2003 Hesitation

brand new 2003 blazer. When i first pull away from the garage car works great.Then I notice a hesitation after the car warms up. If I was at a complete stop, and give it gas I feel it hesitate.Dealer says nothing comes up on the computer of a fault code. Service guy says " that just the way the car runs. We own 2 other Blazers and Don't have the problem. HELP.

Hi. I just got my Astro van back from the dealership for the same problem. Attached to the work order was a bulletin from GM. The bulletin covers all 03 Astros, Blazers, S-10/15, Sonoma, Silverado and more with the 4.3. It says that yes there is a hesitation and a whole bunch of bullshit about it being normal. This is Bullshit. I am an ASE certified auto tech and this is not normal. GM is trying to cover up a major screw-up. It is very dangerous on my van, it could cause an accident. I am going to fight it. I can scan the bulletin and e-mail it to you if you like.

Ian