Allienmass Posted April 24, 2015 Share Posted April 24, 2015 Something's up with my 2004 impreza wrx after a 30 min or more drive the fan doesnt cut out anymore and the temp gauge on dash is reading slightly lower than normal, the only way to stop the fan is to turn the key completely off, iv just had a new cambelt, all new pullys and tensioner and water pump and thermostat and radiator fitted ? Iv had it pluged in and no faults are showing up. Engine seems to run okay, no probs starting or idling. Iv looked online and am thinking my engine coolant sensor is faulty, do you think those problems could be a engine coolant sensor ? Please help, rather worried about it Quote Link to comment Share on other sites More sharing options...
stants Posted April 24, 2015 Share Posted April 24, 2015 thermo switch gone ? Controls the fans on and off, not sure if yours has one but may be worth having a look, Quote Link to comment Share on other sites More sharing options...
Allienmass Posted April 24, 2015 Author Share Posted April 24, 2015 Okay thanks i will have a look Quote Link to comment Share on other sites More sharing options...
stants Posted April 24, 2015 Share Posted April 24, 2015 How's the coolant levels looking ? Maybe an airlock somewhere, are you getting heat from the cabin heaters? Quote Link to comment Share on other sites More sharing options...
Allienmass Posted April 24, 2015 Author Share Posted April 24, 2015 Yeah getting heat in cabin, coolant hasnt moved since i was checking it after the work was done, its slightly above the max line cos i put abit to much in. Quote Link to comment Share on other sites More sharing options...
stants Posted April 24, 2015 Share Posted April 24, 2015 Is that max when hot ? Quote Link to comment Share on other sites More sharing options...
Allienmass Posted April 24, 2015 Author Share Posted April 24, 2015 Yeah goes bout inch above max wen hot Quote Link to comment Share on other sites More sharing options...
Allienmass Posted April 24, 2015 Author Share Posted April 24, 2015 Iv noticed somthing else that happens, wen the fan is running after iv pulled up somwhere, the fan runs fast then cuts down to a lower speed and then it used to cut out after about 30-45 seconds. Maybe it could be just a switch the turns it off all together has gone ??? Quote Link to comment Share on other sites More sharing options...
savage bulldogs Posted April 24, 2015 Share Posted April 24, 2015 Maybe check the plug for corrosion and the insulation is intact on the wiring , as that area does get weathered and is close to the heat from the headers Quote Link to comment Share on other sites More sharing options...
stants Posted April 24, 2015 Share Posted April 24, 2015 You have aircon ? They haven't wired the wrong one up ? Quote Link to comment Share on other sites More sharing options...
Allienmass Posted April 24, 2015 Author Share Posted April 24, 2015 The bloke that did all the work said it was all very clean for the age so dont thk corrosion is it, wires look gd aswel. Yeah iv got air con but i always keep it off, apart from the air con belt he wouldnt have touched wires for the air con would he ? Quote Link to comment Share on other sites More sharing options...
stants Posted April 24, 2015 Share Posted April 24, 2015 No bit if he'd taken the rad out he'd have unclipped the harness for both fans Quote Link to comment Share on other sites More sharing options...
Allienmass Posted April 25, 2015 Author Share Posted April 25, 2015 I dont know myself but if he had done that wouldnt the fan not start atal ? Quote Link to comment Share on other sites More sharing options...
stants Posted April 25, 2015 Share Posted April 25, 2015 I'm just clutching at straws really maybe a bad earth or shorting out, are all the fuses ok ? Quote Link to comment Share on other sites More sharing options...
Allienmass Posted April 25, 2015 Author Share Posted April 25, 2015 Yeah iv checked the fuses, wondering bout the relays now, might just change them to see if it works Quote Link to comment Share on other sites More sharing options...
Allienmass Posted April 25, 2015 Author Share Posted April 25, 2015 If not them i thk il try the coolant temp sensor next Quote Link to comment Share on other sites More sharing options...
stants Posted April 25, 2015 Share Posted April 25, 2015 Do you have a multimeter ? Will make life a lot easier. Hope it turns out to be something simple Quote Link to comment Share on other sites More sharing options...
Allienmass Posted April 25, 2015 Author Share Posted April 25, 2015 No dont have multimeter, yeah same haha, il let you know what happens, thanks for all your advice stants ;) Quote Link to comment Share on other sites More sharing options...
Allienmass Posted April 28, 2015 Author Share Posted April 28, 2015 Anyone else wiv any fews on my probs ? Quote Link to comment Share on other sites More sharing options...
Allienmass Posted May 3, 2015 Author Share Posted May 3, 2015 Rite iv got a coolant temp sensor coming and will try that. Iv noticed somthing else odd thats happening, if i turn the heater fan on in the car it make the temp gauge on the dash read correctly again instead of a bit low, and when iv pulled up and am waiting for the fan to turn off which it doesnt, if the heater fan is on the coolant fan stays on full blast if i turn off heater fan the coolant fan goes to half speed and then still wont cut off. Any ideas anyone ? Quote Link to comment Share on other sites More sharing options...
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