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#1
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"Check Filler Cap" mystery solved...
Today the SES P0455 Evap Large Leak showed up. I thought for sure it was a bad (new) gas cap, but confirmed it wasn't the gas cap. Spent hours searching and reading this site today. What caught my attention was the "Fuel Tank Breather Valve" located at the front of the engine on the driver's side. I had to remove this unit when I did the upper timing chain gasket. To make a long story short, I thought the C-clamp hose was on tight and all the way in--it wasn't (smacking myself). I gently pulled on the c-clamp to check it. The hose came right off as if it wasn't attached to the valve. That sumbi*ch was so hard to get on properly. Had to press the c-clamp so hard my thumb is still sore. It took 20 minutes of grunting to hear that magical click...it's properly installed. (I must have had a brain fart when did it last month) What I learned today is that the SES fault code P0455 and "Check Filler Cap" messages are not always about the gas cap like it is written on the gas cap. Erased the fault code, started up the X, and no more CFC messages. So far no CFC after 7 starts and shut downs. All is good. Thanks Xoutpost! Last edited by MrFixIt; 01-18-2010 at 09:59 AM. Reason: Spelling and accuracy of the parts' name. |
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#2
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Good detective work, good fix, good pic, & good post!
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Ol'UncleMotor From the Home Base of Pro Bono Punditry and 50 Cent Opins... Our Mtn Scenes, Car Pics, and Road Trip Pics on Flickr: http://www.flickr.com/photos/4527537...7627297418250/ http://www.flickr.com/photos/4527537...7627332480833/ http://www.flickr.com/photos/45275375@N00/ My X Page |
#3
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great find!
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#4
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Nice job MrFixit! I see your in Fla. What area? I'm in St. Simons island about 40 mins from Jacksonville. Not alot of BMW enthusiasts around here.
-Ben |
#5
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I love these posts. Thanks for sharing the info, and the pic, and ....
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Currently driving: 2011 E70 x35i , 2011 E90 335d Previous BMWs: 2007 E90 328i , 2005 E53 3.0i, 2011 F10 535i (6spd manual) |
#6
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I'm in South Tampa near MacDill AFB.
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#7
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Did the error come back after properly connecting the hose to the vent valve? I am experiencing the same issue after replacing my vent valve with a URO one. I guess I need to go and make sure I connected that hose properly...
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02 Imola on Black Dinan S2 4.6iS 00 RoyalRot on Sand/Black 740i Short Sport |
#8
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After reseating my vent valve hose, the check filler cap message did not appear for 4 or 5 starts and then this AM I got it again. Is the x5 cap suppose to click when tightened? Also I noticed mine appears to be genuine but has a blue gasket ring around it. Aren't these normally green?
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02 Imola on Black Dinan S2 4.6iS 00 RoyalRot on Sand/Black 740i Short Sport |
#9
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Simple test, check with a voltmeter what ohm reading you get on the valve itself when you pull off the wire. After I put the V8 back in the car last fall, this error came up (as it did before pulling the engine). INPA showed it as a loss of continuity on the valve's internal circuit which was easily confirmed by checking it with a volt meter. Purchased a new unit and the problem was fixed. Lately I have seen a number of people reporting this issue and there are many on offer on the internet which seems to say this is a common maintenance item.
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2003 4.4i black ext./black int./black headliner (kid's runabout) 2014 535d X-drive, M package, silver/black interior Sold but not forgotten: 2009 E70 35d, black ext./black int./black headliner (sold 2021) 2006 4.8iS Le Mans blue/cream int./black headliner, SOLD in 2012 sadly... Other hardware: 2015 Cayenne S (wife's new DD and definitely wroooommmmm) 2016 Tundra 1794 edition crew cab, luxo hauler 2005 Tundra crew cab, weekend hauler. Sold after 150k very happy miles. |
#10
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I replaced the valve with a NEW URO part (cheap $40) and it passed the tank vent test successfully with DiS. Before replacing the valve I would get a tank vent system error but now I get that and a leak error after the replacement...
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02 Imola on Black Dinan S2 4.6iS 00 RoyalRot on Sand/Black 740i Short Sport |
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