Exhaust valve

[snarkee]

My adaptive exhaust valve has squeaked on my 14 sierra since day 1

 

I booked an appointment July 28th and took the head service guy for a ride to have him hear the squeak every time the truck goes from 4 to 8 cylinder mode

 

Today he finally called me back to tell me Gm doesn't have a fix for it

 

For the people who HAVE had theirs fixed, what did your work order say?

 

Thx

[newdude]

Replace the exhaust. PI1201A applies to trucks built prior to December 8, 2013 and can be replaced under warranty if still within warranty.

[snarkee]

Mine is a march 14 build and they say there is nothing they can do

[fondupot]

clamp it open and be done with it.

[14SLTZ71]

Get some high temp anti seize compound a put it on the pivot pin and spring.

[snarkee]

I just clamped it. Obviously being that the dealer took a month to call me back they don't care. I'll just save my time and keep it clamped. Thx

[newdude]

Mine is a march 14 build and they say there is nothing they can do

 

How many miles do you have on it? Call the 1-800 number for GM or try another dealer. Should be under warranty unless you are out of mileage.

[snarkee]

3200. I don't have time for Gm and their shenanigans . My 14 silverado was a POS and all they did was give me lip service for 3 months. Nothing but empty promises about how they care etc. all it did was waste my cell phone minutes lol

[TJay74]

Exhaust system is covered under the 8yr / 80,000 warranty.

[BBRU]

How do you"clamp" it? Any pics, my squeaks also. Only time I notice it though is when my windows are down.

[snarkee]

Just turned it counterclockwise and used a hose clamp to hold it

[chuckl1218]

There's also a method to put a botl through the adatptive vavle listed here...

http://sandyblogs.com/techlink/?p=3296

[20Denali22]

Just turned it counterclockwise and used a hose clamp to hold it

That's what I did 4 months ago and its still holding strong. I like the way it sounds a little better too

[14SLTZ71]

There's also a method to put a botl through the adatptive vavle listed here...

http://sandyblogs.com/techlink/?p=3296

Yea, it talks about the rattle from the muffler and the whistle from the valve also.

[newdude]

There's also a method to put a botl through the adatptive vavle listed here...

http://sandyblogs.com/techlink/?p=3296

 

That method is intended for diagnostic aid, not a permanent fix, although some people have used it.

 

If the condition is reduced or changes greatly in severity with the bolt installed, replace the exhaust system.

 

 

We ordered one for a truck with this issue.