VMIZ71

I have a '99 Silverado Z71 with the Vortec 5300 - awesome engine. I have never had any problems with my truck and has served me faithfully from the day I bought it at roughly 144,000 miles until today 168,000. I have put a flowmaster exhaust system on there and have swapped the stock airfilter for a K&N filter. This past summer I bought a Hypertech Power II Programmer for my truck with dual fuel technology. I programmed my truck to run best on 87 octane, for the transmission to have harder shifts to extend trans life, and I reset the governor to 128 mph (my tires' max speed rating). Ever since I reprogrammed my truck there has been a slight rattle behind the driver side dash during light acceleration. It does not rattle while coasting, harder acceleration, or while cruise control is on. The truck still runs great and I notice an increase in power, but should I be worried about this sound?

I think ya'll should take a look at "The World is Flat" by Thomas Friedman. I have not read it personally, but several of my classmates have and Mr. Friedman spoke at our school about a year ago. I think it puts a lot about the intricacies of the world economy into perspective in this day and age. Trade is going to factor into our economy these days more than ever, and striking that balance between a strong American workforce and providing import competition to keep prices low for consumers is never going to be simple. As a sidenote about Japanese contributions in Iraq, the Japanese Naval Defense Force has contributed greatly to our security efforts in the Persian Gulf.