Outside Temperature Updates - EquinoxForum.net: Chevy Equinox Forum
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post #1 of 44 (permalink) Old 10-14-2010, 03:12 PM Thread Starter
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Outside Temperature Updates

The outside temperature that's displayed in the morning is always accurate.
Later on, as it gets warmer out, the display accurately reflects the increased temperature.
The display will also go up if I stick a hair dryer on the sensor for a few seconds or so.
This is before I start it up. Once I start up the engine and take a short drive, the computer then sticks on that last temperature reading and will no longer reflect outside temp increases later in the day (or when blowing the warm air on the sensor). If I drive down the road for a few miles, then it will start climbing to the actual outside temperature. I did have the sensor changed without much difference. It seems like the computer has a tough time updating the info that the temp sensor is sending it. Any theories on what's happening here?
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post #2 of 44 (permalink) Old 10-14-2010, 08:11 PM
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Re: Outside Temperature Updates

Quote:
Originally Posted by jsganz
The outside temperature that's displayed in the morning is always accurate.
Later on, as it gets warmer out, the display accurately reflects the increased temperature.
The display will also go up if I stick a hair dryer on the sensor for a few seconds or so.
This is before I start it up. Once I start up the engine and take a short drive, the computer then sticks on that last temperature reading and will no longer reflect outside temp increases later in the day (or when blowing the warm air on the sensor). If I drive down the road for a few miles, then it will start climbing to the actual outside temperature. I did have the sensor changed without much difference. It seems like the computer has a tough time updating the info that the temp sensor is sending it. Any theories on what's happening here?
Your blowing hot air over the light sensor.... JK

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post #3 of 44 (permalink) Old 10-15-2010, 11:39 AM
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Re: Outside Temperature Updates

I could be wrong, but I don't believe there is any "computer" involved in this. The sensor is likely pretty much the same as any thermometer that you would have indoors or hanging on your back porch...and probably no more or less accurate than those types of instruments. I find that mine pretty closely matches the temps I see displayed on digital bank signs and such..

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post #4 of 44 (permalink) Old 10-15-2010, 01:49 PM
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Re: Outside Temperature Updates

Temperature probe/sensor will be in the front end somewhere protected from the elements. Maybe inside the hollow part of the front bumper. This way it won't be affected by wind chill or ice pack or direct sun. If temperature is not correct try changing the probe. That is the likely culprit.

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post #5 of 44 (permalink) Old 10-15-2010, 05:33 PM
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Re: Outside Temperature Updates

Does it really matter? I think that is the number one stupidest gage/sensor that you can put on a car.

It's either hot out or it's cold. If someone starts out in the morning and the sensor says it's 60*, then as ythey travel it goes to 80*, do they pull over and stop the car and take off their coat........I don't think so.

What's even dumber is an air temp gage on a Harley. Never could figure that one out.

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post #6 of 44 (permalink) Old 10-15-2010, 05:40 PM
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Re: Outside Temperature Updates

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Originally Posted by GARYD
Does it really matter? I think that is the number one stupidest gage/sensor that you can put on a car.

It's either hot out or it's cold. If someone starts out in the morning and the sensor says it's 60*, then as ythey travel it goes to 80*, do they pull over and stop the car and take off their coat........I don't think so.

What's even dumber is an air temp gage on a Harley. Never could figure that one out.
Anything you don't need/use/want is dumb? I for once love having a temp gauge. My Impala doesn't have one and the S/O's Camry has it. When we drive out and it's only 60s we have windows up and sunroof closd. If we notice it's over 70 we turn off AC and open sunroof, over 80 we open windows. This was especially useful last weekend when we drove down from NY down back to DC area.

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post #7 of 44 (permalink) Old 10-15-2010, 06:11 PM
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Re: Outside Temperature Updates

I'm sure the temp sensor is behind a front bumper component, to eliminate sun/engine heat affecting it, as well as shielding from ice, as stated by other poster. Wind chill does not affect non-flesh and blood substances. It's our nerves that amplify wind temps. Metal "feels" only what it actually is.

You need to roll to see a temp change cause the sensor is sitting in a pocket of it's own air , so to speak. W/o rolling, any temp change will take a few hours perhaps, as no fresh data (temps) are blowing past it.

This week, if I drive around it says about 60F . Then I put it in garage for a few hours (heated garage) and it shows a few degrees higher (maybe 70F) when I come back. As I drive again, it soon drops back to ambient air temps of about 60F. This is normal functioning condition. I think you're fine.

GaryD, One big advantage of an outside temp display is you get a critical advance notice of possible road icing conditions. When you're tooling down the road on a nice drive, the temp can drop 5 degrees in 5 miles(area/winds) sometimes and it's good to know that the next bend may have a thin ice patch waiting..........
Saved my hide a few times since my cars have had it. Harley is a good bike!

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post #8 of 44 (permalink) Old 10-15-2010, 06:56 PM
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Re: Outside Temperature Updates

Quote:
Originally Posted by Motorman
I'm sure the temp sensor is behind a front bumper component, to eliminate sun/engine heat affecting it, as well as shielding from ice, as stated by other poster. Wind chill does not affect non-flesh and blood substances. It's our nerves that amplify wind temps. Metal "feels" only what it actually is.

You need to roll to see a temp change cause the sensor is sitting in a pocket of it's own air , so to speak. W/o rolling, any temp change will take a few hours perhaps, as no fresh data (temps) are blowing past it.

This week, if I drive around it says about 60F . Then I put it in garage for a few hours (heated garage) and it shows a few degrees higher (maybe 70F) when I come back. As I drive again, it soon drops back to ambient air temps of about 60F. This is normal functioning condition. I think you're fine.

GaryD, One big advantage of an outside temp display is you get a critical advance notice of possible road icing conditions. When you're tooling down the road on a nice drive, the temp can drop 5 degrees in 5 miles(area/winds) sometimes and it's good to know that the next bend may have a thin ice patch waiting..........
Saved my hide a few times since my cars have had it. Harley is a good bike!

MM
By wind chill I mean the cooling effect of wind blowing on a wet sensor caused by evaporation.

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post #9 of 44 (permalink) Old 10-15-2010, 07:57 PM Thread Starter
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Sudden Temp drops

Yeah, well...I'm mainly concerned about the winter months. I play in a band on weekends
and changes in elevation on the way home at 2 a.m. can cause quite a temperature fluctuation.
I leave one location and it's just cold rain. 20 miles later it's freezing on the road. It's kinda
nice to know the temperature display on the dash is accurate. I guess the main thing I'm noticing
is it's just not quite as responsive as other vehicles I've owned.
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post #10 of 44 (permalink) Old 10-16-2010, 02:33 AM
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Re: Outside Temperature Updates

Georgi, you're telling me you need a temp gage to tell you when you can open a window?

I doubt very much that a temp gage ever saved anyones life. Maybe you shouldn't be on the road if you need a temp gage to tell you to drive more carefully when the roads are icy. I usually use my eyes to see when roads are icy, they haven't failed me yet. How did you drive in the winter before you ever had a temp gage? Just curious.

What does the outside air temp have to do with the temp inside the car? If it's cold out you turn on the heat. What will you do differently when the gage says 40* then when it said 45* or 50*?

Most people with Harleys replace the air temp gage with either a compass or an oil temp gage.
I did on all mine. Sure didn't need one. Sitting on the bike if it was warm out , I said to myself "It's warm out" and if it was cool out I said "It's cool out, I should wear a jacket." No rocket science there.

Sorry, Still haven't heard any good reasons for an outside air temp gage. I think a spare tire pressure gage would be of more value then an outside air temp gage.

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