Posted by Ken See on Monday, August 11, 2003 at 1:30PM :
In Reply to: Hissing Noise? posted by Hal on Monday, August 11, 2003 at 12:50PM :
Maybe the exhaust pipe hanger is broken putting undue stress on your manifold and the intake cracked when you went over the modest bump and you're hearing a vacuum leak under acceleration. Just maybe.
Follow Ups: