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Old 10-16-2019, 08:23 PM   #1
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2009 Not Getting Up to Temp. Please help!

Hey y'all

This morning on my way to work I noticed my temp gauge was only getting up just above the C on the temperature sensor. It's the first 40 day we've had in a while, but I've always been dead center on the temperature gauge within 5-10 minutes of driving.

I shut the car off and came back about 5 minutes later to see that the car got up to around 1/3 of the way up the temperature gauge.

I used the reset button to display the coolant temp and noticed that it never got above 75 Celcius. And even went down a bit after driving.

My first thought is to replace the thermostat and housing, but the weird thing was that even when reading at the very bottom of the C on the temp gauge I still had heat in the car. It worked just as well then as it did when the temperature came up a bit. Wouldn't I have issues getting heat if the thermostat were stuck open?

123,000 miles and was planning a coolant flush at 150,000. I've never had any other coolant system problems, but my A/C just went out on the tail end of the summer. I doubt they're related issues, but I wasn't planning on getting that fixed until spring/summer when A/C is needed.

Any help with the diagnosis is appreciated. Thank you!!!


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Old 10-16-2019, 08:29 PM   #2
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Thermostat trust me. Yes you can still have heat.

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Old 10-16-2019, 08:47 PM   #3
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I've heard the best way to get to the housing is through the passenger side headlight. Also, don't the 2009 engines require a vacuum to be pulled when refilling with coolant?
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Old 10-16-2019, 08:51 PM   #4
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Sounds right on the headlight. It helps but you don't have to pull a vacuum. Most people never do.

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Old 10-16-2019, 08:56 PM   #5
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I'll put the order in on an OEM housing and get to work. Thanks for the help!
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Old 10-16-2019, 09:02 PM   #6
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Let us know how it goes.

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