Water temp

[rjwareagle]

does anyone know what the water temp should run in a 2006 f-250? mine was running about 175-180 stock and know with the sct it hits about 190 on the road and then comes down a little and back to 170's when stopped. any ideas? whats safe? whats not?

[bigwhite7.3stroker]

190 is fine not sure where the danger zone starts maybe someone else will chime in

[bismic]

Some say fan kicks on at 210, some say 215, others say 220. Full explanation: see below. Engine begins to defuel at 227 deg. The thermostat begins to open at about 195*F and is not fully open until about 215*F.

Engine temperature is not the only parameter that the PCM monitors to determine cooling fan operation. This is the reason that you will see some variation in engine temperature as it correlates to fan operation. The operation/description of the FSS (Fan Speed Sensor) from the PC/ED manual has a fairly good explanation as to how the system "thinks". This is not your traditional engine hits temp X and the fan clutch locks up. The fan speed sensor is a Hall-Effect sensor integral to the vistronic drive fan (VDF). The powertrain control module (PCM) will monitor the sensor input and control the VDF speed based upon engine coolant temperature (ECT), transmission fluid temperature (TFT) and intake air temperature (IAT) requirements. When an increase in fan speed for vehicle cooling is requested, the PCM will monitor the FSS signal and output the required pulse width modulated (PWM) signal to a fluid port valve within the VDF.

[04 stroker]

PHP Code:

Some say fan kicks on at 210, some say 215, others say 220. 


Really? My truck just driving around is only 162*. very heavy towing its only like 175* tops.

I would say 190* is nothing to worry about.

[bismic]

The point is that the fan will kick on to provide extra cooling when needed. If the fan is not on, you are clearly OK.

[rjwareagle]

THANKS!! Ever used the "water wetter" that you buy at auto zone? suppose to drop temp 15 deg. I have read good reviews on it. anyone tried it?

[tabraha]

redline water wetter can make a small difference but it is nothing revolutionary in my experience. I've used it in some of my old track cars but quit and to be honest with you haven't missed it.

[rjwareagle]

It got warm in Georgia today. Noticed my truck was running about 180-188 deg . just seems high compared to others. There seems to be three levels that the coolant changes in the bottle that I marked (just to see if I am loosing any, which im not) it might be nothing, but i like to try to play it safe. is that still fine? I have never noticed the fans turning on. this temp reading is from my scan gauge, the truck's gauge is fine and doesn't move.

[bismic]

Originally Posted by rjwareagle

It got warm in Georgia today. Noticed my truck was running about 180-188 deg . just seems high compared to others.

These temps are fine. The thermostat begins to open at about 190*F to 195*F and is not fully open until about 215*F to 219*F. Engine begins to defuel at 227 deg.

[w_huisman]

After I'm up to temp, my truck always runs 188 - 192.

Once in a while it might sneak up a degree or two higher than that for a short period of time after a hard run. But 99% of the time my temp falls between those numbers.