|03-28-2008, 06:08 PM||#1 (permalink)|
Charcoal canister shut-off valve?
I have a 1994 SL320 with a check engine light for code PO441 (Purge control valve function), which I got from the MB dealer that I had look at the problem. I have replaced the purge valve as I believe it had died. It was full of carbon particles from the canister. The new valve I installed also had some particles in it after a short time, but I cleaned it and it is still OK (I think). I have spliced in a fuel filter to keep the particles out for now. When I blow into the tubing that goes to the canister from the Purge valve I can hear a rushing sound coming from somewhere below the Purge valve. I have checked the canister and the three tubes appear OK as does the canister. I do not hear any leaks in that area. I think the sound is probably coming from, or near, the canister shut-off valve, but I don't know where it is located. Can anyone tell me where it is and how do I access it?
|03-29-2008, 11:07 AM||#2 (permalink)|
Date registered: Jul 2006
Vehicle: Y2K SL500 Silver
Location: So. California
Welcome to the R129 Forum. Check FUEL SYSTEM>CLOSED FUEL-EVAPORATION-CONTROL SYSTEM
Or take a look at these drawings and see if they help at the Russian parts site.
Mit freundlichen Grüßen, Lynn
2000 SL500 Silver
2000 SL500 SOLD
1989 560SL SOLD
1988 560SL SOLD
Last edited by lynns; 03-29-2008 at 11:09 AM.
|03-29-2008, 02:04 PM||#3 (permalink)|
Thanks lynns, but they really don't show where these lines are on the car. For instance, one of the lines coming off of the canister goes into a grommet and through the frame towards the engine but I can't see where it comes out on the other side. I think that is where I can hear rushing when I blow into the tube that comes fron the Purge valve. I have a diagram that shows a canister shut-off valve but I have no idea where it is located. I also don't think I should be able to blow or suck air through the canister without any resistance. Am I correct?
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