The short story: Removed plenum to fix secondary vac leak (check valve). Short drive to check that everything was functioning properly, they were. Put charge on battery, now the temp gauge doesn't work. Stays on cold, does not move. Please tell me that I do not have to remove the plenum again, as this will be the third time in as many weeks! I do not believe that the sensor connection at the back of the ignition module is loose, but it could be. All the other gauges work properly. What now!!
Get ready Jerry, I may be buying yet another set of gaskets!!