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07-06-2006, 05:32 AM
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Hummer Veteran
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Join Date: Jul 2006
Location: West Coast of FL
Posts: 34
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Engine clattering?
Hey yall I was wondering what was up with tmy engine clattering. As I hit the gas slightly I hear the motor ping a little bit as if it were low on oil or something. I can press the gas and release then hit it and hear it almost everytime. I have not called the dealer yet just wanted some insight on this first fromthe pros here...Thanks guys let me know....
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2006 H3 Boulder Gray Adventure Package, DVD Headrests, XTC Step Bars (POS),Monsoon Speaker System...(Soon to have SMA HD brushguard)
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07-06-2006, 03:27 PM
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Hummer Authority
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Join Date: May 2005
Location: Texas
Posts: 1,304
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Re: Engine clattering?
Havent heard anything like that -- if it is pinging, you may try a higher octane gas as a test, but it shouldn't be doing it anyway with 87 octane..
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07-06-2006, 03:51 PM
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Hummer Guru
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Join Date: Apr 2005
Location: Orlando, FL
Posts: 6,358
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Re: Engine clattering?
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Originally Posted by Hummer Guy
Havent heard anything like that -- if it is pinging, you may try a higher octane gas as a test, but it shouldn't be doing it anyway with 87 octane..
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That's what I was thinking. Has this been happening for a little while? Could you have maybe gotten a bad tank of gas?
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Slate Blue H3 Adventure w/sunroof, Monsoon/NAV, DVD and marker lights
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07-06-2006, 04:12 PM
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Hummer Messiah
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Join Date: Feb 2003
Location: Federal penitentiary
Posts: 21,046
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Re: Engine clattering?
Quote:
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Originally Posted by usmcman001
just wanted some insight on this first fromthe pros here...Thanks guys let me know....
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While it doesn't always work, you can try revving the engine to 7000 rpms. Hold it there for 15 minutes, shut if off, and restart. |
07-06-2006, 05:41 PM
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Hummer Guru
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Join Date: Mar 2005
Posts: 3,356
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Re: Engine clattering?
dealer, now
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07-07-2006, 02:46 AM
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Hummer Expert
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Join Date: May 2006
Posts: 616
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Re: Engine clattering?
Posibly a bad knock sensor
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Black 06 H3, Adventure Package, Monsoon Sound, Sunroof, Chrome and Tow Package
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07-07-2006, 03:00 AM
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Hummer Guru
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Join Date: Nov 2005
Location: rollin with Beebs & F5
Posts: 5,546
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Re: Engine clattering?
knock knock , Who's there ? bad sensor 
not sure about your state but i put 85 octane in mine by accident when in Utah and had a slight ping . it went away with the next tank does your state have 85 ?
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GREEN no BLING , LINE-X & 35's , Adv. , monsoon & some other crap too
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* Rollin with the Banned and the Damned *
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07-07-2006, 03:02 AM
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Hummer Guru
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Join Date: Nov 2005
Location: rollin with Beebs & F5
Posts: 5,546
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Re: Engine clattering?
would a bad cylinder 1 exhaust valve cause this ?
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GREEN no BLING , LINE-X & 35's , Adv. , monsoon & some other crap too
Hangin with my HOABies , Bling is cool but HOABies RULE!!!!
Black Sheep Hummer Squadron / camp no due's & no dont's
* Rollin with the Banned and the Damned *
"Fred Thompson for President "
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07-07-2006, 03:02 AM
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Hummer Expert
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Join Date: May 2006
Posts: 616
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Re: Engine clattering?
I live in Utah and use 85 octane all the time with no problem.
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Black 06 H3, Adventure Package, Monsoon Sound, Sunroof, Chrome and Tow Package
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07-07-2006, 03:04 AM
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Hummer Guru
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Join Date: Nov 2005
Location: rollin with Beebs & F5
Posts: 5,546
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Re: Engine clattering?
Quote:
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Originally Posted by deserth3
I live in Utah and use 85 octane all the time with no problem.
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so that eleminates that , you dont have california emissions do you ?
__________________
GREEN no BLING , LINE-X & 35's , Adv. , monsoon & some other crap too
Hangin with my HOABies , Bling is cool but HOABies RULE!!!!
Black Sheep Hummer Squadron / camp no due's & no dont's
* Rollin with the Banned and the Damned *
"Fred Thompson for President "
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07-07-2006, 03:24 AM
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Hummer Veteran
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Join Date: Jul 2006
Location: West Coast of FL
Posts: 34
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Re: Engine clattering?
I appreciate the help. I am about empty on the gas and I am going to put high octane and hope that is it. I didnt hear it today hardly so maybe it was bad gas. No NEOCON I am from NC. Thanks again....
__________________
2006 H3 Boulder Gray Adventure Package, DVD Headrests, XTC Step Bars (POS),Monsoon Speaker System...(Soon to have SMA HD brushguard)
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07-07-2006, 03:41 AM
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Hummer Guru
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Join Date: Jul 2005
Location: nonpiker
Posts: 5,900
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Re: Engine clattering?
It has to be something computer related. The computer can adjust to what level octane gas is put in the tank. So if it is pinging that bad...I'd take it to the dealer......pronto stat!
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07-09-2006, 05:35 PM
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Hummer Guru
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Join Date: Jul 2005
Location: Idaho
Posts: 4,744
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Re: Engine clattering?
I would agree, it sounds like a bad knock sensor or the computer is having heart burn. If the computer can't retard timing enough to stop knock, it is usually a bad sensor, but it could be some really bad gas (in the fuel tank). If it is misfiring, the idiot light and message should come on, and then it could be a bad intake valve on cylinder one.
Good part of that is new cylinder heads are hardened to prevent any further problems, new procedure with a new tool, cuts the repair time in half.
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