idle
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idle - 10/19/2007 8:22:41 PM
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dizzy
Posts: 271
Joined: 9/26/2006
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OK guys I have had my 03 H2 for a couple of months now and really love it. I am trying to get to know the truck better as far as what is normal or not in the way it performs. I notice when I am sitting at a light that there seems to be a slight "stumble"in the engine idle. The tach shows about 550rpm and the needle doesn,t really move
. I have changed the plugs and wires and pcv valve for regular maintenance. This isn,t really noticable but I want to know if others feel this and is it just normal for the 6L? Anyone else in my truck would not notice it but the little things bug me. Any thoughts on this?
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RE: idle - 10/20/2007 1:00:43 AM
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HummBob
Posts: 16165
Joined: 5/6/2006
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Yeah....Mechanical.....Sorry can't help ya!!!
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2004 Black Hummer H2
2007 Black Escalade
 
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RE: idle - 10/20/2007 2:42:27 AM
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hilljob26
Posts: 2069
Joined: 9/2/2007
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if it was bling related...bob would have taken care of ya
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dont sweat the petty stuff,pet the sweaty stuff
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RE: idle - 10/20/2007 2:44:56 AM
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hilljob26
Posts: 2069
Joined: 9/2/2007
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how many miles are on your rig,hows the air filter,have you cleaned the mass air flow sensor,what kind of gas are you running,i noticed in my old truck which had a 6.0,it did the same thing,i started using that lucas fuel treatment,and not only did it help,but i also ended up getting a couple more mpg after a fyull bottle,get the big bottle,you get about 6 uses outta it
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dont sweat the petty stuff,pet the sweaty stuff
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RE: idle - 10/20/2007 6:41:59 AM
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Muddydawg75
Posts: 9960
Joined: 3/11/2007
From: South Jersey Shore
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You could change your fuel filter. You could run some injector cleaner through a tank of gas. Your description sounds like what every engine I have ever owned does. The only real way you can find out what it's doing is put it on a computer. If you have one Cyl that is misfiring on a regular basis then you might have an issue.
and another thought as soon as I hit the Ok button.... you have an 03.... your A/C is always on... Turn the button off (the snowflake) and then see if it does it.
< Message edited by Muddydawg75 -- 10/20/2007 6:43:15 AM >
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"I feel sorry for people who don't drink. When they wake up in the morning, that's as good as they're going to feel all day." --Frank Sinatra
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RE: idle - 10/20/2007 8:48:40 PM
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dizzy
Posts: 271
Joined: 9/26/2006
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Hi. Guys. The truck has about 70,000 miles. The air filter looks ok, I just put in some fuel injector cleaner the other day. I have not cleaned the MAF sensor or changed the fuel filter. I will see how the injector cleaner works and maybe clean the MAF sensor. Should I just spray some electrical contact cleaner in the maf? How have you guys cleaned the MAF? Thanks
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RE: idle - 10/21/2007 11:02:20 AM
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dizzy
Posts: 271
Joined: 9/26/2006
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Yes I changed the plugs and wires about a week ago. The plugs that I took out really didn,t look that bad and all of them looked about the same.
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RE: idle - 10/21/2007 4:43:16 PM
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Muddydawg75
Posts: 9960
Joined: 3/11/2007
From: South Jersey Shore
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but seriously.... turn off the A/C and then listen.... see if it changes....
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"I feel sorry for people who don't drink. When they wake up in the morning, that's as good as they're going to feel all day." --Frank Sinatra
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RE: idle - 10/21/2007 5:23:36 PM
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dizzy
Posts: 271
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I have had my climate control off lately so the climate screen is blank. The ac should be off in this mode. I will double check later. Thanks
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RE: idle - 10/21/2007 5:26:46 PM
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dizzy
Posts: 271
Joined: 9/26/2006
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I also took out my air filter and tapped it on the ground a couple of times and sand came out. I then blew it out with my air hose. Hope this helps. Maybe time for a new air filter.
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RE: idle - 10/22/2007 4:38:29 PM
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Muddydawg75
Posts: 9960
Joined: 3/11/2007
From: South Jersey Shore
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Those donaldson's are pricey...... I just did mine....
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"I feel sorry for people who don't drink. When they wake up in the morning, that's as good as they're going to feel all day." --Frank Sinatra
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