This truck is a curse... trans might be toast
So I was driving my truck today and it started making a load noise, kind of like an exhaust manifold leak. Thought maybe the gasket went bad, no biggie right? Gave it a little gas and the truck just stopped running on the highway. It turns over but sounds funky, wont start though. No smoke, had good oil pressure, no coolant leak or coolant loss. I have a CP3, new injectors when the CP3 was installed, has a lift pump, and a kory tune. I was only on tune #2, never went higher than that because the truck would shudder like the trans was slipping. So the truck is at the dealer. I'm waiting for the call tomorrow to tell me the motor is shot. I just stuck $8k in it for the injection pump failure. I'm wondering if the trans took a dump??? Anyone have anything similar happen to them?
2012 GMC Sierra 2500HD Denali
Stage 1 short block, ATI damper, Fass 150, CP3, upgraded trans, Up pipe, Down pipe, EZ lynk w/ 5 tunes SOTF, Magnaflow exhaust, PCV re-route, 4 inch Fabtech lift, 35in tires, HD motor mounts
Last edited by mstein86; 09-11-2019 at 08:50 AM.