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      07-12-2018, 01:31 AM   #29
Yozh
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Drives: 2011 335d M-Sport
Join Date: Mar 2014
Location: Wet Coast

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Quote:
Originally Posted by GmikeHall View Post
Well, she started right up this afternoon but a few moments after starting this knocking started. I can turn the car off then back on and the knocking takes a few seconds before it starts. What in the world am I up against here? I would love to think this is something simple but I sure doubt it at this point.
What about the harmonic balancer. I know you have a few miles in the car, is it still original?

Be careful pulling vacuum lines at random. You can break all the little plastic nipples they are on. They should not be easy to pull off if they are original.

At this mileage, you need to do a lot of preventive maintenance, refresh items. Start with CBU. Battery, harmonic balancer, all the fluids and filters. All the vacuum lines. Knocking could also be caused by a bad injector.
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