Lisa Crandall
Active Member
Just bought a 2002 gtx 4 tec 155 with 160 hrs and 65 miles. We took it out for the first time and could not get it to over 35. The rpms were 7500 to 7800. My husband couldnt get it pass 30 at 8000 rpms. Checked the impeller looks good. Does anyone know what we should do next?