2006 GMC 3500 - Erroneous Check Engine and Loss of Power on 2006 GMC Sierra 3500

I have a 2006 GMC 3500 truck and am having problems with a loss of power. I notice this loss of power takes place when my check engine light comes on. I have had the truck looked at but nothing has been found. Is this a defect? Has anyone else had this issue, and if so, how did you resolve it? Any suggestions or feedback would be greatly appreciated. Thanks

by in Pomona, CA on August 16, 2010
1 answer
ANSWER by on October 12, 2010
I have an 01, same thing has happened a few times- 1x was a bad/clogged fuel filter, recently it was a small fuel leak that i didnt even notice for a month- then it started dripping badly and noticibly.