Hummer Forums - Enthusiast Forum for Hummer Owners

Hummer H3 For the Hummer driver who wants the rugged look and off road capabilities of the Hummer, but in a smaller size and with a more fuel economy friendly engine.

I hope this was the culprit...

Thread Tools
 
Search this Thread
 
  #1  
Old 08-21-2018, 10:49 AM
Backporch73's Avatar
Member
Thread Starter
Join Date: Jul 2018
Location: Phoenix, AZ
Posts: 78
Default I hope this was the culprit...
Remanufactured??
not terribly bad for 133k Miles looks like someone has already been in here? Hope the cleaning solved my intermittent stalling issue at low speeds.
 
Last edited by Backporch73; 08-21-2018 at 11:08 AM.
Reply
  #2  
Old 08-24-2018, 05:52 AM
Backporch73's Avatar
Member
Thread Starter
Join Date: Jul 2018
Location: Phoenix, AZ
Posts: 78
Default
UPDATE!! Cleaning solved my stalling issue! Thanks Guys!!!
 
Reply
  #3  
Old 08-25-2018, 01:27 AM
Gomer's Avatar
Senior Member
Join Date: Jun 2012
Posts: 155
Default
Good deal. If it happens again there is one more sensor you can clean it’s the on on the top near the rear of engine has a plug going to it. Can’t remember what it is called but i can see it in your 3rd picture in the background. I cleaned mine with some of the left over MAF cleaner and been running great for about 8 or 9 months now.
 
Reply
  #4  
Old 08-25-2018, 01:31 PM
Backporch73's Avatar
Member
Thread Starter
Join Date: Jul 2018
Location: Phoenix, AZ
Posts: 78
Default
Thanks! I'll check that out too
 
Reply
  #5  
Old 08-25-2018, 10:46 PM
Backporch73's Avatar
Member
Thread Starter
Join Date: Jul 2018
Location: Phoenix, AZ
Posts: 78
Default stalling persists!!
Well the stall seemed to go away for a couple of days but now its back again. I guess Ill start with that other sensor. I also bought some Techron fuel system cleaner, but I have to wait until the tank is near empty. Someone recommended it on the forums in one of my many searches
 
Reply
  #6  
Old 08-26-2018, 02:31 PM
hummer_on_fumes's Avatar
Senior Member
Join Date: Jul 2013
Location: Virginia
Posts: 565
Default
Originally Posted by Backporch73
Well the stall seemed to go away for a couple of days but now its back again. I guess Ill start with that other sensor. I also bought some Techron fuel system cleaner, but I have to wait until the tank is near empty. Someone recommended it on the forums in one of my many searches
There's a variety of things that can cause a rough idle but someone here once mentioned trying better gasoline such as shell or exxon instead of Costco or any other "cheap" gas. You may want to try that as well throughout your troubleshooting. The 2 things that made my H3 idle really hard were old spark plugs and then bad valves losing compression. The spark plugs are fairly easy to change but I had to get my valves remachined which cost a good amount
 
Reply
  #7  
Old 08-27-2018, 09:15 AM
TAINTER's Avatar
Senior Member
Join Date: Sep 2008
Location: SE Michigan
Posts: 5,930
Default
Intake manifold bolts sometimes come loose also.
I5 has a "shake" to it.
 
Reply
  #8  
Old 08-27-2018, 07:41 PM
BruceS's Avatar
Senior Member
Join Date: Jan 2016
Posts: 150
Default
What air filter are you using?
 
Reply
  #9  
Old 08-30-2018, 05:08 AM
Backporch73's Avatar
Member
Thread Starter
Join Date: Jul 2018
Location: Phoenix, AZ
Posts: 78
Default
Originally Posted by BruceS
What air filter are you using?

it it just looks like a new generic style air filter, nothing special but it’s clean.
 
Reply
  #10  
Old 08-30-2018, 07:36 AM
Backporch73's Avatar
Member
Thread Starter
Join Date: Jul 2018
Location: Phoenix, AZ
Posts: 78
Default Video of almost stalling
Seems worst with the AC on

 
Last edited by Backporch73; 08-30-2018 at 07:39 AM.
Reply



Advanced Search
Quick Reply: I hope this was the culprit...


Reply Closed Thread Share

All times are GMT -5. The time now is 11:30 AM.