ISM with coolant in the turbo charger
07 Essex with coolant in the turbo charger and I am loosing coolant. Currently at Cummins. Turbo charger was pressure checked and Cummins said it had a leak so I took to a turbo repair shop and it pressure tested fine., EGR cooler was pressure checked and is ok and cooling system was pressure checked and ok. Not sure where to go from here. Not sure who is correct about the Turbo chrger.
John, Pam, Nicholas, Aria
2007 Essex 4502
2015 GMC Seirra