Dazed and Confused
Join Date: May 2012
Location: Upstate New York
Re: 02 mustang 3.8l vibration
If the hose is collapsing, you're going to have a lag in the signal which can cause issues. I switched to silicon hoses that collapsed and my truck ran like crap. Even if it isn't the cause, it's worth replacing. Always eliminate obvious issues when troubleshooting so that you're only diagnosing the real problem.
Ever notice that there's so many high performance parts available for GM products?
Did you ever think that maybe they NEED them?