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|3-Series (E36) Chat relating to the BMW 3-Series from 1992-1999. Autodoodad Specific models include: BMW 316i, BMW 318i, BMW 318iS/ti, BMW 320, BMW 323, BMW 320, BMW 324, BMW 325, BMW 328.|
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Originally Posted by Larry Horne
Plugs: Bought from local BMW Dealer, OEM items
Pump and Control Valve: Pump currently runs for approximately 2-3 minutes on inital start then cuts off.
I can disconnect the vacuum line to the control valve and see if any change on cold start. The only thing I am aware of wrong with the 2nd air system is that the pump bearings are making some noise but it is moving air.
Originally Posted by AJ's320i
Your rough running could also be caused by a VANOS unit that is sticking. Before you do your next oil change try running a can of BG Quick Clean for engines. Add the can to your oil when the engine is at about 1/4 temp, then go drive arround town for about 20 min, stop and go driving is the best because it will make the VANOS unit work the most, then drain the oil and change the filter and refill with your standard 10-30 oil.
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