So, how does one figure out what "H" is so you know you are half-way there? These gauges are why I have a separate monitor that shows any 4 parameters I choose that the truck computer reports, in digital format, along with trans gear and whether the torque converter is locked up. The analog gauges in my Ford hardly ever move, once up to operating temp--but I can see plenty of movement on the monitor.
'15 38RSSA Mobile Suites
'05 36TK3 Mobile Suites--retired but not forgotten
'10 F450 new to me
'09 F450 Lariat 4x4--died