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.

Hummer h3 stalls only when stopping and engine is warm

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Old May 30, 2019 | 10:04 PM
  #21  
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Originally Posted by Dionta1990
Still having a stall issue I cleaned mass airflow sensor replaced oil pressure sensor I'm out of ideas to fix the issue
How much $$ have you lost to this point? Live and Learn!
 
Old May 31, 2019 | 10:53 AM
  #22  
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Originally Posted by Dionta1990
So I cleaned up my mass airflow sensor it helped the idle but I'm still stalling it seems to be oil pressure sensor is bad and the ECU is cutting off fuel pump cause it shows oil light then low oil pressure at stops intermittent I have did engine flush and full oil change no rough idle anymore just stalls intermittently
Did you ever bother to check the intake manifold fasteners??????????????????????
 
Old May 31, 2019 | 11:04 AM
  #23  
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Those are on tight I did check those so I'm noticing when I go to drive after vehicle warms up it stalls but if I put it in park it runs fine now so it seems like it has something to do with the transmission causing the stall witch is weird the only thing I have on transmission is 2 bad shift solenoids that have to replaced and I plan on doing that tomorrow now It does have more transmission fluid than it should witch I'm guessing could cause problems also but hopefully after I do the shift solenoids it should not stall anymore at traffic lights or stop signs lol
 
Old May 31, 2019 | 12:38 PM
  #24  
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Please, please, please learn to use some punctuation; my head hurts just reading your posts.
 
Old May 31, 2019 | 03:49 PM
  #25  
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Originally Posted by Dionta1990
Lol if you having problems reading or being a ******* just get off the forum simple I came here for help not dumbass remarks
You came here for help, and still haven't posted the error codes? In the meantime, you keep throwing parts at it.
 
Old May 31, 2019 | 04:14 PM
  #26  
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P0454,p0741,p0141,p0420,p0300,u1096,p0036
These are codes I'm getting
 
Old May 31, 2019 | 05:25 PM
  #27  
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Originally Posted by Dionta1990
P0454,p0741,p0141,p0420,p0300,u1096,p0036
These are codes I'm getting
STOP, throwing parts at it, and inspect the wiring & ground contacts.. All those codes include faulty/damaged wiring/inadequate ground.

Btw, I have seen multiple times, rodents infestation and chewing on the wiring harness causing multiple codes like yours.
 

Last edited by hummerz; May 31, 2019 at 05:30 PM.
Old Jun 3, 2019 | 08:37 AM
  #28  
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Originally Posted by Dionta1990
Lol if you having problems reading or being a ******* just get off the forum simple I came here for help not dumbass remarks
If you choose to flame people for commenting on your questions, perhaps this is not the place for you????

How about a vacation to think over whether you would like to participate without over-reaction to a valid point?
 
Old Aug 4, 2023 | 03:44 PM
  #29  
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I was wondering if you found out what was causing this issue? My 07 is doing the same thing. Stalling at stoplights after the motor has warmed up.
 
Old Aug 7, 2023 | 01:07 PM
  #30  
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Originally Posted by wmsdas
I was wondering if you found out what was causing this issue? My 07 is doing the same thing. Stalling at stoplights after the motor has warmed up.
And.................. FOUR YEARS LATER our new guy comes along and digs up this OLD THREAD by tacking a question on the end????????? READ: Old Threads/'Necro-Bumping'

Welcome wmsdas, please just start a New Thread in the H3 section, provide your year, model, miles and a description of the issue(s) along with a description of any work done just before the issues started, if any.
 



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