[Healeys] non-healey

[healeymanjim at hansencc.net]

need some help from some of you electrical wizards.  my daughter's 66 mustang has a temp guage problem.  i recently changed the instrument voltage regulator because the fuel and oil guage were not working properly (read kind of low).   corrected that problem but now the temp guage slowly rises all the way to the hot side.  it modulates from slightly over the hot mark to the letter H on the guage.  mustang forums indicated that it was the sending unit, which i replaced to no avail.  am getting voltage to guage and continuity on the wire going to the sending unit.  don't mind replacing the guage, if that is the problem.  am i missing anything before i spring for a new guage.