Throttle "whistle"
#1
Throttle "whistle"
While driving, at a certain range of throttle% vs. MAP, I get a "whistle" from the throttle. It's easiest to make happen while at highway speeds and flat areas. I very slowly start to creep the throttle open more and the "whistle" will come on. It's only there for a few % then goes away above that. I can back off a bit and it comes back in. Depending on load (hills), it may move up or down a few % but always around the same general range.
I have had this issue for years and smoothed the TB to try solving the issue, but this didn't seem to change anything. Since then it has just "been there" and I ignored it.
Now that I put the LS1 intake on, the whistle seems more pronounced and louder. I'm sure it has something to do with turbulence around the throttle blade but not sure how to go about attacking the problem.
I have had this issue for years and smoothed the TB to try solving the issue, but this didn't seem to change anything. Since then it has just "been there" and I ignored it.
Now that I put the LS1 intake on, the whistle seems more pronounced and louder. I'm sure it has something to do with turbulence around the throttle blade but not sure how to go about attacking the problem.