I had to remove the intake and intercooler pipes to replace the t-stat housing and when I did that it sounds like I have an exhaust leak right by the intake metal 90. Sounds like it is resonating throught the intake manifold as well. Anyone else ever have this happen?What did you have to replace?

 

Can you be more specific? Pictures would help.

 

Sorry. I got a video of it.

 

Almost sounds like u r running on one rotor

 

I let the car run for about a minute before removing all the intake and intercooler hoses. The motor was running perfect before I worked on it. I know in the video I said it runs rougher but It didn't run rough before this. I'm thinking it must be pulling major vacuum cause it hangs onto a rev and runs rough since it started this. It really sounds like an exhaust leak in person and what you hear in the video is the sound that I hear which sounds like it is resonating through the manifold.

 

Fixed it. Air pump injection hose was cracked underneath. Runs like a top again