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Old 10-30-2005, 02:25 AM   #1
dabum8u
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Default No more coolant

Hello
I just hit 105000 and had my timing belt changed and water pump changed that I ordered from subarugenuineparts. I brought it to my cousin who is a mechanic and he also helped me replace my themostat and accessory belts.

When I got to his shop to pick up the car, he was still working on a problem that arose, the radiator fan wouldnt shut off. After about an hr...he switched a relays and it starting working properly. I drive home, about 1-1.5 hrs away and smelled coolant so I pop the hood, all the coolant is gone from the resevoir. I wait 10 mins, open the radiator cap, no coolant. I squeeze the upper hose, squishy, feels like only air inside. The whole time driving home, I was checking the thermometer and it never jumped and stayed constant, slightly under the halfway mark.

Coolant is all under the car on the driver's side that extends all the way to the muffler(was driving on the freeway) but nothing on the passenger side, there is a leak somewhere, but I dont know where to look. I'm not exactly sure what I can do, I dont really want to go back and have him fix it...

If I'm out of coolant, shouldn't the temperature gauge have went up?? Where is the temp taken anyway, the thermostat? Is there any permanent damage that I could have done to my car?
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Last edited by dabum8u; 10-30-2005 at 12:19 PM.
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Old 10-30-2005, 07:52 AM   #2
solbey11
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Well I would add water to the cooling system, start the car and crawl underneath it to see where it's leaking. Did you put a new gasket on with the water pump? Also check the hoses. Sound's like your cousin's not the world's best mechanic.
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Old 10-30-2005, 01:20 PM   #3
dabum8u
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I'm not sure about the gasket, he didnt mention it to me. He also put Weatherpro coolant in there, and from what I googled, it is low silicate and for aluminum radiators.
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Old 10-30-2005, 04:12 PM   #4
dabum8u
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I went outside and added distilled water into the radiator and overflow resevior and it took about 2 liters. I tried burping the hoses as described in the FAQ, some bubbles came out. Which hoses am I suppose to burp? Upper, lower and the small one that leads to the resevior?

I was thinking that the leak comes from the lower hose since it is on the drivers side of the car. The only thing is, it looks like it is attached properly under my car. I don't really want to pull the hose off and then reattach it unless I have to b/c the then I'd have coolant everywhere.

Anyone got any ideas?
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Old 10-30-2005, 05:03 PM   #5
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With the water in the car run it to get it up to temperature. It's probably not going to leak whenever it's not under pressure. Get the car up to operating temperature and check for a leak then.

Your coolant temp sensor is under the intake manifold on the top of the engine. Thats the sensor that sends feedback to the gauge inside your car. If it didn't overheat on the gauge then most likely you are ok. I would hose the underside of your car off and fill it with water to begin with. Start the car and turn the heater on high to the floor setting. Keep adding water until the radiator is full. Put the cap back on and check for leaks. If it puked out that much coolant over 1-2 hours, a leak should be visible. But I would start with water, it's safer for the enviroment and its a lot cheaper than coolant, just to see where the leak is coming from. Then once you figure that out, fix the leak, drain the system and then add a 50/50 mix of coolant and water.

Last edited by solbey11; 10-30-2005 at 06:23 PM.
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Old 10-30-2005, 07:04 PM   #6
dabum8u
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Thanks solbey for the help

I drove the car for about 10-15mins to walmart, checked under the car, couldn't spot a leak. After I came back from shopping, i checked under the car again and there was no leak. I popped the hood and the reservior was right at the max line, exactly where I had originally filled it up to. Opened the radiator cap, there was still fluid inside. The upper hose was still hot but the lower one wasn't. I drove back home and checked the a leak again, couldn't find anything. Popped the hood and the coolant reservior was past the max line, upper hose still hot, lower one relatively cool. I waited about 30 mins, checked the fluid levels again, the coolant is back at the max line and there is still coolant in the reservior.

When you turn on the car, does the water pump automatically start cooling the engine? or does it do that only when the engine gets hot enough. I did notice that after driving on the freeway, my radiator fans were running and kept running until I shut off the car (about 10 mins total). I sat in my car for 5 mins idleing, waiting for the fans to stop but they didnt. Its not really hot outside right now either, only about 72F. The temperature on the gauge never jumps either, stays right below the halfway mark. I dont know if i'm being paraoid of if there is actually a problem.
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Old 10-30-2005, 08:18 PM   #7
dabum8u
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This is a pic under my car of the lower hose. The bottom left is going to the radiator, top left is going towards the water pump.

