Humming Noise
Thread Starter
Super Member
Joined: Jul 2003
Posts: 571
Likes: 1
From: Upstate NY
400E (177k)
Humming Noise
Hello Gentlemen,
Beginning yesterday after a 2 hour trip i took, my 93' 400E began producing a humming noise near the rear right wheel. It sounds as if something is running, like a motor or vacuum pump. I'm not exactly sure what it is but it is directly connected to the system, not part of the main fuse box, and it doesn't stop under any circumstances. Any input would be appreciated before i take it to the mechanic.
Thanks,
Al
Beginning yesterday after a 2 hour trip i took, my 93' 400E began producing a humming noise near the rear right wheel. It sounds as if something is running, like a motor or vacuum pump. I'm not exactly sure what it is but it is directly connected to the system, not part of the main fuse box, and it doesn't stop under any circumstances. Any input would be appreciated before i take it to the mechanic.
Thanks,
Al
Thread Starter
Super Member
Joined: Jul 2003
Posts: 571
Likes: 1
From: Upstate NY
400E (177k)
Would anyone happen to know where the relay is located, i have the Service manual, but after i took apart my center console looking for it. I have yet to prevail. Thanks.
