Is there any way to test the temp sensor or sending unit? I do know that it
was getting hot, because when it would get really hot (250+) I could feel
the overflow boiling and I was getting coolant spewing all over everywhere.
Jason
""Canucker Trucker"" <mal5@ualberta.net> wrote in message
news:agcuh2$km5$1@bent.twistedbits.net...
>
> my only suggestion was already mentioned previously .. the Temp sensor or
> sending unit...
>
> Maybe the water pump...?
>
> --
> Canuck
> --------------------------------------------
> Y2K 4.7L 2wd 5spd
>
>
>
> ""KCDak"" <KCDak@JnJAnderson.com> wrote in message
> news:agctbf$q6c$1@bent.twistedbits.net...
> >
> > Well here is how today has gone. This morning, I went and got the stuff
> to
> > flush my cooling system and also got a new radiator cap. When I got
home
> I
> > started the radiator draining while I removed the upper and lower fan
> > shrouds. Once these were removed, I sprayed out the radiator from the
> > backside the best I could, however, I did not remove the electric fan so
I
> > sprayed around and through that the best I could. Next I removed the
195
> > t-stat and then ran lots of fresh cold water through the system with the
> > t-stat out and the radiator drain open. I then put the Robert Shaw 180
> > t-stat back in that I had removed about a week or so ago. I put the fan
> > shrouds back together, and then did a chemical flush on the system.
After
> > that was complete, I did a back flush to make sure that everything was
> well
> > cleaned out (I know, probably overkill). I then filled the system with
> > fresh 50/50 mix of anti-freeze and water, added a new radiator cap, and
> then
> > finished by driving it about 5 miles. When I got back, I bled any air
> that
> > was in the system, topped off the coolant, and then drove it about 25
> miles.
> > I came home, ate lunch, and then went for a 100-mile drive to fully test
> it.
> > The first 85 miles or so was completely highway miles at about 70-75 mph
> and
> > the engine seemed to run perfect. The outside temp here is around 95
> > degrees with relatively high humidity. For the most part it ran around
> > 195-205. Once I exited the highway and was stopped at a stoplight I
> noticed
> > that the temp started to rise to around 240 or so. I turned off the A/C
> and
> > turned on the heat. That seemed to help. The temp came back down
around
> > 210. I turned the A/C back on and the temp rose once again. I then
left
> > the heater on for another few miles while driving through neighborhoods
> and
> > then temp would rise again. This time I turned the A/C back on and the
> temp
> > dropped, but not by much (still above 210). I turned the heat on one
last
> > time and there was no heat coming from the system and the temp didn't
> > fluctuate. When I pulled in my driveway, I turned the A/C back on and
set
> > there for a couple of minutes and the temp just stayed right around 240.
> > Any ideas? None of the hoses seem to have collapsed. I can't find any
> > leaks, however when the engine cools off and I open the radiator cap, it
> > appears that I need to add more coolant. . Is that normal, or should it
> be
> > full to the cap? What should I try next?
> >
> >
> >
> > Thanks for all your help,
> >
> > Jason
> >
> >
> >
> > '00 Sport Quad 4.7L 4x4 3.55, Autolite 3923's, BFG AT T/A,
> > IAT Adjuster, 360° Air Intakez, Robert Shaw 180° thermostat,
> > Line-X sprayed bed and nerf bars, Roll-n-Lock tonneau
> >
> >
> >
>
>
This archive was generated by hypermail 2b29 : Fri Jun 20 2003 - 12:05:01 EDT