help!!!!! heating up!!!

[spflick]

ok we have a 96 camry and if it is sitting and idleing it never goes above half!! but when were driving down the road the gauge will go up to just under the red and if you slow down and then step on the gas again the temp will go down and then come up! once the temp reaches normal the coolin fan comes on and stays on untill it is till its under half on the gauge. Also the lower radaitor hose is cold / nuckwarm and does not seem as the thermo stats opening..... i have put to thermo stats in it and then we took it to the shop and they said it was the water pump... took it home and tore it down and the timing belt was loose and worn and the pump seem fine and almost new... put new water pump and time belt on it and still doing it has a new cap!!! has anyone had this issue??? oh also it has great heat !!! ok well thanks i hope to get some help with this
spflick

[Brian R.]

Either the block or the radiator is probably plugged up and preventing circulation, most likely the radiator. Backflush the radiator from the bottom hose connection with a garden hose and see if a lot of water pours out the top. Also, check the lower radiator hose to see if it is soft and can collapse under suction.

Make sure you are putting the thermostats in correctly and that they are the correct part number.

[xfeejayx]

too bad you did all of that other stuff before you asked about it here.

also, it may seem trivial, but are you sure you have enough coolant/water in there, and are you mixing 50/50. Its a similar scenario to what would happen if you only had water and you started boiling inside the system.

[spflick]

thanks for your replys first of all!!! un we have a 50 50 mixture and the radiator is full to the top just seems as it the thermo stat is not opening
and if i have the cap of and let it run it does not flow or even boil over
!!!! thanks again!!!!