This had happened before 3x, but was about to turn truck off and wait 10 second and turn back on. Then truck would run fine for months. I found this on my truck manual.
My truck is riding differently. Here’s the story - I put new tires on Friday, an hour later, my truck started to ride rough. The light on dashboard is; Check engine, Engine power lost (truck would not get up when this was shown on dash. This error has not come up again), stibilitrac check. Truck’s driving performance; Idle sputters (like RPM rising, but they are not, it’s just the engine shaking), once driving when it shifts hard at 3000 RPMs (only 2nd gear). I took my truck to Advance, and this was the error code I received; #6 Cylinder Misfiring and Actuator module. I changed all spark plugs and number #6 was very dirty compared to the other and smelt very much so like gas. I have not driven this truck only cracked and it stayed in park. I had a person look at it, and he said that the #6 cylinder was the only problem he could find when he hooked up his code thingy. Now he played with everything and took out the #6 spark plug (this is now Tues) and said that it didn’t smell of gas like it should have. At the end. he stated that we first should change the Injector for #6. and if that did not correct the problem, then he would recommend the lifters to be replaced. I asked how confident he was about “his” diagnosis. and he stated… I am not a GM mechanic… wow. now I am confused as to what I should really do! BTW, he never cleared the error codes. :-/
Please anyone please advise!