I was wondering at #1, should the hose go all the way to the bump on the pipe? Or is that ring just part of the manufacturing. Was also wondering if that pipe at #2 suppose to be there to help the tube turn or if it is a patch of some sort.
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Old 10-30-2005, 09:57 PM   #8
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#1 should be pushed back as far as it can go. It looks like it need pushed back a little bit farther. #2 that is just a rubber outer sleeve for more protection. As your your water pump, it circulates coolant as long as your engine is running. It runs off your timing belt. The air passing through the radiator is what is actually cooling your coolant. Do you know if your cousin spilled coolant at any point? If it's not leaking now that's kind of strange. And it may be possible he spilled some, and you are low in coolant because it wasn't "burped" out properly. I would keep driving it, but check it after every trip to make sure nothing is leaking. Good luck.
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Old 10-30-2005, 10:00 PM   #9
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and about the fans, 10 minutes seems pretty long. Normally they cycle on and off over 10 minutes. Not run solid. You may want to look into that.
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Old 11-03-2005, 12:45 AM   #10
dabum8u
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if the thermostat is installed backwards, would it cause all the radiator fan to constantly be on and also may cause a leak?
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Old 11-03-2005, 03:01 AM   #11
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Quote:
Originally Posted by dabum8u
if the thermostat is installed backwards, would it cause all the radiator fan to constantly be on and also may cause a leak?
I don't think it can be installed backwards. It just won't fit correctly. But then again, that may be your leak...
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Old 11-03-2005, 04:10 PM   #12
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You can install the thermostat backwards. If you did no coolant would flow.

Fans will come on if you have the AC or Defroster on (Basically any setting that engages the AC Clutch)

The overflow tank fill level will go up and down a little as the car warms also varies based on the rpms of the engine. RPMs go up = Water Pump spins faster causing a little more pressure to be generated = more coolent burped out into the overflow tank. Once it cools or the RPMs go down it will create a vaccum sucking the coolent back into the stream causing the overflow tank level to drop to normal.

That lower hose definitely doesn't look right for one.

Secondly there is a lip on the neck both the radiator connection neck and the engine connection neck. The hose should fit securely over the lip as far as possible and the clamp should fit further up.

If the car is acting fine now I wouldn't worry about it. When you pull cooling hoses off fluid goes everywhere.

Brad
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Old 11-03-2005, 11:19 PM   #13
Mike Wevrick
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Quote:
Originally Posted by solbey11
Do you know if your cousin spilled coolant at any point? If it's not leaking now that's kind of strange. And it may be possible he spilled some, and you are low in coolant because it wasn't "burped" out properly. I would keep driving it, but check it after every trip to make sure nothing is leaking. Good luck.
Makes sense. He probably spilled a bunch on the car doing the work and then didn't take the time to fill it up completely.

One way to check for leaks is to have it pressure-tested.
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Old 11-04-2005, 10:29 AM   #14
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Another thing about the coolant temp sensor- it's at the highest point in the system- if you have an air bubble, it can be trapped at the sensor. The gauge won't read you overheating and you can be wrecking your motor at the same time if that happens .


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Old 11-05-2005, 06:22 AM   #15
garie
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^^ouch why did they design it that way?

maybe your cousin just did a crappy job when adding coolant. Didn't pour enough in because he didn't burp it properly.

does the 99 outback only have 1 radiator cap on the reservoir? If so you have to slowly add and burp at the same time....a pretty slow process.

go yell at your cousin
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Old 11-05-2005, 03:12 PM   #16
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Because in theory the hottest "standard" temperature (ie: not right at the cylinder or just the other side of the radiator) the coolant will likely get is there .


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Old 11-08-2005, 02:54 AM   #17
dabum8u
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car overheated today, 5 mins after i started driving it. I was on the freeway and noticed that my temp was starting to creep towards H. 4/5 of the way, I turned on my heater full blast and the temp dropped back down to the middle. I got off the freeway and pulled over, leaving the car running, popped the hood. Radiator fans were running full blast, and left the heater on full blast. Checked the coolant reservior, there was still coolant and it was at the max line. Then the radiator fan stopped. Looks like I don't have the constant radiator fan on problem anymore, but I'm thinking it may be because I had my heater running full blast. Outside temp 65F, raining. I guess I'm gonna have to head over to my cousins and have him fix the problem
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Old 11-12-2005, 06:00 PM   #18
dabum8u
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just an update
brought in the car to my cousins. he changed the thermostat to an oem, problem solved!
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