Over heating under load ZD30 DDi

[mudski]

Getting the whole cooling system flushed (not DIY), viscose fan "seems" ok.
Electric fan is ok, but no way to check if the ECU is actually switching it on other than when the engine is over heated. I will check next time it gets hot.
Only using factory heat gauge so not 100 accurate but a good indicator.
Looking at replacing the radiator--it is 18 years old.
We shall see.
Thanks Mudski

Get the engine at temp and see if you can stop the fan from spinning. I just use a welding glove or use a rolled up news paper. If you can stop it from spinning when the engine is running and hot, the hub is shot. The should be quite some resistance there.