Coolant temperature

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02-05-2009, 08:49 AM

#11

RkyMtnHHR

Senior Member

Join Date: 02-29-2008

Location: Denver, CO

Posts: 165

Most times mine is in the 190-200 range. The coolant/water in the radiator will start to vaporize around 250-260.

02-05-2009, 11:17 AM

#12

Old Lar

Senior Member

Join Date: 09-11-2007

Location: Palm Bay, Florida

Posts: 1,378

Quote:

Originally Posted by kornellred

I would like to see a more sensitive, functional analog temperature gauge in my HHR, so that I don't have to constantly scroll through the DIC readout to check engine temp. My gauge just sits on the fourth mark (right below half-way) and never moves. I have never seen a picture of an HHR's instrument cluster where the needle on the temp gauge is anywhere but on the fourth mark. (if it's up to operating temperature, of course)

Just leave the DIC on the temp setting if you have concerns. I usually leave my DIC on the MPG setting. The temp gauge won't show much difference between 195-212, all within normal operating temperatures.

02-05-2009, 11:23 AM

#13

GRUMPEE

Senior Member

Join Date: 06-02-2006

Location: Break Away Republic of SoCal

Posts: 1,533

Quote:

Originally Posted by Old Lar

What he said. I set the DIC to the temp setting when I'm concerned about overheating especially when going up mountain passes w/ passengers and cargo. Otherwise it's set to MPG most of the time

05-11-2011, 03:02 PM

#14

molecule

Member

Join Date: 05-02-2011

Location: SoCal

Posts: 45

Glad I found this tread only had my hhr since thursday , and have seen normal driving and in traffic temp. of 190-208 which seemed high to me from my other vehicles.Feel better now

05-11-2011, 08:37 PM

#15

donbrew

Technical Moderator

Join Date: 01-23-2009

Location: Fredericksburg, Virginia

Posts: 24,691

Imagine my surprise when I found out that "normal" operating temp is around 196F, but the tstat is 180F! Go figure. But if you look at it, the tstat is on the bottom side of the radiator, not the top like older cars; so the tstat is to keep the temp "high" enough, not "low" enough. Did I make sense or logic?

05-11-2011, 10:53 PM

#16

TomsHHR

Senior Member

Join Date: 01-13-2006

Location: Superior, WI - Over the Hill Warranty Club member

Posts: 2,999

My HHR temp needle points between 2 lines, this one and that one!! |^|

Now my 2009 silverado has a 185 and the temp runs 210 all the time when warmed up.

The 5.3 on my Bucket has not completely warmed up yet. After 20 minutes the bottom of the radiator was still cool 100 degrees when read with a thermal gun with 185 at the thermostat elbow.