" Right after shut down clutch fan was free to turn by hand with minimal
resistance. It felt pretty much like it did cold."
Sounds like maybe your clutch fan is going out. It should have more
resistance to it once the motor is warmed up.
brian cropp
-----Original Message-----
From: DodgeDe@cs.com [mailto:DodgeDe@cs.com]
Sent: Thursday, May 22, 2008 5:18 PM
To: compuserve@dakota-truck.net
Subject: Re: DML: RE: Thermostat or worse
Ok after some testing this is what I know.
Idling with temp gage at about tdc or 210
Temp rad at the top hose side 178
about middle down that side 196
at the bottom that side 180
On the other side 98 at the top
91 middle
97 bottom
The accuracy of this could be called into question as I used a digital
thermocouple gage and held it as best as I could on the vain. But there
still is
quit a bit of temp diff between sides.
Right after shut down clutch fan was free to turn by hand with minimal
resistance. It felt pretty much like it did cold.
The Rad cap is ok I believe. I swap it with the Durango when this first
started and the Durango has been running fine with the one from the Dak.
So where to first a simple flush or off to the rad shop.
Thank
Bill
In a message dated 5/21/2008 2:57:13 PM Eastern Daylight Time,
bernd@dodgetrucks.org writes:
>
> The other thing that can cause this is a faulty radiator cap. (Also the
> least expensive route - plus, if you haven't changed it in a
> while...wouldn't hurt.)
>
> Yes...that's what I want you to check for.
>
> - Bernd
>
> -----Original Message-----
> From: DodgeDe@cs.com [mailto:DodgeDe@cs.com]
> Sent: Wednesday, May 21, 2008 1:22 PM
> To: compuserve@dakota-truck.net
> Subject: Re: DML: RE: Thermostat or worse
>
>
> Thanks for the reply Bernd,
> It will be Thursday evening before I can ck the temps.
>
> As for the clutch fan, cold it is the same as the Durango (spins easy but
> won't continue to spin on its own) I'll ck that more Thursday night as
well
> when I can get it up to temp.
>
> I was hoping it would be the t'stat but I wasn't feeling good about it
> that's why I asked.
>
> What will the radiator temps point to? clogged rad
>
> Bill
>
> In a message dated 5/21/2008 7:28:58 AM Eastern Daylight Time,
> bernd@dodgetrucks.org writes:
> >Doesn't sound like a t'stat. What are the temperatures across the
> radiator
> >core (inlet, outlet, top, bottom, center)? Any changes in temp across
> the
> >core that are more than 15 degrees? What about the fan clutch...does
> >it spin free/easy when at normal operating temp or is there some
> resistance?
> >
> >- Bernd
> >
> >
> >
> >-----Original Message-----
> >From: DodgeDe@cs.com [mailto:DodgeDe@cs.com]
> >Sent: Tuesday, May 20, 2008 6:19 PM
> >To: compuserve@dakota-truck.net
> >Subject: DML: Thermostat or worse
> >
> >
> >Hi group,
> >I'm having some heat problems.
> >So the truck is running a bit warmer than normal and under hard
> >acceleration
> >
> >gets quite a bit warmer. This is with the factory gage. It normal ran
> >two needles or so below center and it is now running dead center to a
> >needle or so warmer. On hard acceleration it pushes it to the high
> >mark of normal, After I let off it and take it easy it comes back to
> >the high side of center. It has the
> >
> >stock T-stat and I was thinking of changing it to 180 anyhow. This is
> >a 5.9 and yes the electric fan is on. It has less than 45K miles on it.
> >
> >So I'm looking for thoughts is it the T-stat or something worse?
> >
> >
> >
> >Bill
> >"We don't stop playing because we grow old; we grow old because we
> >stop playing."
> >-George Bernard Shaw
> >
> >00 cc R/T Hemi Orange w/shacker hood
> >72, 440 Six Pack Charger Rally
> >00 5.9 Durango (not orange)
> >
> >
>
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