We recently bought a accord and are pretty happy with it. as it was used i got right to work on it. there was a squeak coming from the rear passenger side and i thought i determined it to be the sway bar so i replaced it. didn't seem to do much and now it squeaks from both sides. this is evident when i push down on the rear. strange thing is it only happens on warm days, cold days not a peep. i tried lubing up all of the joints in the rear suspension by spraying them with some lithium grease but not taking them apart to do it properly, but doesn't seem to help. it is really annoying and i can't figure it out, suggestions?