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

103,255

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

7,560

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.

103,255

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

7,560

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.

103,255

Gurgling sounds = air in the system.

1 people found this helpful.
7,560

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 people found this helpful.
Best Answer Mark helpful

Your Answer

Forester

Looking for a Used Forester in your area?

CarGurus has 34,359 nationwide Forester listings starting at $1,495.

ZIP:

Subaru Forester Experts

  • #1
    Nick Eidemiller
    Reputation
    4,140
  • #2
    Chris W
    Reputation
    3,580
  • #3
    lifeson34
    Reputation
    2,860
View All

Related Models For Sale

Used Subaru Outback
300 Great Deals out of 39,328 listings starting at $1,500
Used Honda CR-V
479 Great Deals out of 72,005 listings starting at $1,300
Used Toyota RAV4
425 Great Deals out of 74,147 listings starting at $1,995
Used Subaru Impreza
176 Great Deals out of 21,588 listings starting at $1,919
Used Subaru Legacy
150 Great Deals out of 12,875 listings starting at $1,240
Used Toyota 4Runner
281 Great Deals out of 32,849 listings starting at $950
Used Ford Escape
975 Great Deals out of 108,545 listings starting at $850
Used Toyota Highlander
380 Great Deals out of 48,090 listings starting at $1,500
Used Toyota Tacoma
439 Great Deals out of 44,078 listings starting at $1,995

Used Cars For Sale

2018 Subaru Forester For Sale
26 Great Deals out of 25,165 listings starting at $19,710
2017 Subaru Forester For Sale
51 Great Deals out of 1,401 listings starting at $15,900
2016 Subaru Forester For Sale
26 Great Deals out of 1,136 listings starting at $13,599
2015 Subaru Forester For Sale
58 Great Deals out of 2,514 listings starting at $10,967

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.