NHTSA Complaint #11499193 — 2017 HYUNDAI TUCSON

The vehicle loses power/decelerates during normal operation regardless of speed. The car does not indicate an error (check engine light) does not illuminate. The vehicle has been at the dealer under warranty since 10/3/2022 with numerous diagnostics performed. The service manager gave us an update; Began diagnosis Had drop in turbo when Acc ordered turbo on 10/7/22 Turbo came in on 10/25/22 installed 10/28 Still same issue but no drop in turbo now 11/4/22 exhaust was removed from cat back and road tested. 11/9/22 They have cleaned all grounds, and checked all connections at the ecm. Completed fuel sample inspection 11/14/22 fuel sample results came back no issue 11/18/22 began flight recording to see if any change between know good car, was unable to see any difference. 11/28/22 removing valve covers for engine inspection of cyclinder walls. Almost completed I shop, hoping to have it completed tomorrow. Let me know if you have any questions According the service manager engine inspection came back with no issues. Hyundai Corporation has been informed and a case was made on 12/28/2022