2015 KW T270 whistle and loss power uphill

Discussion in 'Kenworth Forum' started by Navigatorpirate, Mar 14, 2021.

  1. Navigatorpirate

    Navigatorpirate Bobtail Member

    36
    9
    Mar 14, 2021
    Orange County
    0
    Hello everyone! Maybe I can find right advice about this issue. I have 2015 T270 expedite truck, paccar px9/cummins ISL9 350hp. 5000 miles ago def/egr was off and 1000 miles ago dpf filter was drilled. I noticed on the road today - probably turbocharger making unusual whistling noise when taking off gas pedal. Whistle only in motion, while idle everything ok. Besides it feels little bit loss of power uphill (empty/loaded). What it need to check first before I’ll go to rebuild a turbocharger? Thanks
     
    Last edited: Mar 14, 2021
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