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Hello everyone, my first post in this forum.
I have 2017 Volt LT, had it for about 9 month and has 22000 miles.
I use ice often due to lack of charging time and level 2 charger.
Every time ice has been on and I turn off the car, there is a scraping noise for 2 to 3 second.
Noise comes on about 20 seconds after shut off.
Went to the dealer for fix and they told me that this noise is from egr valve and it is normal.
Has anybody heard this? or has same problem?

Dave
 
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