Vacuum leak on 91 ZR1 - ZR-1 Net Registry Forums

kablamo · 12-31-2013

Hello all! I've been browsing this forum as I just got my first Corvette - a 91 ZR1 with 66k miles on it. I ran through the forum's inspection list and found a secondary port vacuum leak - runs and doesn't stop when key is in the ignition prior to starting.

Upon inspecting the secondary port vacuum I noticed that it was dangling (see photo) by the far right hand bolt (which was also loose). I also noticed that the main line coming off it it has disconnected just before the line that runs under the plenum. It looks like someone attempted to crimp it in the past and failed. Is it safe to re-fasten the secondary vacuum pump and replace the one connection and/or line to see if that fixes it?

Thanks for any tips and Happy New Year!

12-31-2013	#1
kablamo Join Date: Dec 2013 Location: Wisconsin Posts: 15	Vacuum leak on 91 ZR1 Hello all! I've been browsing this forum as I just got my first Corvette - a 91 ZR1 with 66k miles on it. I ran through the forum's inspection list and found a secondary port vacuum leak - runs and doesn't stop when key is in the ignition prior to starting. Upon inspecting the secondary port vacuum I noticed that it was dangling (see photo) by the far right hand bolt (which was also loose). I also noticed that the main line coming off it it has disconnected just before the line that runs under the plenum. It looks like someone attempted to crimp it in the past and failed. Is it safe to re-fasten the secondary vacuum pump and replace the one connection and/or line to see if that fixes it? Thanks for any tips and Happy New Year!