Question about 1998 Subaru Forester

2 Answers

1998 subaru forester temperature guage fluctuates

Would a pin hole leak in the radiator that can't be detected cause this to happen? The guage goes to high dangerous heat levels for a few seconds and then goes back to normal. The mechanic says thermo fine and burped the air out several times. What the hell?

Posted by on

2 Answers

  • Level 2:

    An expert who has achieved level 2 by getting 100 points

    MVP:

    An expert that got 5 achievements.

    Sergeant:

    An expert that has over 500 points.

    Champion:

    An expert who has answered 200 questions.

  • Expert
  • 293 Answers

Blown head gasket or cracked head will put air in your cooling system, if this air forces water away from your temp guage the water will get hot without raising the needle until your senser gets wet again then it will rise rapidly, replace your head gaskets and while the heads are off have them crack tested and surface ground, every time any alloy head is removed, It should be resurfaced to improve sealing of the new head gasket

Posted on Nov 28, 2013

  • Level 2:

    An expert who has achieved level 2 by getting 100 points

    MVP:

    An expert that got 5 achievements.

    Sergeant:

    An expert that has over 500 points.

    Champion:

    An expert who has answered 200 questions.

  • Expert
  • 208 Answers

First make sure the fan is comming on when it gets warm. i would replace the thermostate any way whats 12.00 now vs 2,800 to replace the engen latter. also i would change out the sending unit that goes to the cluster. also disconect the neg. side battery and turn the fan by hand it should spin very easy i belive this vehicle has 2 fans. if they turn frely reconet thr battery start the vehicle turn on ac if both fans do not come on you may have a bad fan relay good luck.

Posted on Nov 28, 2013

5 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

  • 42 Answers

SOURCE: 1998 subaru forester leaking water

Where is the water coming from? Start the engine and have a look! Make sure you dont't have loose clothing and hair ! Probably a pipe leaking!

Posted on Dec 07, 2009

  • 770 Answers

SOURCE: 1998 Subaru Forester Overheating, top of guage.

An overheating issue can be caused by a few different things, the most common cause of overheating is a sticking thermostat..it is a $7 part that is very easy to replace, it needs to be eliminated from the mix. Second most common would be a faulty water pump, this is usually characterised by a leak at the pump itself. If you are loosing coolant, you need to make sure it is not getting into your oil, you can check the dipstick for bubbles or a milky looking sludge. This can be caused by a cracked head or blown head gasket, these conditions are usually caused by the overheating itself, so if this is not the case, be careful and do not let it get too hot! The other thing that can cause an overheating issue would be a clogged radiator. The fan issue is problably not causing your problem, because at 35 miles per hour, enough air is being forced thru the radiator to effect cooling. The fans are good for when your car is sitting still. The electric fans are controlled by a coolant temp sensor. Good Luck! I hope you find this to be very helpful!

Posted on Feb 18, 2010

Rebgagnon
  • 382 Answers

SOURCE: 97 Subaru Legacy, 142,000 miles. Temp Guage

Sounds like the Coolant is not full and has a air bubble. It is very important to have the system filled complete. That would be the first step.Good luck and have a great day.

Posted on Feb 25, 2010

  • 972 Answers

SOURCE: 1998 subaru forester temperature gage goes up then

could be a sticky thermistat. they are cheap so i would change it anyway at least you will know it isnt that

Posted on Mar 25, 2010

Add Your Answer

Uploading: 0%

my-video-file.mp4

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

×

Loading...
Loading...

Related Questions:

1 Answer

Where is the outside air temperature sensor located on a 2005 subaru forester


they are mounted to the lower radiator support rail. You have to remove the bumper cover (read plastic outside bumper) to replace them.

May 21, 2014 | 2005 Subaru Forester

2 Answers

P0106 Subaru Forester


Go to any mechanic with a code reader. They will plug it in and find the code that will have been set in the cars computer. This code can be looked up by the mechanic to find out wat the problem is. You need to do it NOW!
Regards,
Andy

Nov 12, 2012 | 1998 Subaru Forester

1 Answer

My 1998 subaru forester keeps heating up. We have changed the thermostat, put new head gaskets on, and a new water pump. The cap still heats up. The gage goes the whole way up. We have checked for air in...


