Thread: what could cause this weird idle behavior on a E36?
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Old 10-31-2012, 04:30 PM   #3
bmdbley'sBro
wouldu like some tinfoil?
 
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Join Date: Apr 2005
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Car: E36-M42, ej22t
Quote:
Originally Posted by sb_600 View Post
sounds like a vacuum leak to me
thats what i thought too - but nothing can be heard leak wise.

I read about a tricky to find brake booster or master cylinder vac leak - how would one tell if that was the cause?
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