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yeah sounds like your radiator is having a bit of trouble. reverse flush it. dont just change the coolant. no point. coolant doesnt improve the specific heat capacity of water heaps (by that i mean the ability for water to transfer and dissapate heat). i have run just water in my rad. no probs. never hit over 1/2 temp. (i give my car the boot heaps). so your going to need to have really dirty coolant to stuff it up that bad. yeah sure because the rad needs air its not going to be able to cool itself effectively so a thermo fan might need to kick in. i am not too worried about the fan going on every 2 mins but shooting up that quick is strange.hey guess just a quick 1 on engine temp. my vr temp is great when driving (sits on 1/4) but soon as i stop it just shoots up so quick to just over half then the fan kicks in. the thing im worried about is the rapid increase in temperature! soon as i slow down or in traffic the fan comes on every 2 mins and this is in melbourne in winter!!! i could't imagine it in summer!!! the fan will be running all the time. also it never used to shoot up as fast. is this rapid increase in temp normal?
daniel VR said:yeah attaboy. its located where the top radiator hose goes into the engine. there is a housing with two nuts, undo them and its just sitting in there! sorry got no pic.
if you have a compressor do it yourself but if not its too costly to buy a reverse flush tool and compressor.daniel VR said:thanks garfa for your help, il give it a go! the thermostat i put in was an aftermarket one. do they open at the same temp as say a holden 1? or do they vary when you buy different brands? do you have a good brand or type in mind? as for the fan, thats a really good idea about the mannual switch, did you do that yourself? lastly, when the weather warms up a bit say in a month i might get the radiator done, whats it cost for a reverse flush?