Hot running SHO?

[SHOstoppin93]

Hey guys, I live in Indiana and it was about 75F yesterday and my SHO runs at the N of NORMAL all the time. Is this normal? I flushed the cooling system at the shop I used to work at (all the old coolant, not just drain and fill) put in 50/50 with distilled water and 2 bottles of Water Wetter. I also put in a new Motorcraft B thermostat at the same time. No idea why it runs that hot, but I don't think it should! How hot do yours run?

 

[Off Road SHO]

The "N" is a very subjective point. On some cars it means 195 degrees Fahrenheit ( damn, I can never remember how to spell that dang word) on others it might mean 220. The temp guage in the dash cluster reads the amount of resistance to ground that the sending unit is causing. The sending unit creates more or less resisitance (can't remember which) as the coolant temperature rises.

You might just have a bad sending unit, or a loose or corroded connection to the sending unit. Either way, it would be best to monitor the temperature with some other type of guage before jumping to contusions.

Get an infrared temperature probe; the kind where you just point a visibe red laser at the object you want to measure. They work well.

Tom

 

[groundpounders]

i would start of by checking, cleaning the ground wire coming out of the battery terminal plug it is the small gauge black cable and it gets grounded to the pass side. i had a similar problem with my 94 it would read in the middle to hot, the fans would not turn on? changed thermostat, flushed, filled 50/50, then changed the radiator still the same..... after a looks at the engine compartment i saw the ground wire was corroded changed the terminals and cleaned the surface for the ground wire.....walla my gauge was back to normal... hope this helps

 

[SHOstoppin93]

hmm both sound good, I have no way to get an infrared thermometer, but I will check for the corroded wire. I've never changed the Temp sending unit, it may be time... thanks!