Question about 2008 Hummer H3

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2008 hummer h3 will not start, crank. Battery, starter, and alternator, are all good. Check engine light does not stay on.

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6ya6ya
  • 2 Answers

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Posted on Jan 02, 2017

goofduck
  • 490 Answers

SOURCE: Hummer H3 rear lights staying on

if it is the brake lights that are on check the brake light switch on the brake pedal

Posted on Apr 21, 2009

  • 5 Answers

SOURCE: 98 saturn sl1 won't start

If the problem occurs after the car has been driven long enough to reach normal operating temperature, the problem is the starter. If the 'no crank' occurs cold, retest the battery.

Posted on May 11, 2009

  • 11 Answers

SOURCE: i want to reset the hummer 2008 h3's dashboard

switch ignition on. press instrument switch on off until oill reset appears then hold switch down for about 5 seconds and listen for faint bleeping noise oil is then reset.

Posted on Jul 20, 2009

  • 1 Answer

SOURCE: 2006 Hummer H3 fails to start periodically

If you look in the owner's manual it will explain this. Happened to me a bunch of times, really embarassing. It is an additional anti-theft device . If the computer senses that the key is inserted improperly, or that it is not a perfect match for the code it has in its memory for your key, it shuts of the gas supply to your engine for approx. 10 minutes to defer theft. Still happens to me intermittently. Now only very rarely. Total pain. I cleaned my key..carefully, with WD40 and after drying put just a touch of graphite on the key and started the beast a number of times. My dealer didn't read the manual either. You must wait the full ten minutes before trying to restart....otherwise it never totally resets and (the first time this happened to me) you can sit there and fight it forever.

I don't have my owner'smanual handy to refer you directly to the proper pages, but its in there under theft deterent. Hope this helps......and that Hummer can provide aneasy fix for this.

Posted on Jul 21, 2009

carputers
  • 255 Answers

SOURCE: 2008 Hummer H3 The trackion failed light on

clean abs sensors at each wheel.

Posted on Sep 08, 2009

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1 Answer

The Power will not turn on.


Pam Jeffers... hello,

Then look to your grounds (frame, engine & body)...

The problem with a GLOBAL phrase like "will not turn on"
indicates (very unlikely) everything...

Nevertheless

I always recommend for flawless documentation... get the FACTORY+WORKSHOP+MANUAL... & H3+2008...

Barring that research & purchase check "bbb industries"
(below) for your vehicle...

Also check what your OBD (on board diagnostic) is telling you about registered fault codes

BBB Industries Premium Alternators Starters Power Steering Products

May 17, 2016 | 2008 Hummer H3

1 Answer

My hummer h3 2008,the oil pressure lindicator


The engine will shut down to protect itself,check the oil level and see whether the car has oil.The light comes on if the oil level is low or the oil pump is not pumping any oil.I replaced my engine hummer h3 two weeks ago due to a malfunctioning oil pump.Check if you oil pump is not malfunctioning.Good luck hope you have not damaged anything further like the bearings due to lack of oil.

Sep 17, 2014 | 2008 Hummer H3

1 Answer

H3 hummer battery dead and doors would not open with keys 2008


go under it put power to the starter ,it will activate the system

Mar 27, 2014 | 2008 Hummer H3

2 Answers

Locating the voltage regulator located on 2007 Hummer H3?


I don't have a shop manual for a Hummer.
But GM trucks built in 2007 use something other than the alternator to control voltage. Sometimes its called a generator control module and sometimes it is inside the body computer or the ECM.
You may need to check with someone who specializes in Hummers for the answer.

Feb 03, 2013 | 2007 Hummer H3

2 Answers

2008 Hummer H3 idiling then shutting off/ hard cold start


Check the coolant level please,my hummer wont start when the coolant is low in the engine

Mar 15, 2012 | 2008 Hummer H3

2 Answers

What would cause my h3 2005 hummers headlights to start flashing very fast when I started it.


For headlight flashing on start up issue,click this link below for details and troubleshooting :----http://technoanswers.blogspot.in/2012/02/hummers-headlights-flashes-while-start.html
---------This will help.Thanks.

Feb 16, 2012 | 2006 Hummer H3

1 Answer

Hummer 07 h3 will not charge light is on the dash and all so flashes charging system needs servicing.. changed alternator system still will not charge..


MOST NEW GM CARS YOU NEED TO ERASE LOW CHARGE TROUBLE CODE FIRST USING A CODE SCANNER BEFORE CRANKING VECHICLE.IF ALL READY DONE CHECK ALTERNATOR BATTERY FEED WIRE AND VOLTAGE REGULATOR WIRES AND CHECK ALTERNATOR FUSE.

Feb 06, 2011 | 2006 Hummer H3

1 Answer

I have 08 Hummer H3 3.7 and show code P300 ! but get new plugs crank,cam and alternator i found one problem whit the alternator , start 14.8V charging and gos to 12.3V after 5 minutes ! i see some battery...


I AM LOOKING AT ALTERNATOR.IF ITS FAULTY.IT WILL CAUSE PCM PROBLEMS AND MISFIRE TO ALL CYLINDERS DUE TO WEAK SPARK TO IGNITION SYSTEM. CHECK YOUR WARRANTY THEY MIGHT FIX IT.STILL A NEW VECHICLE.

Jun 18, 2010 | 2009 Hummer H3

2 Answers

2008 Hummer occasionally will not start. Completely randon when this occurs. Can sometimes wait a few minutes and it starts and sometimes much longer. This has basically been happenning since new. Dealer...


Do you hear a clicking sound around the engine when it doesn't start? Have someone try the starter while you listen carefully under the hood for the source of the clicking. If it comes from the starter/solenoid area, you will need a voltmeter or test light to test for 12 volts at the battery side of the solenoid (light on or 12 volts always while attempting to start). If light goes out (12 volts goes to zero), then replace the positive battery cable that connects at the solenoid. Next test is at the solenoid other heavy terminal that connects directly to the starter motor. If the light never goes on (12 volts never appear) during start, the solenoid is bad and should be replaced. If light comes on (12 volts appears), then the starter motor is bad and should be replaced. (It likely has a dead spot in the commutator.)

Sep 08, 2009 | 2008 Hummer H3

1 Answer

BRAKE SYSTEM FAILURE


well what could of happend they probably put the battery on backwards and blew out a fusible link.The links run thru the wires by the battery and behind the alternator check it out Good Luck keep me posted

May 27, 2009 | 2006 Hummer H3

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