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  1. 2013-2018 Non-Powertrain
    I have a ‘17 Cummins with 140k on it. I purchased it used and the heater didn’t work much at all. I researched and decided to flush the heater core first. I did get junk out of it and ran CLR through it. That got me a bit of heat from the vents. After that, it seemed to quit heating again. So I...
  2. 2013-2018 Non-Powertrain
    wondering if anybody had any input i have a 2014 2500 6.7 that since i bought it the heat has barely worked. I took a thermal imager to see if the lines for the heater core are different and what i found was inlet was only 160 degrees and return was 140. so i figured to change the thermostat and...
  3. 2019+ Powertrain
    Just put in a fleece cheetah turbo, it’s been a long process getting old one out, had to take manifold out with it and decided to upgrade to a new manifold while it was out. while putting everything back together I made the mistake of mixing the ports for the ccv vent and the coolant… so the...
  4. 94-98 Powertrain
    okay guys bare with me for the long post but any info is helpful. my 12v started over heating an come to find out the previous owner had a oil cooler go bad and he replaced it but didn’t flush the system. i flushed everything with dawn dish soap an put a brand new thermostat and water pump on...
  5. 07.5 - 09 6.7L Non-Powertrain
    Here is a video of my 2008 3500 dually leaking coolant from a strange place lol. Any help would be great! Thanks
  6. 2013-2018 Non-Powertrain
    While the heat is out of control outside, my truck decided to blow out some coolant from the reservoir cap/overflow area. Immediately my coolant low light came on. I let the truck cool off and added coolant, probably too much but my light is still on and still having coolant leak from same...
  7. 2013-2018 Non-Powertrain
    Yesterday on my way to the trails, my coolant low light came on. I could see it in resivor but it was at the bottom. I topped it off and the light never turned off, got to the trails and rode for 5 hours and started it up and it was gone. Started driving home with the trailer loaded down and...
  8. 03-07 Powertrain
    Easy, no mess, way to remove trapped air from coolant system. 1. Place a hose clamp on the small coolant hose that connects the top of radiator to the coolant tank. This small hose typically doesn't seal well on the radiator so a hose clamp here will ensure you keep a "closed" coolant system...
  9. 2010-2012 Non-Powertrain
    Is it considered pro active or SOP to change your thermostat while servicing your cooling system? Flushing or changing the coolant is what I'm referring to. While on the subject of thermostats, the 2010-2012 models are the only ones that use the 200⁰ thermostat. I've searched, and not found a...
  10. 2010-2012 Powertrain
    I have a 2012 2500 that has been acting strange. I went for a drive today and it started overheating and blowing cold air (while the cab heat was on high, full blast). I know that's due to it losing coolant, so I pulled it in the garage and turned it off, coolant poured out. Though it wasn't...
  11. 2010-2012 Powertrain
    Howdy 2012 Ram 3500 6.7 Cummins I tow a lot for hotshotting but I've ran into an issue that I haven't found anywhere else on the internet. Towing on a super windy day with 12k behind me up a very slight grade, I start to overheat all the way up to 220 before i could safely get to the shoulder...
  12. 98.5-02 Powertrain
    Did a search and couldn't find exactly what I am experiencing. Sorry if this is in the wrong spot or has been asked a million times. Was having a coolant temp issue so changed sensor and thermostat. Now My coolant temp is reading all over the place constantly. Always bouncing around. It shows...
  13. DDP Motorsports
    Just in time for Summer! The Fleece Performance coolant bypass kit for the 2019+ RAM equipped with the 6.7L Cummins! Their patent pending design seamlessly integrates with your truck for an OE fit-and-finish. Benefits: Lowers coolant temperature at the rear cylinders Ensures consistent...
  14. 2013-2018 Non-Powertrain
    About to head to AK. Coolant needs a top off. can’t find the recommended Mopar. From what I’ve been reading is you can use Zerex g05. So my question is can i use Zerex G05 in my 2014 6.7 even though the manual says OAT and Zerex G05 is HOAT? I was told to stay away from the Zerex Dec cool...
  15. 03-07 Powertrain
    So i have replaced water pump, fan clutch, radiator, thermostat but anytime i give it some throttle she gets up to 210-220 and won’t cool down. i can’t seem to figure out this issue and i had also did a whole system flush with coolant, still nothing.
  16. 98.5-02 Powertrain
    I have a 2001 mostly stock 24v only 172k miles. I was just recently experiencing a wastegate that was stuck closed that's what I thought. It ended up being the Pitcock air goes through to get wastegate. So it was building a crap ton of boost like 30 -35 and barely hitting it almost 25. Well, I...
  17. 98.5-02 Powertrain
    I have a 2001 mostly stock 24v only 172k miles. I was just recently experiencing a waste-gate that was stuck closed. So it was building a crap ton of boost. I realized the missing coolant like 2 days ago the boost started 3. Today I filled up the Reservoir completely with coolant and checked...
  18. 98.5-02 Non-Powertrain
    Hello- I have a 98.5 with a stock radiator. Here and there over the past few days, my radiator will be dripping after my morning commute. I found (and tightened) a fairly loose hose clamp on one of the 3/4”(?) lines near the left motor mount, basically directly underneath the left headlight. I...
  19. 98.5-02 Powertrain
    Was checking oil and noticed it kept going up, I suspected fuel in oil and smelt it and it smells just like oil. So I think its coolant, its not very bad at all but definitely made the oil a little thinner and lighter. I notice coolant going down all the time but didn't think twice because of my...
  20. 2010-2012 Non-Powertrain
    So just like my last topic, Im not sure where to start. This truck was always my daily, but starting in Nov21 I quit my job and started using the pickup to hotshot oilfield pipe. Limiting this topic just to my coolant and heating problems: Now that its winter, the problems are really showing...
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