Hey guys, this valve hisses while the car is running. I have replaced the valve (part#50913-S87-A81), and it seems to have gotten worse. One side of the valve vacuum line appears to run down to the front motor mount.

I have also recently replaced the 3 engine mounts with OE parts and the purge valve on the firewall (also still occasionally ticks).

This thing is driving me crazy.

The car is a 2003 CL-S with 80k miles.

Thanks in advance

 

Anyone?

 

I plan to make an appointment with the dealer this weekend to have it checked out. I think it's a vacuum issue.

 

Thats part of the "active" mount system. I removed it entirely as it server absolutely no purpose.

 

Figured it out today, the vacuum hoses were reversed going to the valve!

thanks for looking anyway

 

You got it!! you answered your own question. I did the same thing the other days while doing some moderate tune up on my car. I reversed my vacuum lines.

 

I had a similar noise couldn't figure it out, but my guy looked at it and said its my intake box. I'm just gonna deal with it till I throw the intake in!

 

FYI, putting in an intake will not solve your noise problem.