BenzWorld Junior Member
Date registered: Aug 2012
Vehicle: 1966 200D
Location: Portland, OR
Mentioned: 0 Post(s)
Quoted: 0 Post(s)
Hissing when brake pedal not applied
Hey Folks. First off I have a 1966 200D. I noticed a hissing noise in my car when I have my foot off the brakes. Its a pretty quiet sound, and goes away as soon as my foot pushes on the pedal, and comes back as soon as I release it. I cant hear it under the hood, but its pretty hard to hear anything in the engine compartment with the clatter of a diesel running. Any idea if this is good, bad, or a non-issue? The car also has a problem of a surging idle and surging in first gear that I assume is a vacuum leak, but I haven't been able to figure it out yet. Could this maybe be the issue? Thanks for any info!
Last edited by 1966200; 10-25-2012 at 12:27 PM.