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Old 07-11-2003, 06:17 AM   #1
Scooby Specialist
Member#: 33270
Join Date: Feb 2003
Chapter/Region: NWIC
Location: Boise, ID
2004 STi
WR Blue

Default Max coolant temperature?

I installed my SECS unit, which has a programmable alarm for various items. I'm curious what I should set the coolant temperature alarm to. It was set by default to 203F, which has gone off a few times -- it seems I'm right around that point just driving around town, and I've been up to 208. I'm not doing hard driving.

Maybe the sensor could just be miscalibrated? I'm reading 104 degrees just sitting in the 85 degree garage (engine off and car off for 7 hours).
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Old 07-11-2003, 01:28 PM   #2
Scooby Newbie
Member#: 30823
Join Date: Dec 2002
Location: Boulder, Co/Bellingham, WA
2004 WRX STI


I lt my coolant alarm at 203F, I rarely see above 195F in daily driving, but it is only 65-75* here so go figure.
StealthWagon is offline  
Old 07-11-2003, 02:13 PM   #3
Scooby Specialist
Member#: 8351
Join Date: Jul 2001
Location: Alabama
2002 WRX Wagon


Well, I wouldn't be worried about getting a 203F alarm, because I don't think the electric fans come on until 205F. So, it may be better to set the alarm slightly above 205F.

The thermostat begins to open at about 170F and should be completely open at 196F.

The stop and go puttering around town will generate higher coolant temps since the cooling airflow isn't consistent or even present.

ToddStratton is offline  

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