2006 GMC Sierra 3500 Q&A

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

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 -
Answer 1
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. -