random

Just looking for some advice. 2004 6.0 that starts fine sometimes and at others takes 6-8 seconds. Sometimes have to try twice but it always cranks. Good oil pressure...have had the HPOP replaced and the standpipe. Issue has been going on for a long time but is starting to irritate me. Have...

my late 99 7.3 has some strange idle at random times. Fires right up runs fine cold/hot. But sometimes after driving for a little bit if you sit for a little while weather you are in gear or in park, the idle with bounce. Its not dramatic but you can see it on the tach, it will jump up and down...

I bought my truck about 5,000 miles ago and about 3 times now, it has had this random surging/jerking when I am cruising down the highway. It feels as though the RPMS are jumping by 25, then going down 25, etc... for about 1-2 minutes and then it goes away. Just enough to notice it really. Any...