Can the engine start overheating before rad coolant reaches 82° to activate the temp switch? Cluster tells me engine is overheating before the fan switches on.
Have installed a 16" SPAL puller instead of the clutch fan. It is switched by the 82/72° switch screwed in the top of the radiator. New rad, new hoses, new thermostat, new coolant, new waterpump, new temp sensor for the cluster.
Wiring is good, fan turns on if i jump the wires connected to the temp switch.
Tried two different new temp switches, both activate ~82° in a glass of boiling water with a cooking thermometer. And 82° is really too hot to touch the glass.
I know thermostat opening is good, because engine gets pretty warm, before bottom rad hose starts suddenly getting hot.
Warm coolant is getting to the rad, but judging by the touch it doesn't seem to get nowhere close to 82° before my cluster is telling me that engine is overheating.
If I put the HVAC blower on full hot blast and jump the temp switch wires to turn on the fan, the engine cools down to the point of thermostat closing - bottom rad hose gets cold. My cluster is toasted?
Have installed a 16" SPAL puller instead of the clutch fan. It is switched by the 82/72° switch screwed in the top of the radiator. New rad, new hoses, new thermostat, new coolant, new waterpump, new temp sensor for the cluster.
Wiring is good, fan turns on if i jump the wires connected to the temp switch.
Tried two different new temp switches, both activate ~82° in a glass of boiling water with a cooking thermometer. And 82° is really too hot to touch the glass.
I know thermostat opening is good, because engine gets pretty warm, before bottom rad hose starts suddenly getting hot.
Warm coolant is getting to the rad, but judging by the touch it doesn't seem to get nowhere close to 82° before my cluster is telling me that engine is overheating.
If I put the HVAC blower on full hot blast and jump the temp switch wires to turn on the fan, the engine cools down to the point of thermostat closing - bottom rad hose gets cold. My cluster is toasted?
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