Only 55,000 miles, but I think it cracked from a dose of cold water when I went through 18-20" Coyote Creek a couple of weekends ago in the desert with Only1Balto. Sigh...
So I took it off today. Even if I pay my trusted independent GM mechanic to put it back on, I was curious. Maybe too curious.
Yep. big fat crack:
Looking pretty empty in here:
Final tally of siezed and torqued off manifold bolts in the head = 3.
:duh: :hissy: :ugh: :sadcry: :sadcry: :sadcry: :sadcry:
Of 11 bolts (8mmX1.25), the ones that broke are the farthest forward and the two farthest rearward. Almost impossible to see without a mirror. I even took off the power steering pump to see if the access got any better - still miserable. Even with a very short right angle drill, I have very little hope that anybody could get a screw extractor in there straight.
So - what's the betting that there's no way to fix this except remove the head and take it to a shop? I could drill and put in helicoils in the machine shop at work, but I'm really not looking forward to removing the head working in the dark after work every night. So I'll probably tow it to the mechanic tomorrow, take my lumps from him for being a dumb butt, and open my wallet. Sigh...
In my opinion..
You have to wonder when there are so many complaints about one part, and such a major part at that.
I love my 2008 trail blazer, but it also has a cracked manifold .
Now this is not the only site where the manifolds from the same engines are a constant complaint,.
Being as there are so many complaints about these manifolds it leads me to believe that it is a manufacturing problem and should be addressed as such.
As for tie rods and any moving parts I agree they break or ware out just as your tire do and often but the manifold is different.
I’ve always owned used vehicles all my life and NEVER have I had a manifold crack on me once this is a part that is suppose to last a lifetime, its not just a cost issue but also an environmental one.
I’m taking my trailblazer into the dealer Monday and I have copied some of these comments about the manifold problem, its being looked at by some sort of head mechanic, whose decision is apparently final .
After his inspection I’m going to let him see all these comments for its evident to me his decision well be swayed if they do not cover at least the part of the cost .
Let you know how things go if it dose not go well there’s always W5 lol