ive just replaced my water pump as i know it wasnt in good shape and was a big cause of my problems. but the new water pump also seems to make a noise once in a while like its dry and there isnt anywater or its having a hard time. the head is good and has an extra thick headgasket on it. my guess is i have a clogged radiator and it would sound reasonable as i have used head gasked sealant in the radiator and it has prob clogged parts of it. the other symptom is afater about 4 hrs of continuous driving it starts to over heat if im doing 70 bor more but if i drop back down to 65 it seems to stable out or in many cases go down all together. anyone else had thes symptoms. and will a water pump make noise if there isnt anywater to pump.
what is the 22r fitted in as most run a thermo fan assy which is fitted to the front of the water pump if you have this then most likely the thermo is either just about to seize or it's still turn's then its in freewheel mode the best way to check is when the motor is cold check and se if you have a thermo fan fitted if so out one blade at 12 oclock and spin with one hand if the blade goes down past 3 oclock then you will need to open the coupling this is a simple job you will see 8 phillips head screws remove all and crack open the coupling but before this is done go to your local toyota dealer and purchase 1x 08816 10001 silicone empty this into the coupling and close this will fix your problem
