replaced egr light still on truck missing under load also replced dpfe sensor
Feb 10, 2011 at 2:59 PM
Advertisement
CARADIODOC
✓Experienced Mechanic
34,413 POSTS
Suspect EGR tubes clogged with carbon. Typically the misfiring cylinder is the only one that is not clogged. The same required volume of exhaust gas flows but instead of going to all 8 cylinders, most of it goes to the one or two unclogged cylinders causing the misfire.