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#21
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Note that I did not change the upper hose or the CCV. But now my car makes white smoke and it’s very embarrassing…. Can’t drive it. My question is why it did not smoke before changing the oil return hose ? My theory is the old oil return hose was so melted that wouldn’t let any oil be vacuumed up ,,, and that means I need to replace CCV itself … am I right ? |
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#22
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Try this CCV test when it's hot. If the CCV is stuck, it will suck in extra air and fumes. It is possible the oil drain line was so clogged it couldn't suck vapors. Miss fires and lean codes are also possible with a failed CCV diaphragm. Mine had old miss fires and lean codes. They went away with new plugs and coils. Every now and then, it would record misfires but not set the engine light. Since replacing the CCV system, no misfires or other codes have been present.
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'06 X5 3.0i - bought @143,123 miles (12/26/20) |
#23
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Excess vacuum in the crankcase? Pull the dipstick and see if the oil burning goes away. Too much crankcase vacuum will pull oil past the VSS.
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2011 E70 • N55 (me) 2012 E70 • N63 (wife) |
#24
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Quote:
@X5chemist in this video he also says EXACTLY same thing as you, he says if I seen clogging in the hose, i would need to "Drain Back Pipe", (min 9:35) https://www.youtube.com/watch?v=amHwxoFAl7I What does it mean to Drain the Back Pipe, because thats what happened to me, the Return Hose was Melted and I dont think anything was going down there I didnt see any Mayo in the ends of it but it was so Melted it was not really a hose anymore. so what do I need to do for "Draining Back Pipe", I really hope this be the Solution so I dont have to change the whole CCV. |
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