I borrowed a calibrated vacuum gauge from my job and measured the vacuum at the oil filler cap on top of the valve cover.
Bmw e46 oil cap vacuum.
As i realize that while i m in there i might as well replace my ccv oil return line clean my icv and throttlebody.
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This failure has created a high vacuum situation which is causing an engine.
Https bit ly 2urzuod new valve kit.
This bmw has a failed crankcase vent valve.
Oil filter housing cover cap for bmw 323i 328i 525i 528i 530i 320i 323ci 323i 325ci 325i 325xi 328ci 328i 330ci 330i 330xi x5 3 0i 525i 530i x3 2 5i x3 3 0i z4 2 5i z4 3 0i z3 2 5 z3 2 5i z3 2 8 z3 4 0 out of 5 stars 8.
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Bmw e30 e34 e36 e38 e39 e46 oil filler cap w castrol oem e31 e32 e53 e60 e63 fits.
Http amzn to 2lb9iyl how do i tell if my ccv valve is bad.
I found a technical bulletin not bmw suggesting that proper crankcase vacuum is a method to determine if the ccv is working.
The bulletin states that the vacuum should read from 3 to 6 inches of water at idle.
Popping vacuum cap off disa valve.
Testing if there was a vacuum at the oil filler opening.
Testing if there was a vacuum at the oil filler opening.
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