I recently had my trans rebuilt and now I am noticing something that may or may not be a problem. This may be normal and I just have not noticed it before.
When I am driving on the highway (over 50 mph) and my RPMs are sitting at 2K, if I give it a very light acceloration, the RPMs quickly climb to 2.5K and then drop immediately back to 2K. If I let off the gas completely and coast, then give it light acceloration again, the RPMs will do the same thing (climb to 2.5K and then back to 2K).
Maybe I am just confused, but I thought if your TCC was in lockup, the RPMs should not increase with a light acceloration.
Is this normal, or does this rebuilt trans need to go back for some tweaks?