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Old 01-26-2024, 08:14 AM   #202
DangerZL1


 
Drives: 2023 Black ZL1 Auto
Join Date: Oct 2009
Location: FEMA Region 4
Posts: 2,936
Quote:
Originally Posted by triggerjerk View Post
Just got back from the dealer.
Noise is gone. It is weird not hearing the LT4 tick after owning the car for six months!

The dealer made sure to test drive my car before and after. Yeah like that was needed.

Anyways, pn 84404473 is the part on the invoice. Also, they said a new bulletin came out yesterday for this and they stated that they replaced the line pursuant to that bulletin. I assume to get paid from GM. They were still so uncertain that they called GM for more info. That bulletin is 23-NA-207.

Hopefully this ends it.
My dealer also told me about the new bulletin after they replaced the line yesterday. The advisor said the job took the tech a little over 2 hours while the standard time was over 4 hours. The exhaust has to be dropped down to access the connection to the HPFP line under the dash. It appears to finally be quiet now.
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