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Old 04-28-2013, 06:02 PM   #1
jrushing11
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Default overheating. . confused.

Okay so I'm out here working on my car.2002 wrx btw. I replaced all the plugs and started to burp new coolant into the system. My coolant isn't going anywhere and it's filling up like normal but my car says it's overheating hardcore. I'm looking around with my flashlight for leaks from the top of engine bay but I'm not seeing anything leaking. My rad fans are on overdrive and idk what to be checking next. Advice?
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Old 04-28-2013, 06:10 PM   #2
subaru_gc8
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get a block test it will tell you if there is exhaust gases in the coolant. if it is positive you need new head gaskets
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Old 04-28-2013, 06:14 PM   #3
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I did a compression test and got 120 on all 4 cylinders. Granted this was on a cold motor, and I've also checked my oil and there's no mixture. Can it still be a head gasket?
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Old 04-28-2013, 06:20 PM   #4
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Sounds like you still have air in there that needs to be burped.

Read post # 2 here: http://forums.nasioc.com/forums/showthread.php?t=504002

http://www.iwsti.com/forums/how-inst...nt-change.html
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Old 04-28-2013, 06:38 PM   #5
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I sure hope that's what it is
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Old 04-28-2013, 08:11 PM   #6
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Are you getting any bubbles in the coolant overflow?
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Old 04-28-2013, 08:31 PM   #7
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No [email protected] And the car stopped over heating once I burped it a few more times. I put on some gloves and squuezed the $hit out of that upper rad hose like 30+ times. Took it out to drive and the heat got instantly hot and it held for the ten minutes I drove it. Still getting my blinking misfire code which I am now assuming is a coilpack? Cause I put all new plugs in today gapped at .029. I built a boost leak tester and i'll be trying that thing out tomorrow. Then just to try to figure out how I lost all of my coolant in the first place. If you read my misfire+boost = retarded thread you'll see what had happened originally. Any other advice on things to do and check would be greatly appreciated. Thanks guys.
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Old 04-28-2013, 09:34 PM   #8
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Have you replaced your thermostat?
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Old 04-29-2013, 07:27 AM   #9
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not yet but I have a grimspeed one I am going to put it. I had it running then I was driving it home and it sprayed coolant everywhere again. Didn't take 20 minutes of driving like a granny for it to happen either. it was smoking from the bottom front driver's side. Or that is what it appeared to be at least. Hopefully I can get it up on the lift today. Any things to be looking at besides the bottom of the radiator and the lower hose?
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Old 04-29-2013, 09:30 AM   #10
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Did you check the turbo reservoir? It's the highest point in the coolant system. Open the cap on passenger side of intercooler. Top that off too
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Old 04-29-2013, 10:26 AM   #11
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Quote:
Originally Posted by greenplates View Post
Did you check the turbo reservoir? It's the highest point in the coolant system. Open the cap on passenger side of intercooler. Top that off too

That is where i always fill all of my coolant from. You're talking about the blank resevoir with the 3 coolant lines running from it correct?
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Old 04-29-2013, 11:02 AM   #12
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I'd start with replacing your thermostat. Refill and then burp it.
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Old 04-29-2013, 11:11 AM   #13
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Quote:
Originally Posted by nmlittlebigman View Post
I'd start with replacing your thermostat. Refill and then burp it.
Will do after work today. I'll take pictures while I'm under there to see if anyone can see stuff I don't. Thanks again
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Old 04-29-2013, 11:21 AM   #14
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Quote:
Originally Posted by jrushing11 View Post
I did a compression test and got 120 on all 4 cylinders. Granted this was on a cold motor, and I've also checked my oil and there's no mixture. Can it still be a head gasket?
when I blew my head gasket, I didnt have water in my oil either. from what I understand that is the last sign that you need a head gasket. A block test shows if there is exhaust gases in the coolant. ie you have a leak in your head gaskets is not a compression test
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Old 04-29-2013, 11:22 AM   #15
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double post
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Old 04-29-2013, 12:38 PM   #16
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Quote:
Originally Posted by subaru_gc8 View Post
when I blew my head gasket, I didnt have water in my oil either. from what I understand that is the last sign that you need a head gasket. A block test shows if there is exhaust gases in the coolant. ie you have a leak in your head gaskets is not a compression test

