for the past month or so my SES light has been coming on randomly, sometimes on start up, at idle, or just driving down the road...when this happens it stays on for maybe ten seconds or so and will not let me accelerate untill the light goes off...any ideas?

 

Get the truck scanned... That will tell you the problem...

 

i know....it has been scanned and nothing came up. got any other suggestions.......

 

TPS... throttle position sensor...

Unplug it and clean it good, then use some dielectric grease and plug it back in. May or may not help but its worth a try before replacing it.