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Bad TPS Symptoms?

5370 Views 2 Replies 3 Participants Last post by  mikeglass1969
What are some symptoms of a going bad TPS or IAC?
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When driving at a constant speed the tach will go up 200-300RPM and go back to normal, all by itself. It just revs up and down. Feels like the trans is slipping but it is not.
My 2000 4.7l 4x4 5sp manual TPS caused error codes p0201, p0202, ect.
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