rmy 2003 dodge 1500 over heated when i was going down the freeway i got it home and changed out the thermostat and the radiator and now it wont idle so i changed out the spark plugs and now it wont idle still i got a check engine light for my tps would that be doing all this cuz my head gasket is still in tacked i dont have creamy oil and there wasnt any coolant in my spark plugs so could my tps be the cure to all this
nope could be temp sensor! the old 5.2 and 5.9 had 2 sensors one for the temp gauge and one for the pcm. If the one for he pcm went out then the motor would not ever idle! not sure if the 4.7 isthe same way but it sounds like the same issue.
it wouldnt make it any better open loop makes it think its 52 below so it makes it super rich and usually bogs it out at least on most cars its that way lol you need to take it to a shop that has a scanner that can read real-time data and see what it says