Recent content by jadis192

I don't want to speak for dealers, but I've documented the noise with the wastegate arm. GM should have a TSB for this, replacing turbos and TBs seems pointless.

Additional video of the chirp on throttle tip-in.

Additional video of the chirp on throttle tip-in.

You can see the arm move on the wastegate aligned with the noise. Here is a picture of a wastegate and it's arm. The arm clearly moved during diagnostic startup. The TB is under the intercoolers, your have to remove the top of the engine to see them. Photo of a sample wastegate attached...

It's the wategate moving arm. You can see it move in the video. I'm gonna try placing high temp grease on it

DIAGNOSED! I captured video of the passenger side wastegate making the noise. Mystery solved. I did this by starting the car in diagnostic mode (hold start button for 10 seconds, NO clutch or brake). I am going to look for a very high heat automotive grease to put on the arm and test that...

DIAGNOSED! I captured video of the passenger side wastegate making the noise. Mystery solved. I did this by starting the car in diagnostic mode (hold start button for 10 seconds, NO clutch or brake). I am going to look for a very high heat automotive grease to put on the arm and test that...

I tried the diagnostic start as noted earlier on in this thread. Pressing the start button for 10 seconds, do not press brake or clutch. It triggered the chirp exactly as heard before. Now, the million dollar question is would the turbo or wastegate be priming or anything during a diagnostic...

I am contemplating this install. How is yours doing? I am looking for the performance gains, but also looking to cure the notorious chirp at 800rpm.

Lots of anxiety and disappointment to go around on this issue. Let's just not cannibalize each other. My message does not include any comment about "All are bad". Reality is parts have failure rates, everything has a failure rate, it's a fact. Impossible to know what it is on the TB ( or...

Silly question, if you got an OEM TB from dealer (same as factory) and GM is installing bad OEMs during build at factory, doesnt this confirm the problem is OEM? A modified TB would fix the issue of the off the shelf unit. ?

It sounds like the real solution is a new TB? Turbo doesn't seem to fix. I may get the Soler and do myself.

I'm still debating if I want to replace the throttle body myself to fix the chirp on throttle tip in. Was yours fixed by turbo replacement alone or TB replacement as well?

I listened to all the videos and can't hear anything abnormal

My 2024 has a weird trunk closure issue where the rear lift release is hitting the bumper and leaving marks. I noticed there is a space between the bumper and the trunk seal, perhaps that shouldn't be there? Anyone else?