[edwindeweese30]

I changed my cold air intake the other day, because the old one was dented in and very dirty, so I got a slightly bigger one, all I did was changed the Spectre s old one to new one, tightened everything, unplug battery and maf, plug battery And maf, now my cars rpm gauges goes up and down and hissing is louder, do I have a vacuum leak somewhere? I have a 2006 tib gt with 96,000 miles, thank you😁

 

[Charlie-III]

Sounds like a leak between the MAF and engine. How is it mounted to the upper intake manifold? Recheck all connections and look for open ports.