i been using the search list so please dont get on me and i been doing research and even tried reparing the problem myself

so my car is an automatic and its been doing crazy things such as

1. driving in a constaint speed and the RPM will drop from 3k to 2.5k rpm over and over going at a constaint speed at 60mph and i thought it would be the TPS sensor but recently changed it out not to long ago, the engine light turns on and my D4 (the drive) on blinks on the dash
2. i recently changed the (IAC) cause i was told it could be the problem and i bought a new 1, everything goes fine for a little while,
3. when i idle my car jumps up from 1k~3k after it warm up

sorrys im a noobie on the forum, this my first car, just wanna fix the little stuff beforing getting into some big stuff!
i think it could be the temperature sensor? i dont know, cause my temp gauge barely goes up

 

did you bleed your coolant system after installing the new IACV? and did you calibrate the TPS sensor?

 

it sounds like spark plugs and spark plug wires could be the issue.

 

well green liquid came out of 2 holes, for IAC, and for the sparkplug i recently changed it couple months ago, my car was flooded (back in Sept.) but im sure the green liquid did come out and the TPS i will check/adjust is that it? its not the TEMP sensor?

 

green liquid=coolant and when you lose coolant like that it can create air bubbles in your coolant system...and no your TPS sensor is on the back of your TB...coolant temp sensor is on the thermostat housing....

 

fluctuating RPM while driving in gear indicates a problem with the transmission itself. Something is slipping, and it's probably the torque converter, or maybe the drive plate (I don't know too much about automatic transmissions). Because otherwise, with nothing slipping, there is absolutely no physical way for the RPM to change if speed stays constant, since everything from the crankshaft to the differential is connected through gears. The only thing it could be is the torque converter or the drive plate in between the crankshaft and the gears inside the tranny.

 

Anyway I can fix the coolant air bubbles?

 

just open your radiator cap and start your car..air bubbles will shoot out and when the coolant runs low..fill it back up.thats how i do it...or you can bleed it with the drain plug on the bottom of the radiator..

 

thanks man! if the car has anymore prob what are the possible things to check! sorry if im asking so much

 

well it all depends on what the problem is...until then just drive like a granny for your own safety...