With engine at operating temp and fan on I have 105 at the top hose and 85 at the bottom hose. For the second test where I measure the thermostat housing is the fan to be on or off? With the fan on it's reading about 165.
I had CAT put a new water pump on too btw.
Water Pump Weep 3406E
Discussion in 'Trucks [ Eighteen Wheelers ]' started by JimmyWells, Jul 21, 2017.
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