 R-Design 135K

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RickHaleParker
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Post by RickHaleParker »

Two most likely:
1. The hose between the induction pipe and EVAP valve is broken, clogged or pinched.
2. The hose between the EVAP valve and canister is broken, clogged or pinched.

Start at the EVAP value and check all the hoses leading off it.
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2003 S40, B4204T3, 14T twin scroll AW55-50/51SN, Siemens EMS 2000.
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ylwgto
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Post by ylwgto »

Thanks. Any links you know of to DIY for this, or a VIDA scan of the part location?
2009 XC90 3.2 R-Design 135K

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RickHaleParker
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Post by RickHaleParker »

ylwgto wrote: 21 Jun 2022, 16:09 Thanks. Any links you know of to DIY for this, or a VIDA scan of the part location?
Componet_Locations_XC90.gif
Componet_Locations_XC90.gif (74.77 KiB) Viewed 204 times
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1998 C70, B5234T3, 16T, AW50-42, Bosch Motronic 4.4, Special Edition package.
2003 S40, B4204T3, 14T twin scroll AW55-50/51SN, Siemens EMS 2000.
2004 S60R, B8444S TF80 AWD. Yamaha V8 conversion
2005 XC90 T6 Executive, B6294T, 4T65 AWD, Bosch Motronic 7.0.

ylwgto
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Post by ylwgto »

thanks. helpful but hard to see any detail. any chance you have a part # for the purge valve and those 2 hoses you mention?

appreciate it!
2009 XC90 3.2 R-Design 135K

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Post by abscate »

ylwgto wrote: 21 Jun 2022, 17:43 thanks. helpful but hard to see any detail. any chance you have a part # for the purge valve and those 2 hoses you mention?

appreciate it!
Punch in your VIN into this website for parts diagrams amd numbers

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pgill
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Post by pgill »

The purge valve is just above the throttle valve

Take a look at the pictures in this post

https://www.freel2.com/forum/topic32245.html

Here is a picture from that link showing the purge valve

Image


Note: I own two 3.2s and I have a purge valve on the shelf and I plan to replace it on my 3.2 that was running rough on a restart recently.

The purge line from the charcoal canister has to be removed to remove the manifold. If that line is broken of the O-rings are leaking you can get the code that you have. Also the purge pump has a air filter that can get clogged and cause problems.

The hose from the purge valve (shown in the picture) will cause a vacuum leak but not a vapor recovery leak. So if that hose is broken you should replace it but don't expect it to fix your check engine light.

Good luck

Paul

ylwgto
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Post by ylwgto »

awesome details, thank you. on my XC90 it appears the EVAP purge valve is not down by the throttle body, but rather hanging off a factory tab behind the upper radiator (at least I think that is it). I am going to tackle this, the thermostat and a faulty oil cooler coolant hose this weekend...all without removing the intake. wish me luck!
2009 XC90 3.2 R-Design 135K

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pgill
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Post by pgill »

Good luck.

The purge valve should be in the location that I showed above.

There are some minor difference in a XC90 3.2 and a S80 3.2 but the purge valve isn't one of those differences.

Take a picture of the part that you are looking at and post it here

Thanks

Paul

ylwgto
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Post by ylwgto »

Did the job today and the code cleared. real PITA to get the intake pipe off the throttle body and replace the vacuum hose from the evap valve to the backside of the throttle, but got it done. thanks for the help!!

the old one was indeed gunked up and dead.
2009 XC90 3.2 R-Design 135K

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