vendredi 22 août 2014

Possible vanos issue? Cold start rumble.

So I've had a rough cold start idle since I bought my car back in January 2014. The car had 88,000 miles on it. It now has 96000 miles. I figure I inquire about this before there is any serious issue.



My car has no check engine light, EML etc. When I start it up in the morning, it has a rumble sound for about a minute after it has slightly warmed up. I believe the car is building up oil pressure???



BUT if I slightly press the throttle, the rumble goes away. I keep the RPM around 1,000 and it appears to have no odd engine rumble.

My car runs great when it's all warmed up and I believe it has all the power it should, it pulls hard with no hesitation.



The vanos has a slight clack by listening to it with a stethoscope, but I believe that is also normal and not excessive. Maybe it just needs the seals replaced or the throttle body has to be cleaned? I've got no clue. :banghead:



Anyone have similar symptoms? Please let me know what you think it could be. I've read a lot about this issue and haven't found anything quite like this on the forum. Thanks! :thumbup:




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