2002 RAM 1500 WITH 4.7 When I am at idle at a stop my engine hunts. Rpm's go up and down from about 500 to 850. Also when at hwy speed it seems to jump out of final lockup. Rpms jump up and down about 200 rpms. Is this the Throttle Position Sensor or something else? Thanks

 

maybe because you didn't put the cover sheet on your TPS report?

 

Thats a good one! I love that Movie!

 

could be a vacuum leak.

 

thats what i thought when i saw tps that movie is the bomb

 

Chances are, that if the TPS is acting up, you would throw a code. I'd be more inclined to think that the throttle body is in need of cleaning, or possibly a general tune-up. Plugs, possibly wires, injector cleaner, throttle body cleaning. Start here first, if it continues, there may actually be a problem.

 

It was the TPS. $80 dollars later and about 10 min work and everything back to normal. No check engine light during this problem!