Did you burp the air out of the system after changing those parts? It sounds like the thermostat isn't opening which is why the lower hose is still cold. Click my screenname, go to my tips and tricks, and choose the one about burping the cooling system - it may help you out.
Well just remember the lo wer hose should be colder but if the temp outside is cold then it is reasonable to expect the rad to run colder
failing that i would re change the thermostat just incase the one you put in was defective and stuck wide open or opening at wrong temp
it does hapen from time to time
if outside air temp is below -20 then it is likely the das is cooling the fluid too fast but it temp and rpm then it's likely the thermostat
pop off the top rad hose fill the rad up have a friend start the truck and keep the rad hose high just 10 - 20 secs should do
fill the top rad hose with coolant prime the block
then re conect it
re start the truck leave rad cap off
you should see the soolant moving
if you dont see the fluid moving then apply tht rad cap just press it on dont turn it this will presure the system then remove it and refill rad it should drop and you will need to repeat the proces a couple of times
once you can press and remove the cap and fluid doesnt drop fill rad to top and close it up you have now burped the system and it should work properly
good luck and have fun if this fails take it over to the local shop or go to the loan a tool place like auto pro or a rentall place get a radiator compression tester do a compression test and see if thet helps with the problem burping the system
We hav done al of the above. The radiator is the only thing we r ? Could it be the wrong size it looks less then an 1in. Thick
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The t-stat may be the wrong setting. check the box and you may have to get a different one with a higher temp rating.
when you purchased the radiator did you buy one with one more core? that would cuase the issue.
We did not fix it the shop where we got it did. But we r thinking it is one core how do we check it out to know for sure
Hello can u answer how we check about the core. How many cores should a heavy eng (360) have
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How do we check about the cores. And how many cores should a 360 eng. have
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thanks. the same problems occure with the new tstat. my heat in the cab. is cool lil warm till the rpm go up. could be maybe heater core or vaccum hose cracked slightly going to heater controls????
its a 190 t stat . and the engine isnt reaching 190. so thats probly why lower hose is cold?
replaced rad with same one i took out. i think it did same thing with old rad.. rad started leeking that why i replaced it. im really starting to think heater core or low vaccum pressure to control unit maybe? thanks
which heater hose goes to water pump top or bottom?
Hi I have a BMW 320 convertible I had a recon engine about 8 months ago with new rad and water pump Now it keeps losing water sometimes it's fine for wks other times it will empty within days Now temp gage is going straight into red even with water in tank
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