Q: New used transmission took off from red light and quit pulling

Hi Brian. Thanks for contacting us tonight. It really depends on a few important details that we don’t have that might indicate the source of the clicking noise. The first question is whether or not the transmission swapped is an exact OEM replacement, from the same year, make and model. If not, the click might be coming from mounts. It also depends on when this clicking noise is occurring. If it’s while the vehicle is in motion and increases in speed as you accelerate, then perhaps a coupler or input shaft is either loose or is hitting something. I would start by trying to write down the factors about the noise and check components or areas of the driveline that could be causing these noises for starters.