Go Back   Hummer Forums - Enthusiast Forum for Hummer Owners > Hummer Lineup > Hummer H3
Sign in using an external account
Register Forgot Password?
Search

Welcome to the Hummer Forums - Enthusiast Forum for Hummer Owners.
If this is your first visit, be sure to check out the FAQ by clicking the link above. You may have to register before you can post: click the register link above to proceed. To start viewing messages, select the forum that you want to visit from the selection below.

Reply
 
 
 
 
LinkBack Thread Tools Search this Thread
  #1  
Old 12-28-2011, 09:04 AM
Junior Member
 
Join Date: Dec 2011
Posts: 2
Default Where is the thermostat located on a 2006 H3

I have a 2006 H3 that I just had a diagnostic done on, they told me that I had a computer module out, which I had them replace, and that I need a new thermostat, I bought the thermostat from the chevy dealer and now need some advice on locating it and changing it, any help would be greatly appericiated.
This ad is not displayed to registered members.
Register your free account today and become a member on Hummerforums!
Reply With Quote
  #2  
Old 12-28-2011, 11:37 AM
Banned
 
Join Date: Aug 2009
Posts: 2,654
Default

just ask in one place, look there!!
Reply With Quote
  #3  
Old 12-28-2011, 02:36 PM
Senior Member
 
Join Date: Nov 2011
Location: Warminster,PA
Posts: 163
Default

You get to it through the drivers side wheel well. When you look under the hood, follow the hoses.
__________________
Red 06, hood stripe, red & black leather interior, tow package, Monsoon radio, iPod attachment, body lift, Tbar crank, Bilstein shocks, extended bump stops, air horn, flares w/guards, 35's, GM exhaust, H3 tips, intake, filter, tune, UCP, diff slider, spring delete, ported throttle body, ladder, Thor bumper, winch, dual batteries, Tmax controller, KC lights, red grille, BA shock slider, stealth rack, rock sliders, Hi-Lift jack, drill/slot rotors w/ceramic pads, braided lines, shock/spring sliders
Reply With Quote
  #4  
Old 12-28-2011, 10:41 PM
2wheelmonster's Avatar
Senior Member
 
Join Date: Jan 2009
Posts: 1,392
Default

following the hoses is your best bet, good luck
__________________
HUMMER SERVICE MANUAL for the H2 or H3
email hummerservicemanual@hotmail.com
H2/H3 service manual for only $5 through email only,
The manuals are in PDF format and can be printed
CHECK YOUR SPAM MAILBOX FOR MY REPLY, I WILL GET BACK TO YOU WITHIN A DAY
Reply With Quote
  #5  
Old 12-29-2011, 11:21 AM
Doc Olds's Avatar
Super Moderator
 
Join Date: Jul 2007
Location: Boat Town USA MI
Posts: 6,145
Default

Driver side of motor toward the front below the head. #305 is the housing #954 is the stat.
Click the image to open in full size.
Reply With Quote
  #6  
Old 12-29-2011, 08:52 PM
mthoodh3's Avatar
Senior Member
2006 Hummer H3
 
Join Date: Feb 2010
Location: troutdale,oregon
Posts: 199
Default

You need to drain the coolant, jack it up enough to get the front driver's side wheel off, remove the wheel well liner and now you can access the thermostat. Follow the radiator inlet hose to the engine block. Remove the hose clamp and 2 thermostat housing bolts. Replace thermostat, put everything back together and refill coolant.
I haven't done it yet, but i've looked into the install since i think mine needs replacement as well. The price of the thermostat and coolant alone is probably $100, i didn't even bother calling a dealer. Hope it works out for ya
Reply With Quote
  #7  
Old 12-30-2011, 08:09 AM
Doc Olds's Avatar
Super Moderator
 
Join Date: Jul 2007
Location: Boat Town USA MI
Posts: 6,145
Default

If you do OEM, the stat comes with the housing and seal for $29.55 + shipping from GMpartshouse.com.


You will need a tad less than 2 gals of 50-50 Dex-Cool for the refill, so you can buy two of the pre-mixed ($15.00 ea), or one of the straight ($18.00) and add 50% distilled water ($2.50) yourself.

DIY under $65.00.
Reply With Quote
  #8  
Old 01-09-2012, 11:42 AM
Member
 
Join Date: Jul 2010
Location: Toledo
Posts: 40
Default Regarding the P0128 code: thermostat or temp sensor?

shouldn't both be changed? at least that was suggested somewhere since you can't tell which one is actually faulty and exactly where is the temp sensor located? Your diagram of the thermostat location was most helpful. I have a 06 H3 70k, dash gage between 1/4 to 1/2 when warmed up, plenty of cabin heat, had CEL cleared now throwing the P0128 code again.

Thx Doc
Reply With Quote
  #9  
Old 01-09-2012, 01:05 PM
Senior Member
 
Join Date: Nov 2011
Location: Warminster,PA
Posts: 163
Default

If you search that code there is another thread going that is tied back to this one.

In my case, the first time I threw a PO128, I found the cracked radiator. I replaced the radiator and thought I was good. About a month later I threw the code again. The main call out in the maintance manual is the thermostat. I had it replaced and have been good ever since. Since new, I have replace the heater core, radiator, all hoses and now the thermostat. I'm not sure if any of them are a result of the early heater core failure (6 month old at the time) or not.

I have not had to replace the sensor or gauge... yet. After the thermostat was replaced my gauge does read a quarter higher when warmed up (above half way now).
__________________
Red 06, hood stripe, red & black leather interior, tow package, Monsoon radio, iPod attachment, body lift, Tbar crank, Bilstein shocks, extended bump stops, air horn, flares w/guards, 35's, GM exhaust, H3 tips, intake, filter, tune, UCP, diff slider, spring delete, ported throttle body, ladder, Thor bumper, winch, dual batteries, Tmax controller, KC lights, red grille, BA shock slider, stealth rack, rock sliders, Hi-Lift jack, drill/slot rotors w/ceramic pads, braided lines, shock/spring sliders
Reply With Quote
  #10  
Old 01-09-2012, 03:08 PM
Member
 
Join Date: Jul 2010
Location: Toledo
Posts: 40
Thumbs up thanks 58 will continue to search

On the HummerXForum I did find a diagram identical to the one Doc Olds presented on this thread which additionally included the location of the Temp Sensor (CTS) and was labeled as #313. Located opposite side of the thermostat housing (on the passenger/exhaust manifold side) appears near cylinder heads 2/3.
I've read where one might as well change this $15 sensor also along with the thermostat since your draining and replacing the coolant anyway. If this sensor eventually corrodes it makes sense to change it now @ 70k. From what I've read the dash gage has no bearing from vehicle to vehicle. Most common between 1/4 to 3/4 after the engine is warmed up, I'll keep an eye on it and eventually report once I have the work done. I'd welcome any further comments.
Reply With Quote
Old 01-09-2012, 03:08 PM
 
 
 
Reply

Tags
06, 2006, buy, coolant, cost, h3, hummer, located, location, replacement, sensor, temperature, themostat, thermostat, tstat


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


Advertising

Featured Sponsors
Vendor Directory
Our Sponsors
All times are GMT -5. The time now is 09:26 PM.

Internet Brands, Inc.



SEO by vBSEO ©2010, Crawlability, Inc.