July 24, 2010I have an 06 5.9 with only an afe intake, pmt, and 5" turbo back exhaust and I am curious as to what my temps are supposed to be. my truck constantly runs 200 degrees without a load. If i get on an incline or tow a trailer, it jumps to 210. My defuel on my pmt is set at 210, so it gets pretty annoying constantly jumping in and out of defuel while towing. My question is, what do most of your trucks run at? Is this normal? Is my defuel level just set too low? I am pretty sure that my truck has the 190 thermostat in it, would it be as easy of a fix as just throwing a 180 thermostat in it?
Forums : Diesel Engines : Temp-too high when pulling? (849 Views)
July 24, 2010Those numbers are completely normal 200-210 operating temperature. I woud set your defuel at 220. With you pressurized cooling system and proper coolant percentage the boiling point is 235=250 degrees.
July 24, 2010that is completly normal, my 02 ran 210 on 90 degree day pulling another 01 cummins on a 28ft gooseneck.
July 25, 2010set your defuel to 220 like mentioned above 210 is quit normal for towing
September 19, 2010Normal. I tow a 14000lb 5th wheel. 60 degrees or 120 degrees it runs 210
September 19, 2010Mine runs between 210-218 when pulling uphill...under 200 usually.
September 19, 2010210 is completely normal for your rig pulling a sustained load. The thermostat ony controls the minimum temperature and will not affect the operating temperature under load unless it is failing. You should be protected upto 230 degrees if your cooling system (cap and Coolant concentration)is working normally.
September 20, 2010I tow everyday and 210 to 220 is normal even with the temp around here at 90 to 95!!
September 20, 2010A 180 thermostst does not saeem to work in a third gen. I think the fan is programmed to run the higher temp, so even when it is trying to run a cooler temp, the fan counteracts it. On a second gen, a 180 is nice. I put them in quite often and lower the operating temps. I rarely see 190 anymore with a 180 thermestat.
September 27, 2010How do you set your defuel temp? Thanks
October 3, 2010I just got back from a trip out west towing 8500lbs. On inclines, temp went to 210F but EGT`s were sometimes above 1400. If you haven`t done so already, put in a pyrometer.