Knocking 740I

[ebida3]

A worn VANO unit rattles like a diesel until oil pressure is built up. Time 2-3 seconds max then goes away.
Look up on YouTube timing chain noise. Then look up VANOS start sound. Then you tell me.

Check engine light (CEL) means 'Cost Estimate Large'

[XAlt]

A worn VANO unit rattles like a diesel until oil pressure is built up. Time 2-3 seconds max then goes away.
Look up on YouTube timing chain noise. Then look up VANOS start sound. Then you tell me.

Check engine light (CEL) means 'Cost Estimate Large'

A worn VANOS check valve sounds like oil starvation (it technically is). You can do the seals + guides and still have that rattle.

All M62TUs will diesel at warm idle unless the seals are replaced.

[Dewart]

A worn VANOS check valve sounds like oil starvation (it technically is). You can do the seals + guides and still have that rattle.

All M62TUs will diesel at warm idle unless the seals are replaced.

Thanks guys. Hoping it's the vanos seals only. Didn't get right back to,had to get ready for the holiday. Hope everyone had a great one. Thanks again.

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