RE: HEAD AND VALVE ISSUE
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RE: HEAD AND VALVE ISSUE - 2/9/2007 10:19:17 AM
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HummerGuy
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I made a mistake. Mine was manufactured in Oct. '05.
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RE: HEAD AND VALVE ISSUE - 2/9/2007 1:31:31 PM
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LawWyfe
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See my latest post up above under warranty contact info 
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2006 Hummer H3 Boulder Gray
Simple and understated and not all tricked out!
Sometimes less is better......OK...some BLING since I joined here!
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RE: HEAD AND VALVE ISSUE - 2/9/2007 1:34:57 PM
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HummerGuy
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Yes. Very disturbing. Real NICE customer service. And then people wonder why Imports outsell American cars.
< Message edited by HummerGuy -- 2/9/2007 1:39:03 PM >
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RE: HEAD AND VALVE ISSUE - 2/9/2007 1:37:39 PM
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LawWyfe
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Well yes, they aren't going to give anyone anything that has not had this problem.
_____________________________
2006 Hummer H3 Boulder Gray
Simple and understated and not all tricked out!
Sometimes less is better......OK...some BLING since I joined here!
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RE: HEAD AND VALVE ISSUE - 2/9/2007 1:54:28 PM
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H3Head
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I'm not trying to be a pain but GM will take care of everyone. Everyone just relax, it will all work out.
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RE: HEAD AND VALVE ISSUE - 2/9/2007 2:02:05 PM
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HummerGuy
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Perhaps somebody that would like to protect the reputation of their company...................
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RE: HEAD AND VALVE ISSUE - 2/9/2007 7:18:39 PM
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H3X442
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The obdII scanner should read a P0300 misfire detected but would also have a check engine lite. I also had another one with a head problem today
quote:
ORIGINAL: HummerGuy
quote:
ORIGINAL: H3X442
I had 2 more H3's come in with misfire codes and ordered heads for them. Larain60 let me know when you get yours in. It's bad enough I have to tell someone that there cylinder head needs to be replaced But this backorder situation makes it that much more harder to explain. Steve
H3X - Do the misfire codes produce regular OBDII codes? I bought one of those fancy shmancy OBDII code readers that I've used on my friends Explorer but not on mine yet. It has the Database code summary built in.
The reason I'm asking because I've been having some suspicious conditions the past week or two. I got a new belt tensioner and belt two weeks ago. Since then (also when the temps dropped from 35 to 0) I have had a few instances (this morning) where the car started to sputter and the idle dropped to about 400-500. It's been happening every couple of days. The belt is fine, the tension is fine, but I'm starting to wonder if I'm getting this now. I have 30k on mine and the manufacturer date is Oct. '05 It's starting to worry me.
Does a misfire cause the Check Engine light to come on, or only produce a code?
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2007 H3 yellow/ebony lux,off road,chrome wheels,sunroof,trailer pkg.,bright roof rack,chrome fuel door,chrome tube steps,xm radio,Nav and roof rail air bag
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RE: HEAD AND VALVE ISSUE - 2/12/2007 8:11:32 AM
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HummerGuy
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H3X442: I hooked my OBDII scanner up this weekend and have absolutely no errors, BUT whenever I come to a stop and take it out of gear, as I'm approaching the stop my idle dips below 500 RPMS until I come to a complete stop, then it boosts back up to normal, around 750 to 800. It was happening almost every single time I stopped from maybe Tuesday or Wednesday until yesterday. Today it didn't seem to do it, but it's 31 degrees as opposed to last week when it was below zero most of the time I drove it.
Have you ever seen that before? Does the head and valve problem definitely produce an error code?
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RE: HEAD AND VALVE ISSUE - 2/12/2007 8:30:22 AM
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HummerGuy
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That's what I thought also. I actually removed the clutch sensor plug you are talking about on Saturday because I was wiring a remote control switch for the KITT lights and had some of the wiring going through the harness, and thought, ok I'm going to plug and unplug it a few times to clean it.
I haven't noticed it happen since, but I'm wondering A) is it possibly the cold weather doing it and B) wouldn't the PCM get an error code if the clutch sensor was faulty C) perhaps the + source wire that was going through the wires on the clutch sensor was causing some EMI in the sensor which was giving the PCM some bad signals. That + is coming from the infamous AUX B+ wire behind the console. That produces alot of power since it's tied right to the battery.
Since I did that the weather has gone from about 5 degrees to the now 31 degrees this morning. It also started once they changed the surpentine built and belt tensioner pully. It was doing it when I got the car back from service that night but that was also 2 days after I installed the KITT lights and ran that B+ wire tap. There are bunch of variables, but I'm going to remove and replug that connector a couple more times before I leave work today and see if it does it anymore. That may just be it. Thanks buddy 
< Message edited by HummerGuy -- 2/12/2007 8:37:16 AM >
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