I have a2001 outback...My wifewasdriving this morning and the car ran hot...Sheput the heat on high audit cameo normal temps...When she got home and after it cooled down, I opened the. Cap on the radiator and it was full but the over flow was empty...Would the empty over flow cause that to happen???? Please help!!! It's our only transportation ...

130

Asked by Feb 21, 2015 at 09:02 AM about the 2001 Subaru Outback Base Wagon

Question type: Maintenance & Repair

Car running hot but never over heated

14 Answers

39,805

No. But your radiator was low on fluid for some reason. When it cooled down, it sucked the fluid from the reserve jug. That's why your reserve jug was empty. Refill reserve jug and keep and eye on it. Pull your oil dipstick and make sure the oil isn't all milky. The fluid went someplace. If you notice it getting hot again, you may want to replace your thermostat. Keep an eye on your exhaust also. If you notice that it's very white and thick, that means you're burning coolant. If your burning coolant or you have milky oil, that means your head gasket is shot.

1 of 1 people found this helpful.
6,565

^^ditto. You could also look underneath the engine to see if you are leaking coolant, causing an air bubble inside the cooling system, from one of the cylinder heads, water pump, oil cooler (automatic) hoses, etc.

130

If anything it has to be leaking from somewhere....Had the heads replaced last year with new water pump, timing belt/chain....But with this weather being 2 degrees maybe I have a cracked hose or a hole in my radiator??? It's so hard to notice any leaks when we have a foot of snow on the ground...I'm gonna place a piece of cardboard under my car and fill the over flow then let it run....Maybe, just maybe the water is defective and it ent bad????

39,805

If you actually have water in the system, then yes, something probably cracked and broke. You should be running a 50/50 mix of water and anti- freeze. If you were running anti-freeze and water, you may want to buy a cheap tester and sample what's in your radiator. The tester should tell you the freeze temp of your mixture.

130

I am using a 50/50 prestone antifreeze....Someone said maybe the therosate is sticking causing the over flow to boil over???? Is that a possibility????

39,805

If it's the original thermostat, yes, there's a good chance that it's going bad. Sometimes the radiator cap itself goes bad and the coolant leaks from under the cap. Did you narrow down the leak yet?

130

Not seeing any leak....I will try running the car for a good 20 mins then see it any changes

1 of 1 people found this helpful.
20,435

I'm sure it's not the original thermostat, the car's almost 15 years old. Possible, but unlikely. Is it the original? How many miles are on your car?

130

I started the car today, filled the over flow back up, topped off radiator, let it run parked for about 1 hour with the heat off...I wanted to see if when the engine gets hot that the fan kicks on ( and it did )....So then I took it for a long ride and the car never ran hot! We are changing the therosate tomorrow or at least taken it out and checking it to see if it opens and closes....Lets see what happens......The only other thing I could like is there was a block of ice under the front bumper and maybe, just maybe it stopped the fan from turning until it melted.....

1,005

you could also try some of the dye stuff you can put in the radiator with a black light and see if there is a leak it is a a great way to spot a leak

130

Isn't there a way to check the radiator feeling it to see if it hot or cold?????

130

So far I did everything I thought was the right thing to do....The only other thing I can do is have a mechanic check the pressure in my radiator....I'm a women and I think I pretty much covered everything but that! If I put dye in the radiator it's not as good as doing the pressure check itself....Plus I am changing out the therosate either way....whether it's good or bad

39,805

Just change the thermostat and call it good. If the car doesn't over heat again, I wouldn't bother spending money on a pressure test. If you ran it for 20 minutes and you found no leaks, I would stop there. If you bring it in for a pressure test, you may get scammed into spending a ton of money on something you don't need.

1 of 1 people found this helpful.
20,435

I imagine that someone who has knowledge told you your thermostat needed replacement. If so, do that first and see if this remedies your problem. If not, get another opinion from an independent garage, find a reference if you can. A good diagnosis is money well spent before making unnecessary repairs.

Your Answer

Add photo

Related Questions

Outback

Looking for a Used Outback in your area?

CarGurus has 40,752 nationwide Outback listings starting at $1,395.

ZIP:

Search Subaru Outback Questions

Subaru Outback Experts

#1 Markw1952
Markw1952
Reputation 7,370
#2 TheSubaruGuruBoston
TheSubaruGuruBoston
Reputation 2,300
#3 F_O_R
F_O_R
Reputation 2,030
View All

Related Models For Sale

Used Subaru Forester
413 Great Deals out of 32,510 listings starting at $995
Used Subaru Legacy
244 Great Deals out of 12,619 listings starting at $1,399
Used Subaru Impreza
215 Great Deals out of 19,037 listings starting at $1,100
Used Honda CR-V
980 Great Deals out of 57,313 listings starting at $1,000
Used Toyota RAV4
900 Great Deals out of 64,318 listings starting at $1,990
Used Toyota 4Runner
225 Great Deals out of 19,106 listings starting at $1,500
Used Toyota Highlander
373 Great Deals out of 26,278 listings starting at $2,500
Used Toyota Tacoma
516 Great Deals out of 43,168 listings starting at $1,995
Used Honda Accord
1,046 Great Deals out of 68,867 listings starting at $1,000
Used Jeep Grand Cherokee
1,068 Great Deals out of 73,682 listings starting at $1,200
Used Subaru Impreza WRX
66 Great Deals out of 1,367 listings starting at $3,500
Used Ford Escape
1,366 Great Deals out of 84,721 listings starting at $995

Used Cars For Sale

2017 Subaru Outback For Sale
42 Great Deals out of 30,024 listings starting at $20,965
2016 Subaru Outback For Sale
59 Great Deals out of 1,139 listings starting at $17,991
2015 Subaru Outback For Sale
76 Great Deals out of 1,678 listings starting at $10,499
2014 Subaru Outback For Sale
47 Great Deals out of 1,569 listings starting at $8,988
2013 Subaru Outback For Sale
36 Great Deals out of 971 listings starting at $7,988

Content submitted by Users is not endorsed by CarGurus, does not express the opinions of CarGurus, and should not be considered reviewed, screened, or approved by CarGurus. Please refer to CarGurus Terms of Use.