DKH2Hrnt
Active Member
Seeing if I could get some help narrowing down the issue I am having with my truck. It is a 2003, 5.4l, just over 100K miles. For a while now the truck has been missing at low rpms, around 1100, but it started to get worse and I can now feel it all the way up to about 2,000 rpm. In the past few days I have been feeling it jump as I pull off from a stop. Now, this morning I felt it start to hiccup as I was sitting at a stop light. The truck doesn't jump at all when in park, but It starts jumping again as soon as I put it in drive. Spark plugs? Coils? Fuel Injectors?