SHOULD THE COOLANT BE FOAMING CAT ELC

[Cashflo]

Changing water pump today and draining the coolant which is CAT ELC coolant and its foaming. I know the cooler that its draining into is clean as I hosed it off for 10 minutes after a wipe down of simple green.


I need to know so i have time call the wife to come home so i can drive to Cat dealer for new coolant if its not suppose to foam like that.

[Cashflo]

Nobody?....

[strokinpower]

you sure you got all the simple green out

[ThirdCoastStroker]

I dont think it should be foaming, at lease I have never seen it foam like that

[Term3]

No, should not be foaming. Do you have a coolant filter? If you do I'd cut it open to see what contaminant may be in your coolant. Also, if you have a coolant filter you need to make sure your not using the filters that have the additive block inside.

[Cashflo]

The simple green was a 30:1 dilution and the cooler was thoroughly rinsed.
There was a lot of corrosion, rust, pitting on the water pumps' hose connection. There was none on the radiators' hose barbs. There was also what appeared to be calcuim type of buildup where the water pumps seal was. I had to take a wire brush to the block.

Coolant filter was part of my water pump replacement and is a Dieselsite product.

Got about 2 tablespoons of grit and sand draining the coolant. Im glad im adding a coolant filter.

Im leaving the fan off for now incase i have other issues. My truck is mostly a commuter. I was lucky that the fan was easy to get off.

I noticed the water pump that failed wasnt factory and there was some dried blood on the fan blade were the previous owner cut himself.