lolder Report post Posted December 10, 2017 The last few weeks I've heard my electric vacuum pump running increasingly more often. It's very loud with the hood open. I think it's down in the lower front of the ICE. I suspect there is a small leak somewhere perhaps in the tubing or somewhere in the brake booster system. It will probably be extremely difficult to find. I'll check with my independent mechanic first but I guess I'll have to take it to the dealer. There are not yet any messages or DTCs. Any suggestions? Quote Share this post Link to post Share on other sites