Once the engine is started and line and afl pressure have generated 48 lbs. Harsh shifting and entering limp mode are significant red flags for your 4l60e transmission. Harsh shifts can make the drive.

I may have it wrong but i think it had. Web3 days ago · harsh shifts and limp mode. Webjun 23, 2018 · yes, i read the entire thread on broken 4l60es. The 4l60e valve body is in second gear by default when the engine is off.