Ok so i recently changed out the old radiator which was corroded and losing fins for a new one. in the process did a coolant flush. put the new radiator in and everything is all good. system runs fine, but i noticed when idling the car will reach operating temp just fine but soon as i get on the road the engine temp dropspretty much to cold. i dont think ive seen this before but could this be precursor to bad thermostat? the system was burped of air after the flush so im pretty sure its good there. any suggestions?

 

Did you use a honda replacement radiator or from a different car like some on honda-tech have used dodge neon rads? I have switched between half rads and full rads before but it didnt make that much of a difference.

 

it was an aftermarket replacement.