temp sensor problems. - Chevy HHR Network
Chevy HHR Network Forums

Go Back   Chevy HHR Network > General Discussion > Problems/Service/Repairs

Problems/Service/Repairs If you have a problem with your HHR, want a tip on repairing or performing a particular service to you HHR here is the place to post!

LinkBack Thread Tools Search this Thread
Old 09-27-2010, 06:56 PM   #1
New Member
Join Date: 07-02-2010
Location: Kansas City
Member #: 21775
Posts: 25
Check out my gallery 
temp sensor problems.

So the past few days I have been having problems with the temperatures not reading when I start the car. After driving it for about 5 miles the temp would kick on and start reading with no signs of a check engine light. During the time it didn't read I would not get cold air from the AC also. Then a couple of nights ago I get in it. It stopped working then the check engine light comes on And stays like this for a few days. I have read on here about the thermostat being the problems but the timing of mine failing to turn on is whats throwing me for a loop because it only did it the first time I started it and then stopped reading it altogether. The code when I read it was for temp level. Then today as I go to purchase a coolant sensor for it. it all of a sudden starts reading again. While im at work (oreilly auto parts) I clear the code and now its all fine. Im pretty sure it will again do the same thing. But the question is. Is it the Thermostat or the coolant temp sensor. I ended up buying the thermostat but have yet to put it in.
2008 Chevrolet HHR- Imperial Blue

EricHHR is offline   Reply With Quote
Old 09-27-2010, 07:25 PM   #2
Join Date: 10-02-2007
Location: Monroe, Ohio
Member #: 4470
Posts: 80
Images: 2
Check out my gallery 
Mine was doing the same thing a month ago, I replaced the thermostat and after that I have not had a problem.
frentzjr is offline   Reply With Quote
Old 09-29-2010, 07:41 PM   #3
Senior Member
skyeglen's Avatar
Join Date: 01-15-2008
Location: michigan
Member #: 5355
Posts: 270
Check out my gallery 
What was the code when you checked it? P0128 will be the t-stat, "Engine Coolant Temperature [ETC] Below Thermostat Regulating Temperature".

If the coolant temp does not reach a set temp in a pre-set time it will throw the code, the DIC temp reading will be "----", the dial guage will not work and your AC will not work either.

Replacing the t-stat is a pretty easy job, 2 bolts and no gasket as they use a o-ring and are pre-attached to the t-stat.
skyeglen is offline   Reply With Quote
Old 09-30-2010, 02:32 AM   #4
Senior Moderator
Join Date: 04-09-2006
Location: Vancouver, BC, Canada
Member #: 757
Posts: 4,747
Images: 86
Check out my gallery 
It's the thermostat - see this link for the replacement procedure:
whopper is offline   Reply With Quote

Similar Threads
Thread Thread Starter Forum Replies Last Post
Ambient temp sensor, yes again! Scorangehhr Problems/Service/Repairs 14 01-13-2015 04:56 PM
outside air temp sensor.. alexrckid General HHR 7 06-10-2013 11:45 AM
Temp Sensor SwaintaN Problems/Service/Repairs 29 05-31-2013 01:10 PM
how do you get to the temp sensor..?? alexrckid Problems/Service/Repairs 6 07-06-2012 07:27 AM
where is temp sensor? greg_h General HHR 4 07-05-2012 07:58 PM


Thread Tools Search this Thread
Search this Thread:

Advanced Search

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are On
Pingbacks are On
Refbacks are On

All times are GMT -5. The time now is 02:30 AM.

vBulletin copyright ©2000 - 2015, Jelsoft Enterprises Ltd. Vb Style © vb-skins.com
Copyright © 2005 - 2013 Internet Brands, Inc. All rights reserved.
Chevy HHR Network Forums