Gasoline Engine problems of the 2002 Chevrolet C2500

Chevy silverado 2500 hd w/ 6l engine-- problem with throttle sticking. Carbons up every two months around throttle valve and throttle sticks. Then takes excessive throttle pressure to try to move. ---is a serious safety issue when moving in tight quarters. Chevy has issued service modifications for 5. 3l and 4. 8l engines for same problem but has ignored the 6. 0l. Cleaning the carbon works for only two months then problem recurs. Chevy should make a field fix like the other models before someone gets hurt.

I purchased a 2002 Chevrolet hd2500 with a 8100 liter engine. I have now been told that this engine will use 1 quart of oil for each 1,000 miles driven. I believe that this is an excessive amount of oil to be used in a new vehicle. Has Chevrolet done anything to correct this mistake. Is there a recall for this problem?.