Re: Re: I need serious help... (Update)

From: Canucker Trucker (mal5@ualberta.net)
Date: Mon Jul 08 2002 - 17:00:07 EDT


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 > > >



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