Re: Getting new head
 

Last month I drove up to Edmonton Canada. WHile up there the check engine light came on. Onstar said it was related to changing fuel, fuel cap, ect. I don't remember the code.
The engine light went out when I got back to the states and ran US gas through it. I did a little reading on the internet. Canada still uses MMT during the winter which is not recomended according to the owners manual.
While in Canada I only used ESSO and Chevron. Of course nothing on their pumps stated what additives were used.
I just got the onstar email and everything is good.
Just a thought...Any comments or problems from Canadian Hummer owners?

Re: Getting new head
 

Scratch what I said about fuel. Went in for new roof rails today. SHe's staying getting new head.
What's interesting is it didn't show up on the diagnostic email I recieved yesterday.

Re: Getting new head
 

man that suck. Hope the roof rails work out better then the head.

Re: Getting new head
 

is the cylinder head issue fixed in the '07 h3s?

Re: Getting new head
 

I would assume so, since they changed the head design later in the 06 model year.

Re: Getting new head
 

ah, it wasnt clear in the messages i was reading that they actually changed thr head design in the late '06's, because some of the messages were very current and those people were having head problems. it wasnt stated whether their vehicles were 06's or '07's. whew. thanks!