How to check 4l60e pump???
Obviously make sure the converter is properly installed and bolted up and give it a try.
Remember to add more ATF.
The quicky/approximate way to test the pump is to check the trans fluid level before and after the engine starts. When working the pump will pull the level down about one inch. On some cars (especially Gen-4) it can be hard to read the fluid level due to the major bend in the dip stick tube scraping off fluid.





