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Old 12-13-2013, 08:17 PM   #1
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Engine temperature

Purchased a 2014 Ford Focus SE 5dr recently. Has a whopping 60 miles on the odometer already.

I noticed it really heats up quickly -- within minutes of start up even at near freezing temperatures. And within minutes I mean the temp gauge is showing mid scale. Assuming the temp gauge is correct, does the Focus have a mechanism to heat the coolant quicker than cars previously did with just engine heat? I.e. is there some sort of electrical heating that is applied to the coolant?

I can understand the advantages if so. I imagine a quick heating vehicle would get out of open loop mode sooner.

Yeah, you can probably tell it's been years since I've had a new vehicle.


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Old 12-13-2013, 08:50 PM   #2
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Quote:
Originally Posted by TooOld View Post
Purchased a 2014 Ford Focus SE 5dr recently. Has a whopping 60 miles on the odometer already.

I noticed it really heats up quickly -- within minutes of start up even at near freezing temperatures. And within minutes I mean the temp gauge is showing mid scale. Assuming the temp gauge is correct, does the Focus have a mechanism to heat the coolant quicker than cars previously did with just engine heat? I.e. is there some sort of electrical heating that is applied to the coolant?

I can understand the advantages if so. I imagine a quick heating vehicle would get out of open loop mode sooner.

Yeah, you can probably tell it's been years since I've had a new vehicle.
The gauge in the instrument panel cluster is lying to you when it says it's heated up to the middle of the dial. The middle of the dial is calibrated to start at around 40 degrees Celsius and hold up to around 98+ C.

It is basically a glorified idiot light. The easiest way to tell this is to hold down the left ok button while turning the car on which will start the car's instrument panel display in test mode where you can view the temperature reading as one of the available screens.
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Old 12-14-2013, 09:29 PM   #3
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Even here in Mich I'm noticing faster warm ups than our other vehicles Maybe the radiator shutters help somewhat.
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Old 12-14-2013, 11:26 PM   #4
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Quote:
Originally Posted by flygry1 View Post
Even here in Mich I'm noticing faster warm ups than our other vehicles Maybe the radiator shutters help somewhat.
If you believe the gauge in the center of the instrument panel that's a false feeling. The car doesn't seem to actually warm up very quick at all, but the gauge lies to you. When it's cold out especially it takes a lot longer to warm up properly.

Yes you might get heat quickly but that's at the expense of prolonging engine warm up and the rich period when the car uses a lot more fuel to try and warm up to operating temperature.
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Old 12-15-2013, 01:02 PM   #5
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I'm in Cancun and I noticed the engine really heats up quickly too.... less than 30 seconds or so
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Old 12-15-2013, 01:21 PM   #6
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Quote:
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I'm in Cancun and I noticed the engine really heats up quickly too.... less than 30 seconds or so
This is not true or possible if it hasn't been ran shortly before. Reread what Suss posted.
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Old 12-15-2013, 01:49 PM   #7
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I just went out and started up in test mode. The temp gauge red normal when the temp was at 50 C (122F). A far cry from "warmed up". The engine was still running at high idle speed. When the idle began to drop to normal it was still only at 70 C (158F).
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Old 12-15-2013, 03:06 PM   #8
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Quote:
Originally Posted by ProjectCommuter View Post
I just went out and started up in test mode. The temp gauge red normal when the temp was at 50 C (122F). A far cry from "warmed up". The engine was still running at high idle speed. When the idle began to drop to normal it was still only at 70 C (158F).
Exactly, the car is no where near warmed up when the gauge first tells you that everything is normal.

This is done by design so that people do not freak out when the coolant temperature varies within the normal range yet will observe it when it gets into the danger zone. It replaces the idiot light as a false positive reinforcement that the car was running properly while giving a nod to the illusion that it's an actual gauge.

If your engine warmed up instantly (less than 30 seconds) then it was either A. plugged in to a block heater for hours before hand, or experiencing something horribly wrong.
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Old 12-16-2013, 12:56 AM   #9
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Quote:
Originally Posted by suss6052 View Post
The gauge in the instrument panel cluster is lying to you when it says it's heated up to the middle of the dial. The middle of the dial is calibrated to start at around 40 degrees Celsius and hold up to around 98+ C.

It is basically a glorified idiot light. The easiest way to tell this is to hold down the left ok button while turning the car on which will start the car's instrument panel display in test mode where you can view the temperature reading as one of the available screens.
That's retarded, way to make a gauge useless just to silence idiots.
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Old 12-16-2013, 06:51 AM   #10
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If you have auto climate control you can feel how quickly it warms up. When set on Auto the heat wont come on until the car is warm enough. For me, on cold CT mornings it's about 3-4 minutes of driving until the heat comes on.
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