I just got a ABS Module with Traction Control off an existing vehicle with the Pump attached. I just needed the module. When I remove it there seem to be a white lithium looking grease on the metal bulbs. This was probably all original from the car and never touched. Are you supposed to put a little grease of some sort on the metal bulbs before installing the ABS module? I never heard that mentioned on any posts or on You Tube stuff I checked.