Subarus tend to block their radiators. Often there is only 10% or less flow. The radiator needs to be taken out and have a radiator shop strip and rod out the core tubes or fit a new or recored radiator.

May 02, 2011 | 1998 Subaru Forester

2 Answers

1998 cadillac deville leaking coolant, temperature was around 196 and when leaking started temperature has gone as high as 225, what is causing this problem?


This most certainly sounds like a water pump issue. The thermostate is located inside the water pump housing and if the pump is bad you'l lose fluids and need to add every day or so. The temp guage will run hot and often the heater won't warm up. You have even notice fluids on the ground below the front passenger side of the car. Try getting a pressure test first before replacing anything. That's a good place to start the diagnosis.

Dec 15, 2010 | 1998 Cadillac DeVille

2 Answers

Fluctuating hot water gauge for Subaru Baja


check your coolant level, its may be low causing the fluctuatiion also the loss of heat. if its ok replace your thermostat its not regulating tempature right

Feb 27, 2010 | 2001 Subaru Forester

2 Answers

1998 Subaru Forester Overheating, top of guage. Smoke or ste.m coming from radiator area. Temp guage went to top! Added anti-freeze, car ran fine for next 10 miles (or less). Appears that radiator fan is...


You 're in the right area. Just try to see where the leak is coming from. If the fan has quit, then it very well could be the problem.If stem is coming out it may have a split or hole in the radiator. But again it can be a simple overflow tank CAP. If these have no psi rating left, the the hot water will go somewhere and the the CAP is the weakest point. This will cause it to be hot and stem to come out.

Feb 18, 2010 | 1998 Subaru Forester

1 Answer

Temperture fluctation


Generally the temperature fluctuates due to a leak in the cooling system.

The cooling system operates similar to a pressure cooker, with everything sealed, for each pound of pressure on the system, the engine can increase the temperature above the boiling point by 7 degrees without boiling. This is why when a hose breaks, the temperature gauge generally goes all the way up & you will hear boiling if you open the hood & inspect the area as it occurs.

If you lose a pound (more or less) of pressure, even with antifreeze, due to the pressure the system is under, the temperature will rise.

So, when there is even a pin hole sized leak, a gasket that occasionally leaks, a radiator cap that isn't actually holding the correct pressure-all of these things will cause the pressure to drop & an immediate change in the temperature making it hotter and as it re-seals itself, the temp will decrease again. There are a lot of particles floating through your cooling system and these particles sometimes will plug a leak until pressure pushes it out later.

Generally a leak is iindicated by the temp gauge rising higher than ever before. To resolve this, a pressure test will be necessary unless you replace the radiator cap & find it is no longer fluctuating.

Also, this doesn't have to happen each time you drive. Seals leak when they want to & that's all I can say about that. Usually they will reach a point where they will want to leak all of the time but finding them has to be done while they are in fact leaking.

good luck

Feb 11, 2010 | 2005 Ford Explorer Sport Trac

1 Answer

1998 subaru forester leaking water


Where is the water coming from? Start the engine and have a look! Make sure you dont't have loose clothing and hair ! Probably a pipe leaking!

Dec 07, 2009 | 1998 Subaru Forester

1 Answer

I have purchased a thermostat, water pump, and radiator. Then after all this a hose blew off, then eventually the radiator had holes in it. I took it back to where I bought the radiator and they replaced...


Sounds like bull sh*t to me. the only thing to look for is constant air bubbles when the engine is hot and the radiator cap is left off
(this would mean you had a leaking head gasket. If there was to much pressure the the radiator cap would leak steam before anything else blows. Are these secondhand radiators your trying? as they sound like rubbish if the hose blew it's most likely from a blocked secondhand radiator which needs to be repaired. Don't trust dodgy car wreckers. cheers

Mar 31, 2009 | 1998 Subaru Forester

Not finding what you are looking for?
1998 Subaru Forester Logo

94 people viewed this question

Ask a Question

Usually answered in minutes!

Top Subaru Experts

yadayada
yadayada

Level 3 Expert

75117 Answers

Colin Stickland
Colin Stickland

Level 3 Expert

22095 Answers

Jeff Turcotte
Jeff Turcotte

Level 3 Expert

7772 Answers

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

Answer questions

Manuals & User Guides

Loading...