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GHTMAX 12-14-2007, 06:43 PM I have a 2004 LLY CC stock. I noticed that it started to idle rough the past couple of days. Truck has 60,000 miles on engine. It knocks at around 35-45 miles per hour, kinda of like a gas engine on low octane gas. Anyone experiencing same kind of problem? No check engine light. Reineke 12-14-2007, 07:17 PM You may want to check into the wiring harness issues... mdubsflexin 12-14-2007, 08:53 PM May want to try changing the fuel filter first. When was the last time it was changed? CobraCDN 12-15-2007, 10:00 AM How often should the fuel filter be changed in these? BigDmax 12-15-2007, 11:53 AM Mine started idling ruff and blowing smoke at start up last week. After three days at the dealership and $200.00, it was the fuel filter. I would defiantly check that before you do anything else. My first diesel…live and learn. :damnit1::banghead::duh: mdubsflexin 12-15-2007, 01:22 PM How often should the fuel filter be changed in these? I change mine every 1500 miles just to be safe, But alot of people just change them when you change the oil PoPsRacing 12-15-2007, 02:48 PM Every 1500 is way over kill. Every 10,000 is normal. | ||