Question about 2004 Hummer H2
I have an o3' h2 during the winter it use to idle up and down only when i turned on the heater, would run just fine in neutral and drive, and sometimes it would idle just fine with the heater on for some reason, now it idles up and down and shuts off with the ac on, and it idles up and down and wants and does shut down in neutral, i am having problems with the air suspention system where the pump wouldn't turn off so i disconnected it, and the ignition sticks in the start position sometimes and i have to manually return it back to the right position, all help will be highly appreciated sir.
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Posted on Jan 02, 2017
SOURCE: H2 Hummer
Today 11-12-08 my 2003 H2 Hummer would not start. Checked battery it ischarged. Cables tight. Tried to start with portable booster pak. No go. Tridto jump start with my wife's Suburban. Still no go.
When I turn the switch I hear a single click and that is it. No engine turning over. While trying to start with key the headlights go out. Out of ideas, Will take to Chevy garage in am. Will post solution.
Posted on Nov 13, 2008
SOURCE: h2 seat heaters wont work
yeah!!!! check the relay ,, ot should be under the hoos look at the diagram on the box to tell you which one.. swap it with anoter one from the box and check to see if its working..
Posted on Feb 07, 2009
I brought my 2006 H3 in to the dealer for the same thing. My blower stopped working all together but it started as an intermittent problem. He said he had to replaced a diode or resistor either behind the switch on the dash that controls the fan or on the fan motor itself. Have not had a problem since but that was only about 4 months ago.
Posted on Apr 09, 2009
SOURCE: hummer h2 idle rpm too low
I can't solve the problem but was hoping you found the answer. I have a 2003 Hummer H2 and I am having the same problems if started in park or Neutral it will idle fine but if I put it in drive or reverse it will not idle
Did you find the solution and if so could you email me the fix.
Posted on Jul 30, 2009
Dead Battery? Bad starter motor?
Try pushing on the brake and making sure its all the way in park.
Turn the steering wheel back an forth a little to remove the key.
None of those work, Call triple A, find a shop.
Posted on Aug 22, 2009
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