Question about 1999 Subaru Legacy

3 Answers

Overheating I have a 1999 Subaru Legacy outback 2.5L. It keeps overheating. I've changed the thermostat, water pump. Checked radiator for pressure and leaks and nothing is wrong. Where should I go from here. No one seems to know what the problem is. Debbie

Posted by on

  • 1 more comment 
  • tbugbee Dec 12, 2008

    My car is randomly overheating. The car runs perfectly and then it is like the flow of antifreeze is completely stopped. I let her cool down and am good to go again???????

  • Anonymous Jan 15, 2009

    I've got a similar problem with overheating: temp gauge goes up to the top, then a few mins. later to the mid point, then back up again at very slow driving speeds( with fan and heat set on high). This has just happened in the last 24 hours, car has been extremely reliable until now, at 160,000. m.
    There is no other evidence of damage to the engine block; no smoke, no foam in the oil cap, no changes in engine operation. I have not flushed the antifreeze, ever, though have changed the water pump one time( perhaps at100,000)and the fans and belts appear to be functioning normally. It is now very cold outside! Any ideas anyone?


  • julie carpenter
    julie carpenter Jan 03, 2014

    My '99 has been doing the same thing. Yesterday the engine light came on and it stalled several times after checking coolant and oil. I attempted to drive back home after letting it cool for an hour and then "poof" steam started pouring out of the hood. The steam was coming out of a hose on the left side of the radiator. I don't know if it is an intake or exhaust tube....I came to this sight to find out.

×

3 Answers

  • Level 1:

    An expert who has achieved level 1.

    Corporal:

    An expert that has over 10 points.

    Mayor:

    An expert whose answer got voted for 2 times.

  • Contributor
  • 4 Answers

The 97-99 2.5L DOHC Subaru engines were notorious for this problem, blown head gasket is very likely the cause. It is possible to test for the presence of exhaust gas in the coolant to verify. The reason the car seems to be overheating then cools down quickly when shut off is that the hot exhaust gas displaces the coolant at the top of the engine where the sensor is. If it happens consistently you will need to deal with it, I have worked on an engine that was run many miles under this condition and it damaged the block beyond repair. If you are a decent shade-tree mechanic, it is possible to do the work with the engine still in the car, you will have to raise it up an inch or two to get sufficient access. I have personally done 3 engines with this problem, a 98 and 2 99's.

Posted on Jan 19, 2009

  • Level 1:

    An expert who has achieved level 1.

  • Contributor
  • 1 Answer

I had this problem - it was a blown head gasket. Contact Subaru to see if you're car is covered by a limited recall - if not they may offer to help pay for the repair. Good luck.

Posted on Dec 10, 2008

  • Level 2:

    An expert who has achieved level 2 by getting 100 points

    MVP:

    An expert that got 5 achievements.

    Governor:

    An expert whose answer got voted for 20 times.

    Hot-Shot:

    An expert who has answered 20 questions.

  • Expert
  • 92 Answers

Check engine cooling fan operation.easy way to check is turn a/c on and fan should run when ever a/c is on.
is air flow through rad restricted(dirt,bugs) ?
is cooling system air locked ?

Posted on Oct 21, 2008

Add Your Answer

Uploading: 0%

my-video-file.mp4

Complete. Click "Add" to insert your video. Add

×

Loading...
Loading...

Related Questions:

1 Answer

1997 Subaru Outback Overheating, 129,000 miles


it sounds like the thermostat is sticking and i agree with the mechanic that that should cure the problem.If you still have plenty of fluid in the radiator that rules out a leak and if you had the timing belt replaced then the mechanic should have done the water pump along with the timing belt.So that leaves only one thing and that is the thermostat.

Dec 28, 2012 | 1997 Subaru Outback

2 Answers

Overheating subaru


If you take out the thermostat and put everything back together without it, you should see the water flowing in the radiator, if not, replace it. Assuming that the belt isn't loose or anything. But after everything you've said here, I'm saying water pump.

Jun 20, 2012 | 1997 Subaru Outback

2 Answers

1990 subaru legacy- overheats, I"ve


Most likely you put the thesmostat in upsid down. Good luck

Aug 17, 2011 | 1990 Subaru Legacy

2 Answers

The heater just quit working. It worked fine yesterday but this morning it does not. The car is running a little hotter trhan normal but not overheating. Any ideas?


I would check to make sure the radiator is full and the overflow tank is filled to the proper level. It doesn't have to be very low for these cars to stop blowing heat.

Feb 01, 2011 | 1992 Subaru Legacy

2 Answers

90 legacy, started overheating but was blowing cool air out of the heater even as the needle was pegged. Some fluid in reservoir, top radiator hose felt like it was under a lot of pressure.


Two things would cause this

There is a slow leak and the radiator is low on fluid

Let the vehicle cool down completely and then check the level in the radiator. I bet its pretty low. Top off the radiator with a 50/50 mix of coolant and water. start the vehicle and let it warm up with out the radiator cap on. Keep adding fluid as necessary. While waiting for it to warm up check around for any abvious coolant leaks. Things like hoses, radiator seams, water pump, water inlet/outlet gaskets. If no leaks are found it may be necessary to pressure test the cooling system and even then it might be a slow leak that only occurs when the vehicle is cold.

If the radiator is full than I would suspect that water pump is no longer working or creating enough flow. If the thermostat where stuck you would still get heat. If the water pump is not circulating coolant than you would get no heat and the car would overheat.

Nov 11, 2010 | 1990 Subaru Legacy

1 Answer

Overheating


Have you checked to see if the radiator fan works? And have you checked to see if the water pump works? Two very important items key to overheating.

Jun 03, 2009 | 1990 Subaru Legacy

2 Answers

1995 legacy 250t wagon - overheating


Two possiblities; a blown head gasket, or a freeze plug leaking. If possible take it to a trusted shop and have the pressure checked on the radiator, they can tell you if your radiator is stopped up, or the freeze plug is leaking, and if it's blowing back in the radiator when you remove the cap then it's a blown head gasket.

Sep 28, 2008 | 1993 Subaru Legacy

2 Answers

'97 subaru overheating


head gasket most likely.

Aug 21, 2008 | 1997 Subaru Outback

Not finding what you are looking for?
1999 Subaru Legacy Logo

955 people viewed this question

Ask a Question

Usually answered in minutes!

Top Subaru Experts

yadayada
yadayada

Level 3 Expert

60960 Answers

Colin Stickland
Colin Stickland

Level 3 Expert

21949 Answers

Jeff Turcotte
Jeff Turcotte

Level 3 Expert

6812 Answers

Are you a Subaru Expert? Answer questions, earn points and help others

Answer questions

Manuals & User Guides

Loading...