Elvileg nem mindegyik kapta meg a Tier 1+ motorfrissítést, amelyik nem kapott azokon csak a szükséges elkopott alkatrészeket cserélték. Kabin átalakítást mindegyiken elvégezték és kicserélték a teljes Siemens elektronikát Mitsubishi gyártmányúra.Érdemes megnézni ezt a fórumot itt felsorolnak néhány gépet,hogy milyen hibával álltak meg. 

7231 - crankcase overpressure, would not run. Water coming from #5 pa. #5 pa replaced,  still get crankcase overpressure and will not run - placed into storage

7233 - crankcase overpressure tripped. Piston found on engine compartment floor. Oil on walkways.  Placed into storage

7286 - fire in electrical cabinet in back wall of cab. Electric fire in nose. Fire require fire department. Placed into storage

7316 - alternator fire required fire department.  Towed to Chattanooga and stored. 

7323 - long list of electrical and wiring issues.  Ground relay lockout, unit will not load. Placed into b/o storage Jan 2019 account poor performance 

7293 - drops load. Computer issues. Placed into long term cold storage Nov 2019 account poor performance. 

7264 - alternator. Wiring problems. Repeated cab signal problem.  Placed into storage Nov 2019 account poor performance. 

7238 - low coolant pressure. External water leaks. 1-8 rob bearing deeply pitted, copper debris in mich filters. Needs complete overhaul. 

Thats 8 random units of of the 46. The only 8 I pulled reports on. Something tells me the other 38 are not cherries either.

 https://www.trainorders.com/discussion/read.php?2,5126284