Welcome to the Dodge Cummins Diesel Forum, the fastest growing Dodge Diesel Community on the internet.
You are currently viewing our boards as a guest which gives you limited access to view most discussions and access our other features. By joining our free community you will have access to post topics, communicate privately with other members (PM), respond to polls, upload content and access many other special features. Registration is fast, simple and absolutely free so please, join our community today!
If you have any problems with the registration process or your account login, please contact contact us
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.
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
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.
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?
The AutoGuide.com network consists of the largest network of enthusiast-owned enthusiast-operated automotive communities.
AutoGuide.com provides the latest car reviews, auto show coverage, new car prices, and automotive news. The AutoGuide network operates more than 100 automotive forums where our users consult peers for shopping information and advice, and share opinions as a community.