Question about Subaru Cars & Trucks

Open Question

At high altitudes, my 1999 subaru legacy outback is overheating at idle

I have been driving my 1999 subaru, 2.5L across the country from SC and when I stopped for food it overheated and was idling really rough. I am now neat Denver, CO

Posted by Anonymous on

6 Suggested Answers

6ya6ya
  • 2 Answers

SOURCE: I have freestanding Series 8 dishwasher. Lately during the filling cycle water hammer is occurring. How can this be resolved

Hi,
a 6ya expert can help you resolve that issue over the phone in a minute or two.
best thing about this new service is that you are never placed on hold and get to talk to real repairmen in the US.
the service is completely free and covers almost anything you can think of (from cars to computers, handyman, and even drones).
click here to download the app (for users in the US for now) and get all the help you need.
goodluck!

Posted on Jan 02, 2017

  • 4 Answers

SOURCE: overheating

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

  • 1779 Answers

SOURCE: '90 Subaru Legacy overheating....

cool air and overheating point to low coolant level. Do you have a bleeder valve near the thermostat? You may have air trapped in the system. If no air trapped, the radiator may be plugged up not allowing proper circulation of coolant.

Posted on Mar 24, 2009

emissionwiz
  • 75814 Answers

SOURCE: rough idle low altitude

the carb is dirty, high allitude yields less air and more fuel, a richer mixture, overhaul the carb.

Posted on Oct 01, 2009

Obertelli
  • 3006 Answers

SOURCE: Have a 1999 subaru outback legacy it warms up for

The coolant is going somewhere, and a possible explanation is that it's going out in your exhaust gases due to a failed cylinder head gasket.

Check the oil for any mayonnaise; this may be present under the oil cap or on the dipstick: it's emulsified coolant and oil and is pretty obvious. Also get the car "sniff-tested" by a garage. This is a cheap simple test where they take a small sample of coolant and shake it in a tube with a little reagent. If there are exhaust gases in the coolant there's a colour change and it confirms a blown gasket.

Get this done immediately. A failed head gasket is expensive enough to start with, but it will not fix itself and the bill for damage to other parts only increases steeply if left unattended.

If the tests prove negative then you may have a hole in the radiator or pipes somewhere, if the coolant escapes as steam then you won't necessarily have any puddles. Although this fault is far cheaper to fix, the overheating it causes is the main cause of head gasket failure so again you need to get this checked and fixed without delay.

Posted on Mar 12, 2010

  • 1 Answer

SOURCE: 1998 Subaru Legacy Outback--Rough Idle

I have the same problem!Running on three.I have checked compression,wires,plugs.Changed injecters,plugs.
3 mech.cant figuire it out???

Posted on Aug 01, 2010

Add Your Answer

Uploading: 0%

my-video-file.mp4

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

×

Loading...
Loading...

Related Questions:

1 Answer

For a 1999 Subaru Legacy does it have just the screw on transmission filter or is there also one in the pan?


I have a 99 Subaru Legacy Outback wagon also. I just changed my fluid & filters. There is a spin-on AND a bolt-in that's inside (you have to drop the pan).

Apr 03, 2010 | 1999 Subaru Legacy

1 Answer

1998 Subaru Legacy Outback--Rough Idle


I have the same problem!Running on three.I have checked compression,wires,plugs.Changed injecters,plugs.
3 mech.cant figuire it out???

Nov 21, 2009 | 1998 Subaru Legacy

1 Answer

My 1999 subaru parking lights will not turn off


the rocker switch on top of your steering column is on.

Aug 26, 2009 | 1999 Subaru Legacy

1 Answer

1999 Subaru Legacy Outback 5th gear popping out


WELL IT SOUND LIKE YOUR TRANS IS GOING DOWN YOU NEED TO LOOK AT TRANS FLUID TO SEE IF IT IS CLEAR LOOKING OR IS IT LOOK LIKE METAL MAY BE IN IT DRAIN A LITTLE IN A PAN THE LOOK AT IT IN SOME LIGHT AND SEE IF IT LOOKS LIKE GOLD FLAKES OR SHING METEL IF SO TRANS HAS INTERNAL ISUSES

Aug 13, 2009 | 1999 Subaru Legacy

1 Answer

Water in front blinker 99 subaru outback


After removing housing there are 2 clips top and bottom that release the lens. Make sure and use sealant when reinstalling. Good luck and have a great day.

Jun 27, 2009 | 1999 Subaru Legacy

1 Answer

Replace passenger mirror 1999 subaru outback


you need to remove door panel to unplug miroor connection

Jun 04, 2009 | 1997 Subaru Legacy

Not finding what you are looking for?
Cars & Trucks Logo

Related Topics:

22 people viewed this question

Ask a Question

Usually answered in minutes!

Top Subaru Experts

yadayada
yadayada

Level 3 Expert

75807 Answers

Colin Stickland
Colin Stickland

Level 3 Expert

22133 Answers

Jeff Turcotte
Jeff Turcotte

Level 3 Expert

8172 Answers

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

Answer questions

Manuals & User Guides

Loading...