got my check engine light this morning in traffic

[fourfourto]

You must call hummer consumers relations, 1 866 4866376 they will need vin # dealers name and delivery date and mileage.that will start the case file .Within a day or two a manager will call you about the case.I did it with the brake grown and it was closed after the reginal rep said it was normal .
With the head issue they will extend warranty(at least thats what I read here)
Good luck

[Hmmm2]

Originally Posted by fourfourto

With the head issue they will extend warranty(at least thats what I read here)
Good luck

I had the cylinder head replaced not too long after I bought my H3, but they wouldn't give me anything as a warranty extension. They said, "It's fixed and you won't encounter the problem again." The Service Mgr said they had several H3's in for the problem, so they were aware of what needed to be done. Thankfully I haven't had the problem come back (at least not THAT one ..lol). That was about 1.3 years ago.

[Mike E]

I've witnessed 3 head jobs on H3's in our shop so far. We have 3 techs that can have it done in less than 2 days. It's pretty ugly looking when they get it all apart put the new head assembley drops right in on top of the block and they put everything back to gether. It wouldn't bother me one bit if I had to have this done to mine.

We have allowed customers to drive thier H3 until the new head arrived. The tech clears the codes and changes the timing a bit so the engine runs smooth. Hasn't caused a problem yet.

[HummBebe]

Originally Posted by Mike E

I've witnessed 3 head jobs on H3's in our shop so far. We have 3 techs that can have it done in less than 2 days. It's pretty ugly looking when they get it all apart put the new head assembley drops right in on top of the block and they put everything back to gether. It wouldn't bother me one bit if I had to have this done to mine.

We have allowed customers to drive thier H3 until the new head arrived. The tech clears the codes and changes the timing a bit so the engine runs smooth. Hasn't caused a problem yet.

That's brilliant....did you catch this "M" ???

[f5fstop]

Originally Posted by HummBebe

That's brilliant....did you catch this "M" ???

Problem is, you cannot change timing, it is all controlled by the PCM, and clearing the codes will only be temporary; these are basically hard codes, not hisotory codes. But I agree, most of them can be driven. It will cause more damage to the cylinder head, but who cares. There is a slim possibility that after X-number of miles, the cat may be damaged