Is 250 too hot?

[BigRigTech]

Good to hear, another problem solved and "on the cheap" at that...

 

[h2odrx]

even with a hole in my rad and mostly water in it i only see 200 max maybe 202? my temp probe is in the water pump too?

 

[Agnem]

The water pump temp probe location tends to run cooler than the back of the head, which is the best place for a maximum reading.

 

[h2odrx]

The water pump temp probe location tends to run cooler than the back of the head, which is the best place for a maximum reading.

I heard the other way around?

 

[Agnem]

Well, after re-thinking that statement, I may be wrong. I've never put a probe there, so I have no actual experience. The fact that the water has gone all the way through the engine at that point is a plus, but there is cooler water entering from the heater core in the winter, there is cooler air hitting it's external surfaces, and the fact that the factory senders for temp are located right up front where the coolest water from the radiator is coming makes me want to think opposite the Ford engineers. The IH engineers put the GPC on the 6.9 all the way in the back. I trust them more. ;p