Looking for a Hummer H3- actually my wife wants one as runnaround vehicle.
I know, the questions are already asked- but I'm long year tech, just not work in a shop anymore for over 15 years- As I'm capable to diagnose and repair certain things on my own, what are the major weak points for a 5-cylinder powered H3 in general to look for? Just don't want to buy one and start repairing right away. Answers are greatly appreciated.

 

Welcome to HF.

From an old post of mine.... stay away from 2006 H3s with a Vin in the recalled numbers under 287591. 2007 through 10 are all good.

"The S/Ns affected is any 2006 H3 lower than 287591 .... the first one started with 100,001, your truck build date will be Nov. 06 or earlier. Not all have the problem, but some could. The headissue affected not only the I5, 4s and 6s were subject to the same issues. Call GM with your vin# and build date (from the sticker in the driver's door jam) and ask.

All the Atlas motors built since 4/1/06 have the new hardened valve seats."

 

Again with another"want to buy h3 thread".
skip it. Go get a modern vehicle that is supported by the aftermarket...