View Poll Results: A poll
Voters: 94. You may not vote on this poll
Exactly how many have had HEAD/Valve Problems
Junior Member
Joined: Nov 2010
Posts: 9
I still have no clue why people are argueing that this IS NOT a problem? Is it that you are telling yourselves this so that you'll believe it won't happen to you? Here are some FACTS...it IS a problem, so much so that GM recognized that the valve seats were soft and issed a PI sent to dealers that even included a VIN number range that could be effected. GM also started casting the heads differently to prevent this problem in the future...GM wouldn't just go and redesign /remanufacture heads because they got bored in the shop.
So sure, on this forum with a limited grouping of members it doesn't appear to be that common a problem, but look at the VIN # range that GM thinks could have bad heads.....the number is HUGE!! So seriously...why the arguing here? This isn't some crap bieng made up, and you people can keep drinking the cool-aid for as long as you want but when/if it happens to you DON'T come back on here bitchin about it. I have seen it sooo many times before on internet forums, the ones that say it's not a problem...it won't happen to me....when it does your the first to come back on here pissed off like someone just pissed in your cheerios.
So sure, on this forum with a limited grouping of members it doesn't appear to be that common a problem, but look at the VIN # range that GM thinks could have bad heads.....the number is HUGE!! So seriously...why the arguing here? This isn't some crap bieng made up, and you people can keep drinking the cool-aid for as long as you want but when/if it happens to you DON'T come back on here bitchin about it. I have seen it sooo many times before on internet forums, the ones that say it's not a problem...it won't happen to me....when it does your the first to come back on here pissed off like someone just pissed in your cheerios.What is a PI letter and do you have any more info on it?
Thanks for your help.
Junior Member
Joined: Nov 2010
Posts: 9
GM Fix
My Hummer had the same problem. GM fixed it for me a updated there system to include the Hummer in it now. So any of you guys have this problem. It should be in the system to fix at no charge.
Junior Member
Joined: Jan 2011
Posts: 2
From: iowa
I have a 2008 H3 with 40000 miles that was just diagnosed with bad cylinder heads. The Gm dealer handled it well and all new parts now going in. Just a good thing I caught it and threw a little knowledge pressure on Gm. I really did not think this extended into the 2008 year model but apparently it does,so owners beware and get it under warranty.How could they let this issue go on for so many engines and not correct the manufacturing process.Anybody up for a class action????
Junior Member
Joined: Nov 2010
Posts: 4
Who did you guys speak with? Do you have a contact with the Hummer Assistance Center? I've called my dealer many times now and they say there has been no service bulletin issued on this by GM. They told me it would need to be handled on a case by case situation through the Hummer Assistance Center.
Junior Member
Joined: Mar 2011
Posts: 5
I just started having the rough idle issue at 94k miles, sure enough bad head (valve seat sticking). What are the chances I can get this covered under some extended warranty?!? If so, how?
I already called the dealership and they quoted me $3500!!!
I already called the dealership and they quoted me $3500!!!
Junior Member
Joined: Mar 2011
Posts: 8
Another to add to the list
A couple of weeks ago we started to get the rough idle but no check engine light. Well a few days ago we got the dreaded light along with the misfire code when Onstar ran a diagnostic. Our 2006 H3 is at the dealer as we speak with only 75K miles and cylinder head problems. We were told it is going to cost us first $575 dollars just for them to open it up and find out exactly what needs to be done and then most likely have to replace the head which will cost an additional $2600. I am so mad right now I can't stand it. You would think after paying almost 17k for a car you wouldn't run into these kinds of problems. I did call and argue with the Hummer Assistance Center this morning and they sent my case to be reviews by a specialist that is suppose to let me know within 24hrs what they can do for me. All I have to say is they better do something, there have been to many people going through the same thing to just keep ignoring the problem. Here is the info if anyone else would like to flood customer service with complaints so this problem gets dealt with!!! 
GM HUMMER Warranty Customer Assistance Center
P.O. Box 33172
Detroit, MI 48232-5172
GM HUMMER Warranty Customer Assistance Centers are open Monday through Friday, from 8:00 AM to 11:00 PM (Eastern Standard Time). To contact the GM HUMMER Customer Assistance Center, call: 1-800-462-8782
GM HUMMER Warranty Customer Assistance Center
P.O. Box 33172
Detroit, MI 48232-5172
GM HUMMER Warranty Customer Assistance Centers are open Monday through Friday, from 8:00 AM to 11:00 PM (Eastern Standard Time). To contact the GM HUMMER Customer Assistance Center, call: 1-800-462-8782