Great now I'm super worried again. I went to advanced yesterday and they told me that they didn't have them. Any local stores you know of that carry them?
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Old 04-29-2013, 12:58 PM   #17
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I keep reading things on additional signs for a blown HG and it just isn't adding up for it to be the HG. I am having no loss of power at all. Once i replaced the plugs the car ran like a monster, and it was parked in a garage so it was easier for me to check for any coolant burning up in the exhaust and there wasn't any white smoke (not that I could notice). Bubbles aren't present in the coolant overflow nor the main resevoir, and i thought my compression test was helping show my HG's were good. Idk I'm not doubting you as now I am very worried again that it might be my HG's. I am just really running out of time and will not be able to afford for this car to break down like that in the next week or so.
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Old 04-29-2013, 01:11 PM   #18
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Sorry if this has been discussed but how old is the water pump? What about the hoses? One of the hoses could have some serious blockage.
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Old 04-29-2013, 01:30 PM   #19
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Sorry if this has been discussed but how old is the water pump? What about the hoses? One of the hoses could have some serious blockage.
Water pump is aroun 40k now i think(don't hold me to that one) and which hoses are you talking about? the top radiator hose isn't clogged at all it felt like cause i was pumping it like a balloon. I couldn't really get my hand down to the bottom one because well naturally i have to be under the car and i gotta get the car up to get the skid plate off today to check it. BUT when i managed to get my hand on the hose it was definitely no where near as hot as the top hose if not at all.
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Old 04-29-2013, 11:56 PM   #20
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Quote:
Originally Posted by jrushing11 View Post
not yet but I have a grimspeed one I am going to put it. I had it running then I was driving it home and it sprayed coolant everywhere again. Didn't take 20 minutes of driving like a granny for it to happen either. it was smoking from the bottom front driver's side. Or that is what it appeared to be at least. Hopefully I can get it up on the lift today. Any things to be looking at besides the bottom of the radiator and the lower hose?
That's pretty much what you're looking for. It's possible that a bad head gasket could've caused this problem, but I'd call it unlikely. When you were burping the system, did you have the car running? (it's not absolutely necessary).
Also, when burping, if running, did you keep an eye on the coolant level and just keep topping it off?
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Old 04-30-2013, 03:26 PM   #21
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Quote:
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That's pretty much what you're looking for. It's possible that a bad head gasket could've caused this problem, but I'd call it unlikely. When you were burping the system, did you have the car running? (it's not absolutely necessary).
Also, when burping, if running, did you keep an eye on the coolant level and just keep topping it off?
Alright so I got under the car yesterday and the lower rad hose wasn't connected to the radiator, so that answers why all of my coolant went. So I went ahead and replaced my thermostat and put the hose back on. I started putting coolant back into the system and it seemed as though it was taking forever. The car kept getting to where it was overheating so I would turn it off let it cool down then start again. The radiator fans were kicking on at appropriate time so I know I didn't be a dummy and put the thermostat in backwards. But anyways I was confused as to why I had ran two gallons of coolant into my car and nothing was really working so I turned my car off and felt the bottom of the radiator and the lower hose... Both were cold. Maybe it is just how the hose is but it feels like there is pressure in the lower hose but possibly just air??? Idk my first thoughts were that my radiator is clogged, but does anyone else have any insight before I go ripping my radiator out? Thanks guys.
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Old 04-30-2013, 03:30 PM   #22
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And sorry to not directly answer your questions with my last reply GRM-Alan but yeah I was monitoring the main resevoir and it kept drinking coolant so I kept putting more in. Now my overflow is really full, but I feel like that could also be partially due to me putting to much in the overflow to begin with. And yes I was trying to burp the system 90% of the time with the car on, and I was squeezing the top hose to try and force all air out. The top rad hose also was hot and had coolant in it. If this makes any difference.
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Old 04-30-2013, 04:46 PM   #23
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you need an air/evac tool for cooling systems. its a tool that removes all air from the cooling system, creating a vacuum. you then open up a valve allowing it to suck coolant into the system and there will be no air pockets or bubbles, guaranteed. no need to burp the system. i bought mine from mac tools, its a great tool!
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Old 04-30-2013, 06:36 PM   #24
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So you think it's just air?
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Old 04-30-2013, 10:42 PM   #25
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I'm having a very similar issue, my next thing to check is the water pump, let us know what it turns out to be
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