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Why is my 2012 Subaru Legacy overheating?

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2012 Subaru Legacy 2.5i Automatic CVT Transmission

Hey Scotty, as you see by the title I own a Subaru, I recently replaced my thermostat and my car is still over heating. I have ran a hose through the radiator and there’s no leaks. Radiator was replaced 60k miles ago from the last owner. I’m considering that my thermostat is getting stuck but if that’s not it, what do you think?

5 Answers
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Posted by: @sages

what do you think?

Start here - 

only one of my fans work and i just replaced my thermostat, my radiator cap has 0 rust and springs seem to be fine, made sure the thermostat can close. You think that one fan is making it so it over heats? also i made sure there was no oil in my anti freeze.

1. Does it overheat when you’re stopped at a red light, or when going 60mph on the highway? 2. It’s a 10 yr old radiator cap which costs $7 - https://www.subaruparts.com/oem-parts/subaru-radiator-cap-45137ae00b 3. Pressure test the radiator like Scotty shows. Just because it doesn’t leak, doesn’t mean it’s cooling efficiency is still within spec. Let us know the results.

Ill deff order a new cap for the hell of it and it over heats parked. It is a new radiator, ive been runnin it for 40k miles but ill be doing a pressure test asap.

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1.  Thermostat

2. Radiator cap

3. Water pump

4. Fan(s)

5. Temperature sending unit

6. Properly bleed air from system

New radiator cap on, new thermostat, my thermostat opened snd now my car is getting water from the thermostat and pump but my fan isn’t working, any thoughts on how to fix the fan?

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Check for proper function of your fan control module, Subaru #45132AJ000.

Link a video?

I tested the fan wire and its getting no power to it. replaced/checked all fuses to the fan. Only time my one of them works is when i turn my ac on. Btw i tried to look up a video my fan control module for my car and found no results. Any ideas. 

The number I gave you above is the Subaru OEM part number.

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Posted by: @sages

New radiator cap on, new thermostat, my thermostat opened snd now my car is getting water from the thermostat and pump but my fan isn’t working, any thoughts on how to fix the fan?

Hot-wiring the fan directly to 12 volts to see if it's working might be a good start. If the fan itself works start tracing back through the circuitry to find the fault.

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https://parts.subaru.com/p/Subaru_2012_Legacy/Engine-Cooling-Fan-Controller/49251946/45132AJ000.html

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