Why is our 2000 subaru forestor's temperature up sometimes and not other times?

Asked by Jul 20, 2017 at 08:02 PM about the 2000 Subaru Forester

Question type: Maintenance & Repair

Our car has been practically rebuilt in recent weeks, but the temperature gage
continues to show the car running hot sometimes, and then the needle will go
up and down.  The head gasket, thermostat, as well as several other this gas
have been changed and nothing seems to fix this,  

There is no smoke, steam, or what usually happens with a car running hot m
Please help!

8 Answers

79,395

I would suspect air in the system, a bad thermostat or cooling fans that are not working.

5,710

I initially suspect F_O_R's door number 1. When a migrating gas bubble sits adjacent the coolant temp sensor it'll spike temporarily. Elevate the front of the car a bit and have a careful purge done before spending more on parts.

Thank you for this information. One other concern is that when I accelerate the temperature will go back into the normal temperature range but also when I am at a stop light, In park, and rev the engine without moving, the temp will drop back to normal on the gouge.Your thoughts on that.

79,395

Perhaps the water pump is worn and not circulating the water as it should.

5,710

Subie's WPs are pretty golden, so I'm still with yoiur Door Number One. 96nyx: you mistyped "normal" twice; regardless, the temp gauge "pumping" is because of trapped air in coolant. Bleed the system carefully. If it won't stay bled check for outgassing because of blown head gasket. See other long threads for procedure.

Thank you for your solutions. The head gasket was changed, the water pump was changed, and the thermostat was changed twice, as well as the radiator, and cap, and the fan was working properly. Prior to the repairs being done the Temp gauge was fluctuating after warm up and driving as well as after repairs. I stupidly added head gasket sealant and followed the direction meticulously,before the repairs were made. One other symptom is I hear a 'gurgling' sound behind the A/C vents in the dashboard even without turning on the A/C. After repairs were made a po 443 Evap control solenoid error code kicked out from a check engine light that came on after repairs were done. Not sure if the last two items are pertinent to the cooling system problem. Thoughts on this. Thank you.

79,395

Gurgling sounds = air in the system.

1 of 1 people found this helpful.
5,710

Yup...sounds like an incomplete purge. Here's a weird one that you nay have contributed to via the sealant: try BACK-FLUSHING the rear heater hoses with a garden hose to clear any blockage therein. Fairly rare, but I've run into it a couple of times. With a new radiator I wouldn't expect much crap to be sloshing around there, but a solidified blockage in the rear heater hoses can cause the symptoms you describe...as would a too-small aftermarket thermostat, so check that a large-orifice OE size one was installed.

1 of 1 people found this helpful.
Best Answer Mark helpful

Your Answer

Forester

Looking for a Used Forester in your area?

CarGurus has 34,856 nationwide Forester listings starting at $1,450.

ZIP:

Subaru Forester Experts

  • #1
    Nick Eidemiller
    Reputation
    3,850
  • #2
    walth
    Reputation
    3,230
  • #3
    lifeson34
    Reputation
    2,710
View All

Related Models For Sale

Used Subaru Outback
400 Great Deals out of 34,490 listings starting at $199
Used Honda CR-V
754 Great Deals out of 55,441 listings starting at $1,750
Used Toyota RAV4
717 Great Deals out of 44,953 listings starting at $1,600
Used Subaru Impreza
205 Great Deals out of 20,336 listings starting at $2,495
Used Subaru Legacy
224 Great Deals out of 15,559 listings starting at $1,700
Used Toyota 4Runner
264 Great Deals out of 22,484 listings starting at $1,750
Used Toyota Highlander
466 Great Deals out of 29,980 listings starting at $1,900
Used Ford Escape
1,026 Great Deals out of 93,152 listings starting at $1,200
Used Honda Civic
759 Great Deals out of 69,159 listings starting at $1,499
Used Honda Accord
1,040 Great Deals out of 56,909 listings starting at $1,099

Used Cars For Sale

2018 Subaru Forester For Sale
24,443 listings starting at $19,791
2017 Subaru Forester For Sale
42 Great Deals out of 1,673 listings starting at $18,995
2016 Subaru Forester For Sale
51 Great Deals out of 1,107 listings starting at $14,400
2015 Subaru Forester For Sale
124 Great Deals out of 2,625 listings starting at $11,995
2014 Subaru Forester For Sale
34 Great Deals out of 1,115 listings starting at $9,990

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.