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Old 11-11-2016, 06:06 AM   #1
OH_NO_STi
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Default Overheating !! 05 STi

So recently my car has been over heating but doesn't touch the red and I changed the thermostat today and drained the coolant , put in a new thermostat and put more coolant , now it touched the red and when I put the heater on it blows cold air out , and over heats to the max . Oil temp gauge went crazy high and started warning we it started beaping . Only thing I didn't do it bleed it let all the air out . What can be the problem ? Any one know help ?????
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Old 11-11-2016, 06:26 AM   #2
wyguwrx
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Well first things first if you still have the old thermostat then test that if you haven't. If you don't have it then burp the cooling system before you take another step into diagnosing the issue because thats all it probably needs, after you clear the system of air and the problem continues it can be anything from a bad radiator, water pump or even a head gasket. Threw my experiences its likely your problem wasn't the thermostat because the gauge wouldnt reach that high of a point burping the system, if the car is throwing smoke then its a head gasket .
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Old 11-11-2016, 06:29 AM   #3
wyguwrx
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Also your hot air will blow hot once the cooling system is burped ☺ so that part is normal since you didn't do so. Hope you get it figured out.
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Old 11-11-2016, 11:09 AM   #4
OH_NO_STi
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How can I burp/bleed it ?
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Old 11-11-2016, 11:09 AM   #5
OH_NO_STi
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My oil temp gauge went up pretty high and since there defi the warning light came on and kept beeping
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Old 11-11-2016, 02:49 PM   #6
OH_NO_STi
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Well how much should my 2005 Sti spark plugs be gapped at? NGK IRINUIM
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Old 11-12-2016, 09:30 PM   #7
wyguwrx
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Im unsure of what the gap should be for the plugs but as for burping the system I used this yellow universal radiator bucket that I purchased at Napa and i just filled the radiator and alittle extra so that some of the fluid was sitting inside the bucket , turned the dial to let heat in but leave the heater blower off so the fluid cycles threw the heater core and let the car run for 3 fan cycles (its usually 2 but I like to be sure its completely burped.)there should be very little over heating. The gauge needle should stay around the 3/4 alittle over will be ok but if its reaching passed that and keeps climbing then it could be one of the few things I named in the previous post. If you have a access port plug it in and watch the coolant temp and see how hot it is getting. The hottest mine got was around 220 degrees when I burpped the system.
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Old 11-15-2016, 02:49 AM   #8
OH_NO_STi
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Now I'm having a boost issue it's like BOOST cutting or like jerking when I hit BOOST
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