Here we go -- Head Replacement in progress.

[mln2963]

Since having the head replaced at the beginning of April my mpg has increased! Before I was getting 13.5 - 14 around town. Now I've got up to 14.8.

[Drew Slothower]

Well-

I just got the news from the dealer. The car's been in the shop since before memorial day (May 24th -> today).

They said they have everything back together, but the H3 would not start. I was told they needed to order a "computer" to be replaced. (Not much more detail than that)

Has anyone else had this issue? What could they be referring to with the "computer" on a 1.5 year old truck with 21k miles on it??

[RubHer Yellow Ducky]

Originally Posted by Drew Slothower

Well-

I just got the news from the dealer. The car's been in the shop since before memorial day (May 24th -> today).

They said they have everything back together, but the H3 would not start. I was told they needed to order a "computer" to be replaced. (Not much more detail than that)

Has anyone else had this issue? What could they be referring to with the "computer" on a 1.5 year old truck with 21k miles on it??

Your Sinclair has gone bad and needs to be relpaced... simple as that

[Drew Slothower]

After a 13 day run without the H3, everything was finally back together and working. Everything seems to be running A-OK, and the service manager showed me everything that was done.

He told me that he had done about 8 H3's at the dealership, and the mechanics have the head replacement down. Much of the delay was due either waiting on parts, or something else breaking.

Here's all that was done:

Head, Cylinder - Replace (This included gaskets, bolts, coolant, oil, and filter)
Sender and / or pump assembly, fuel (Tank Unit) replace.

Then-- the tech said the car would not start after he had it all back together.. so:

Powertrain Control Module Replacement (this was the computer they mentioned)

I now need to touch base with Hummer on my case file, but it sounded like they will be increasing the warranty on the engine.. I'll post more when I get the final info!

[Dani]

Originally Posted by Drew Slothower

I now need to touch base with Hummer on my case file, but it sounded like they will be increasing the warranty on the engine.. I'll post more when I get the final info!

Hopefully you have better luck with your head replacement than I've had with mine. I've had the head replaced 3 times on my H3. The 3rd time they replaced the head- it wouldn't start. My error code came up as the timing.

[westhillsat]

Mine is currently in the shop having the replacement done.
The light came on with a little over 7,000 miles on it.
I have my extended warranty letter in hand.

My second H3 and I would buy another one.

[Drew Slothower]

As everyone recommended, calling GM got me the extended warranty. So I'm covered until 2012 and up to 121k miles.

So far, everything is running a-ok. The dealer did a great job with all of the work, and gave me the car the same way I left it.

Thanks to everyone for their feedback!