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The problem might be with the body control module (BCM). The PCM sends the signal to the BCM, which turns the fans on. Or you can buy a separate temperature fan relay system with a temp probe and bypass the system. It will work as normal cooling when needed only.


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Coolant coming out of the overflow is a sign of over-pressurisation. The cheapest cause of this is the pressure cap failing - have you replaced that? The other main causes of it are overheating, or gas getting into the system and so increasing the pressure, usually through a head gasket breach between a cylinder and the water jacket. Have you noticed any ...


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Does it bubble at all when radiator cap is removed (head gasket)? When's the last time you replaced your coolant (needs changing every 2 years) did the previous over flow tank have gunk in it? (mine did in my Holden 2001 and it got into the radiator/cooling system gave it a flush added new coolant, pipes, thermostat, maybe waterpump? I did when it happened ...


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I think the hose in question is the upper radiator hose. Squeezing the hose makes it oval shaped which makes it easier for air to escape as fluid enters. That is, the antifreeze has to displace any air in the system and the only place for that air to escape is out through the vent cap. Squeezing the hose just makes that easier...


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The first thing I would do is to have a scan performed on the vehicle. The probable faults to me from your question is that you may have changed parts, thyristor, that is not exactly the right one. They can come colour coded for differant temperature ranges. Other then that, because of the vehicles age a resistance is present in the temp gauge circuit. This ...



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