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3rd Gen. PowertrainDiscussion of components that are directly involved in the power production and all that is needed to get and keep the truck moving . Engine , Transmission Ect...NO ADVERTISING
It's getting back into the 90s here now and I am noticing my truck wants to run a little hotter than normal. Most other vehicles I have owned once the temp get's to operating temp it holds still. My 04.5 Ram 2500 wants to wave around quite abit. It appears to get as hot as 205-210 before it starts heading down. It usually spikes when driving slow, but at idle or highway speeds it sticks at about 190. The coolant is full both in the bottle and the rad and the water pump was replaced about 4 months ago.
Please let me know if this is a normal condition or what might be going on.
good question. I thought they would have replaced it when they did the pump. I have changed thermostats before. Are they as easy to replace on this thing?
i may be one of the few but i believe that the t stat on these things are a breeze to change pop open a beer and you will have it done before you finish the beer (if you have basic mechanical skills that is)
*edit, mine also does that too (temperatures) but my fan clutch is on its way out
Mine does that too, but i suspect its the fan clutch on mine too...im thinking of installing electric fans as helpers to help that problem...ive changed my tstat twice...
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2003 Dodge 5.9 6spd 4dr dually, Smarty. Isspro pillar gauges.(My truck)
2003 Dodge 5.9 mild build on a 48RE, 4dr. Smarty Jr. Glow Shift gauges(dads truck)
Mine does that too, but i suspect its the fan clutch on mine too...im thinking of installing electric fans as helpers to help that problem...ive changed my tstat twice...
Mine does it also.
Last year it was because of the tranny cooler leaking and clogging it up.
It also was some temperature sensor just above the thermostat. Changed it and the thermostat.
It can also be the radiator is plugged with bugs. I keep a screen on mine and it still gets bugs.
It also can be the fact that the outside air does not give it relief.
As far as fan clutch, it could be. Mine has been going out for 3 years now.
The thermostat is really easy to change, just make sure to replace it with an original Cummins one as others have reported issues with aftermarket thermostats.
I have the Flex-a-Lite electric fans and I'll see 194 degrees all day long even in hot weather and 70 mph. Steep hills and traffic jams can raise it to 205-210 momentarily but it returns to 194 once you're moving at speed. I use Evans Waterless Coolant which I believe helps control temperatures. The Evans coolant has a boiling point of 375 degrees so you will never see a boil over situation.
Just for reference, I have an Ultra gauge plugged into my obd2 which reads engine Temp digitally and while pulling my trailer 2 months ago (80 deg. outside) it did hit 203 deg but went back down to 195 deg. which is normal temp for my truck. Without pulling the trailer I see just under 200 deg at times with the hot weather now here in AZ.
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2005, BD Power 48 re, Smarty Jr, Fass 150 Titanium, Auto Meter gauges, Air Raid CAI, Pusher intake horn, train horns, Firestone air bags, No CAT, BD OD Lockout, Lo Jack w/early warning, Ultra Gauge.
So I pulled a trailer with a tractor, about 8k lbs and the temp got up to about 220. I got home and scratched my head. Decided to pull the thermostat and drove it for about 30 minutes. Interstate and city the temp never got above around 175. At least that's what I guessed... It never got about the quarter mark on the guage. I am guessing my truck doesn't have a problem cooling itself. I put the thermostat in water and it didn't open fully until the water boiled and it did so very slowly about 10-15 seconds to open all the way. Does that sound like the culprit to you guys?
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