I have a sct livewire and innovative ficm tune. lately i noticed that my truck has been sputtering/shaking at 45-55mph. i put it into tow/haul and the sputtering/shaking goes away. could the transmission be slipping sense it seems to be doing this right at the shift point?
Also when I am at a dead stop and press the gas a ton of black smoke comes out but the truck only slowly crawls forward. this has just started yesterday. It feels like i'm dumping a ton of fuel in the engine but not going anywhere. I took out the air filter and cleaned it and tried a new filter. are my injectors going bad? no cel light has been turned on. I have even scanned the computer and it didn't find anything.
has anyone experienced anything like this?
Also when I am at a dead stop and press the gas a ton of black smoke comes out but the truck only slowly crawls forward. this has just started yesterday. It feels like i'm dumping a ton of fuel in the engine but not going anywhere. I took out the air filter and cleaned it and tried a new filter. are my injectors going bad? no cel light has been turned on. I have even scanned the computer and it didn't find anything.
has anyone experienced anything like this?