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I have an 05 STI. I was driving today and noticed when accelerating pretty aggressively my Rear Diff Oil Temp light came on for about a few seconds. Is this normal?? It is the first time i've seen it. No mods so far... However i do have a ~150lb subwoofer box in the trunk (which makes the car sit pretty low in the rear) that I have been contemplating taking out. Do you think if i continue this way will eventually run into problems? Should i check tire pressure? Or is this common. Any help is appreciated.
 

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IWSTI Club Level 11ty
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no it's not normal. that is why the warning light is there. to prevent any real damage from heat caused by low oil.

First, check the sensor in back of the dif. my light came on, and when i crawled under the car to see if fluid had leaked out i noticed the wire harness was barely on. i snapped it back in and the light went away. if the clip/harness is plugged in, take it to the dealer (or somewhere that can change the dif fluid).
 
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