my bmw 1.9, t 1999,
starts fine then idles up and down, after a while driving it is ok, then when i switch off the engine and start it back up it idles up and down again, if i pull one of the senors off, top off the engine on the right side where the air pipe goes into the top it idles perfect but high. then i get a poping noise when i rev and the choke does not come on. I also checked when i undo the engine filler cap i get a suction, do bmw suck in when engine running.
Any help much appricated.
Edited by Dynamic Dave on 09/10/2007 at 20:04
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darren
I think Doc covered this, in detail, in the other BMW post on this page [or the next.]
It's likely that the diaphragm in that breather [the crankcase ventilation valve] has split.
Try a new one from the dealer. Not dear.
Edited by Screwloose on 09/10/2007 at 20:57
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thanks for u reply ,just woundering where about is the crankcase on e46 model is there a web site i can look..thank you again
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one more thing,the problem i got i already had a few months ago ,then just started to idle fine on its own until a week ago started to play up again,,thank again
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darren
The crankcase is the space below the engine block that the crankshaft spins around in.
This is the crankcase breather that allows fumes to be re-cycled. It can be more of an issue in cooler weather.
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hi again, i really mean where abouts is diaphram and is it easy to find and cheack for a split...thank you
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darren
I thought that you had already found it when you pulled the pipe off it?
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