High water temp alarm chirping

yep why is it not in the rad? is it just unplugged from sensor or is the sensor just hanging loose from the plug?

 

Is there a jumper wire between the two wires in the plug? It sounds like the sensor went bad and the previous owner rigged it up

 

Have you tried plugging it in to the sensor?

 

That sensor on the radiator reservoir is a low water sensor, your truck won't auto shut off without it wth low water

 

I have a 05 kenworth 600a c15 motor. My high water sensor is coming on. About a month before this when I got a new rad put in. My fan stopped coming on by its self at the set temp. Now sensor is going off felt the top pipe it was hot and the bottom but it was right under 175 on the gauge. Was trying to idle it high to make thermos stat kick on. But then saw that hose that runs over oil cooler looking like it was under pressure a slit in the blue hose. I don't know if this did that or not but going by the kenworth to but one in the morning. I have a new water pump just put in 6 months ago. And new thermostats about 10 months ago. I brought a fan clutch solenoid and I have it in the truck. I thought that was the reason it wasn't automatically kicking fan on when it was suppose to. What do you think about this?

 

The pulsing hoses are probably a bad coolant diverter valve. And that funny shaped blue hose above the oil cooler that goes into the EGR cooler. Carry a spare, if that hose fails your only option is to come up with about 10’ of hose to loop to make that connection with no kinks.