Hi Guys
I noticed after reading your threads that 1KZ with Auto Trans and overheating are a common topic, mine does strange things and im hoping if someone can tell me if this is normal.
I have an engine watchdog digital gauge connected to one of the bolts on the top radiator hose onto the block, in theory this should be one of the hottest places for the coolant to be.
When climbing large hills this gauge will reach 90-95 degrees with the air con off and me taking it easy (air con easily adds another 2-3 degrees). This has happened several times including the hills coming into newcastle, toowoomba & mt tamborine. The factory gauge climbs to almost the red.
I have replaced the radiator with a genuine denso and replaced the fan clutch and changed the coolant with no changes. I have even removed the driving lights with no changes.
Are these kind of temperatures normal? Has a capacitor fallen off my factory gauge allowing it to climb too early? Or do I keep looking for a problem?
I havent done the water pump or thermostat as I cant source a 71 degree thermostat, toyota can only sell me a 76 degree which I dont want to fit. The radiator place said they were pretty certain it wasnt the water pump.
I have seen threads on this forum where the gauge is still on half with the temperatures mentioned, has anyone had anything similar happen to theirs? I know there is a possibility of a cracked head etc but the car runs great and uses no oil or coolant.
Thanks
Aiden
I noticed after reading your threads that 1KZ with Auto Trans and overheating are a common topic, mine does strange things and im hoping if someone can tell me if this is normal.
I have an engine watchdog digital gauge connected to one of the bolts on the top radiator hose onto the block, in theory this should be one of the hottest places for the coolant to be.
When climbing large hills this gauge will reach 90-95 degrees with the air con off and me taking it easy (air con easily adds another 2-3 degrees). This has happened several times including the hills coming into newcastle, toowoomba & mt tamborine. The factory gauge climbs to almost the red.
I have replaced the radiator with a genuine denso and replaced the fan clutch and changed the coolant with no changes. I have even removed the driving lights with no changes.
Are these kind of temperatures normal? Has a capacitor fallen off my factory gauge allowing it to climb too early? Or do I keep looking for a problem?
I havent done the water pump or thermostat as I cant source a 71 degree thermostat, toyota can only sell me a 76 degree which I dont want to fit. The radiator place said they were pretty certain it wasnt the water pump.
I have seen threads on this forum where the gauge is still on half with the temperatures mentioned, has anyone had anything similar happen to theirs? I know there is a possibility of a cracked head etc but the car runs great and uses no oil or coolant.
Thanks
Aiden
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