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View Full Version : new thermostat, new waterpump(i think), temp gauge HIGH, lower rad hose still cold?


Indolent
01-28-2008, 11:35 PM
engine swapped not too long, driven for about 3 weeks, ka24de
clutch fan still has resistance
waterpump seems/looks brand new, weep hole not leaking
no leaks
new thermostat, just replaced
overheats/steams from radiator
lower radiator hose still cool/cold while upper radiator hose still hot?

THEMkris
01-28-2008, 11:39 PM
clog in radiator?

Indolent
01-28-2008, 11:42 PM
It seems more as if the thermostat doesn't want to open

vutony
01-29-2008, 12:32 AM
did you bleed it

nissanguy13
01-29-2008, 04:20 AM
lines or radiator clogged

240mph
01-29-2008, 04:25 AM
It could be your thermostat if installed incorrectly or it could be your radiator.
If you can make access for your hand to fit in between the gap you can feel the radiator and see if there are any cold spots.

g6civcx
01-29-2008, 05:53 AM
Looks like thermostat stuck closed. Did you install the jiggle valve up?

Vision Garage
01-29-2008, 10:36 AM
yea, i would say to check the thermo with jiggle up like g6 said. If not, check to make sure there is not clog in radiator or in lower hose.

Indolent
01-29-2008, 12:08 PM
I appreciate the info guys,
System bled
the jiggle valve was up, but looked different/reversed on the new thermostat (autozone/duralast) compared to the old one it came with, not sure if that means something
We just ended up rechecking the thermostat to see if the jiggle valve was up and it was, we took out the thermostat for a temporary fix for a day or two (needed the car out & for school) until my buddy has more time to mess around with the car to try to figure out this thermostat madness, seems to be fine, just takes awhile to warm up, i'll be sure to check those lines when I can

projectRDM
01-29-2008, 12:19 PM
Nothing to do with lines. If the car is fine without a thermostat, then you had an air pocket behind it. Reinstall and bleed until you're dead certain the system is full. It can take as long as a few hours.

tt99ol
01-29-2008, 12:24 PM
could be a bad radiator cap also, ive seen cars boil over because of it not holding any pressure but if the bottom hose is staying cold its probably the thermo, boil it in a pot, see if it opens

DJ_Sunrise
01-29-2008, 04:45 PM
Was it OEM parts you installed??? Or aftermarket? Aftermarket shit, and that's all it is, is SHIT, has a tendency not to work too well. Replace with OEM parts and you should be cool.

-Bart