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thottle cutting in and out

790 views 7 replies 5 participants last post by  dom42 
#1 ·
When cruzing mostly on the highway thottle cuts in and out like a bad TPS and the thottle % surges even when my foot dosent move or in cruzie contol.The truck is an early 03 5.9 .does any body have any ideas.Thanks:S::S:
 
#2 ·
Mine did that at first then the accelerator pedal position sensor went out. If you throw the p2121 code that's the sensor I have a place to get one at a third of the cost just pm me.
 
#7 ·
Black maybe you just had a fluke and re setting your comp fixed it I could temporarily fix mine by turnin key on slowly pressing the pedal to WOT then slowly releasing the pedal then repeat once more. But eventually it will totaly give out.
 
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