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View Full Version : 04 dodge quad cab temp ??

Mr. C
07-28-2010, 12:11 PM
My sons truck seems (as of late) to want creep up to almost the 3/4 on the temp gauge, then will go back down in time to half or just barely over. then repeat.
Is this more likely to be the water pump or maybe a sticky/faulty thermostat??
I am probably going to just replace the thermostat first and see if that fixes it, but thought i would ask here in case someone has had the same issue and what was the fix.

Thanks in advance
Riverbound
07-28-2010, 12:33 PM
Sounds like a thermostat.
Mr. C
07-28-2010, 01:22 PM
So he just called me and says when he is at freeway speeds:D it runs up towards 3/4 when he hit traffic(literally stop and go) it drops back to half. Does this change your opinion any?
pronstar
07-28-2010, 01:50 PM
So he just called me and says when he is at freeway speeds:D it runs up towards 3/4 when he hit traffic(literally stop and go) it drops back to half. Does this change your opinion any?

That doesn't make a lot of sense, I'd do thermostat first, then check the temp sender after that.
Gelcoater
07-28-2010, 02:49 PM
mine did that a couple times,then the torque converter took a shit,go figure.
River
07-28-2010, 09:23 PM
Bad clutch Fan...
ductape1000
07-29-2010, 07:55 AM
Bad clutch Fan...

x2
Mr. C
07-29-2010, 08:02 AM
Bad clutch Fan...

x2

:D:D do I grab it and if it stops it's bad..... and/or if i lose a few finger tips its good and move on to the next choice.:skull

Seriously, how do I tell if the clutch fan is bad??

He already has the thermostat so that will go in tonight.
pronstar
07-29-2010, 10:28 AM
Seriously, how do I tell if the clutch fan is bad??



Dunno...but it seems to me you'd overheat in the city, and not the highway, if the fan clutch was bad...?
ductape1000
07-30-2010, 07:45 AM
The fan clutch is designed to spin freely when the incoming air is moving faster than the engine speed turning it. With current overdrive tranny's, the engine speed runs slow. If the fan clutch is bad, it blocks air going to the radiator at speed because it is turning slower than the air coming in. At slow speeds it moves more air than what is coming in, as well as the engine is not producing as much heat.
With all that bs being said, I'm not sure about testing it. It has been a while since I have needed one, and I don't want to steer you wrong.
Good Luck.:cool:
Mr. C
07-30-2010, 08:08 AM
Thank you for the explanation. I appreciate the input. looks like I'm making sure our local store has one in stock..
pronstar
07-30-2010, 10:02 AM
Thank you for the explanation. I appreciate the input. looks like I'm making sure our local store has one in stock..

If it is the fan clutch, make sure you have/rent a removal tool.
They are a complete PITA without it.