Question about 1995 Subaru Legacy

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Excessive water pressure in radiator causing overflow tank to overflow in 1997 7.3 powerstroke

Coolant overflows and overflows the overflow tank

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  • Subaru Master
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Have a compression test done as that will most likely be a blown head gasket or cracked head allowing combustion pressure into the cooling system. A quick check is to remove the radiator cap and fill right to the top . Run the engine and if you see small bubbles in the water or it tends to belch out then it will be the gasket of cracked.

Posted on Mar 18, 2014

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Posted on Jan 02, 2017

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SOURCE: '97 subaru overheating

head gasket most likely.

Posted on Aug 31, 2008

5LTRBTR
  • 196 Answers

SOURCE: 1997 Subaru Legacy radiator selection

the coolant sensor is located in the coolant pipe under the right side intake manifold runner.

Posted on Dec 18, 2008

prettycoolch
  • 13 Answers

SOURCE: engine and radiator overheating c

typically it will be a bad thermostat, which is a easy fix. refer to your car repair manual for easy instructions

Posted on Mar 14, 2010

  • 1 Answer

SOURCE: my subaru 1996 250t non turbo over heats after

the most common problem with subaru engines is the exaust gas escaping the cylinder into the coolant through microscopic cracks in the gasket...

the tell tale sign is to check the coolant reserve tank when the car is hot, if it has foamy bubbles in the plastic reserve tank ( do not open the radiator! ) then thats a sure sign of gas escaping the coolant...

hot gas in the coolant reduces the cooling effect obviously, and the long term effect is bearing wear which would require an engine rebuild.

the head gaskets are on the sides of the engine, so a gasket change requires an engine removal from car-

$1000 fix ( few hundred for a nice gasket, and a few hours labour )

alot of mechanics don't believe it and start replacing hoses, sensors engine parts etc

don't go down this route, it WILL COST -

check for gases in the coolant

Posted on Apr 17, 2010

  • 1340 Answers

SOURCE: hi there my subaru station

Definitely at least try a thermostat.Seeing how you did the pump already,if it still happens after a thermostat,this is going to be an issue.Good luck! Greg How quick does it overheat?If it's pretty quick thermostat.If it's gradual and you can go like 40 miles before it overheats it could be a loose belt.

Posted on Aug 14, 2010

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1 Answer

The overflow need to be filled with water?


Yes, it is important to include the overflow tank or bottle as integral with the radiator and coolant system as a whole. They all intermix. Actually, the level in the overflow tank is a true measure of the correct amount to keep your coolant at. There are two marks on the overflow: full hot and full cold. The coolant system on all modern cars is a sealed system and therefore should never require adding, save a very small amount through evaporation within the overflow tank- the only part that is open to atmosphere.

So once you get all the air out of the system that is possible, both in the engine and in the radiator, you have a full level everywhere, including the overflow tank where it should always remain somewhere between the full hot and full cold marks.

You are right that the overflow collects the heated radiator coolant. But it is due to the expansive properties of coolant-or water- that it expands when heated, (but not boiling-that is very bad news of a different sort). Your radiator cap is designed to open at a specific pressure, just enough to allow coolant to flow into the overflow. As the engine and coolant cools, it contracts, the level drops in the radiator, and a natural vacuum there will siphon the overflow tank back into the radiator until it is full again. That is why you have the full hot and full cold marks.
I will shut off the lecture now. I hope you have liked my answer. If not, I give you permission to kill me now- if I may so jest.

Mar 06, 2015 | 1992 Toyota Corolla

2 Answers

Can a water pump make water to return to the water bottle


If the engine overheats from a thermostat
stuck closed or bad head gasket

Aug 10, 2013 | Cars & Trucks

1 Answer

Not pulling coolant from overflow jug


Pressure testing just tests that the radiator cap resists a certain amount of positive pressure. I assume you are saying that it is not drawing back from the overflow when the engine cools down. It is likely that the coolant is being blocked right inside the overflow jug by some dirt or debris. Remove the overflow jug and clean it out - and clean the overflow hose too, in case it is obstructed.

Nov 28, 2011 | 1997 Honda Civic

1 Answer

Need to find the source of the excessive amounts of coolant leaking from the front-passenger side of the radiator/fan area. I found a tube that is connected on one end but not the other that I am currently...


It's probably the radiator overflow tank hose. It is supposed to be connected the the coolant overflow tank and also the other end at the radiator, next to the pressure cap. It allows excess coolant to escape the radiator if necessary and also to **** in coolant if needed.

Sep 15, 2011 | 2000 Jeep Grand Cherokee

2 Answers

Where do u put the water in on a colt? Can't find it?


A tank used for storing excess coolant; connected to the cooling system with a small-diameter overflow hose.

The coolant reservoir is the bottle,under the hood, that holds the radiator fluid. it is also known as a overflow bottle. When the car gets hot,the overflow bottle, releases steam to relive the pressure in the radiator. excess coolant is also stored here.

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I hope this helps, Mike from fixya.

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Aug 07, 2011 | Mitsubishi Colt Cars & Trucks

2 Answers

1999 buick centry overheating overflowing the overflow


Until you get it figured out use regular water. Replace thermostat and radiator/coolant tank caps. Thermostat regulates pressure in the motor and allows radiator to cool. Caps regulate atmosperic pressure. Either or both being bad will cause you system to siphon and fail.

May 01, 2010 | 1999 Buick Century

1 Answer

93 lincoln mark v111 antifreeze radiator, how do i bleed air out of rad, coolant from coolant bottle into radiator?


When you top off the radiator you fill it to the neck where the cap goes. When the engine heats up the antifreeze eventually will distribute and the excess will go into the overflow bottle.

After the car cools, it will draw the antifreeze from the overflow tank into the radiator. Then check the level line on the overflow bottle(tank) for the normal amount of antifreeze per marks on the bottle.

You should have your radiator cap checked for its pressure rating. Use the type of cap which allows for an overflow system. The older caps would not let the antifreeze flow both ways.

Mar 26, 2010 | 1998 Lincoln Mark VIII

1 Answer

I have a 2001 chevy Malibu. Have problems with


Due to the complexity of the newer cars on the raod today!! what you are experiencing is Normal!!! since the coolant systems on the newer cars run at such a higher pressure and a high Rpm the reserve tank which has it's on drain hose for excessive overflow from the radiator allows the extra high pressure release from the radiator to back flow to the reserve tank and then out the reserve tank overflow hose on to the raod

Jan 17, 2010 | 2000 Chevrolet Malibu

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