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Old Dec 30, 2006 | 01:55 AM
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Default thermostat

my car(2001 coupe) runs at around 172 this time of year, no heater running. Could the previous owner have installed a 160 thermostat without reprogramming for it and that is why it runs so cool?
If the heater is on, it is slightly higher like 179. I think that's because the compressor is on also with the heater.
Doesn't make sense. I got a code, I looked it up, and it was the engine was not warming up for the time run in relation to the outside air temp.
sounded like the t-stat was stuck open 2 me.
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Old Dec 30, 2006 | 01:59 AM
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I would say that you are on the right track. It's either a 160/180 thermo or the stock one is not closing fully. The good news is that thermos are cheap.
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Old Dec 30, 2006 | 05:54 AM
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Sounds like a different thermostat was installed. Car should be running around 195* or so.
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Old Dec 30, 2006 | 12:11 PM
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I have a 178 in my 00 which runs around 175 winter & 183 summer.
Fred
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Old Dec 30, 2006 | 12:19 PM
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Originally Posted by FKING1
I have a 178 in my 00 which runs around 175 winter & 183 summer.
Fred
Only at cruising speeds. Not in traffic.
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Old Dec 30, 2006 | 01:25 PM
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If you’re getting a code, probably a P0128, I’d bet on the thermostat not quite closing all the way. A lot of guys install a lower temp therm, including myself, and never get a code. Like stated above a 195 deg. therm is inexpensive and if you’re a do-it-yourself guy a very easy job. A lower temp therm will cost a little more.
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Old Dec 30, 2006 | 03:42 PM
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If it takes a really long time to warm up, that is the clue that it is either stuck open or there is no thermostat in there.
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Old Dec 31, 2006 | 05:00 PM
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Originally Posted by robvuk
Only at cruising speeds. Not in traffic.
Correct.
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Originally Posted by gpracer1
If it takes a really long time to warm up, that is the clue that it is either stuck open or there is no thermostat in there.
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