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Attention: TDR Forum Junkies
To the point: Click this link and check out the Front Page News story(ies) where we are tracking the introduction of the 2025 Ram HD trucks.

Thanks, TDR Staff
  1. CRHardie

    What is your coolant of choice?

    I’m a diesel tech for a large pump rental company. We run many different engines Deere,Cat,Isuzu,JCB,Yanmar and a few Cummins in generators. Went to a JCB emissions class and we discussed the cleaning of EGR coolers because theirs plug pretty regularly. The instructor told us to fill it with...
  2. CRHardie

    What is your coolant of choice?

    I’m preparing to do the EGR clean and install the BD grid heater fix. Obviously if I’m removing the EGR cooler I’ll have the coolant drained and would like to replace it also. The Mopar coolant is not readily accessible so I was thinking of using Peak Final Charge. I also have access to John...
  3. CRHardie

    Check trailer brake warning

    It is amazing. I worked as a mechanic for a fleet of milk trucks for 10 or so years. It seems like all I did in the winter was fix lights. I have tried every method and product available and the salt and brine and whatever other chemicals they dump on the roads would still get into it
  4. CRHardie

    Check trailer brake warning

    I thought it didn’t come on when the trailer was connected. I honestly wish I could just shut it off completely. I have managed to back up for 40 years without one by simply using the mirrors. Plus it’s blinding in the dark when trying to use the mirrors. Anyway I found the problem. One of the...
  5. CRHardie

    Check trailer brake warning

    First off I’ll admit I haven’t done a lot of digging into this problem yet. 2015 2500 long box truck if it matters. Without a trailer connected every time I step on the brake pedal I get a ding and check trailer brake wiring message. With a trailer connected everything operates as normal except...
  6. CRHardie

    My turn P00AF code

    I just followed a link in the thread that shows my 2500 is covered for actuator replacement until 2029 or 150000 miles
  7. CRHardie

    My turn P00AF code

    I will look into that. Thank you
  8. CRHardie

    My turn P00AF code

    Engine hours are 2563 and 263 idle time. I plan to get it from Geno’s along with the EGR service kit while the coolant is drained. I just wish I knew how soon I needed to plan this. I may need to drive it to North Carolina at the end of this month. 11 hours from my house. Plus I’m in the middle...
  9. CRHardie

    My turn P00AF code

    A little history. 2015 2500 with 101,000 miles. I’ve had it a year and half and put 9000 miles on it. I always drive with the exhaust brake on weather towing or not. My thought is that way it keeps everything moving even if I’m not on it hard. Anyway it has seemed a little down on bottom end...
  10. CRHardie

    New batteries now low battery sign

    True but I’m assuming that because the alternator with the blown fuse had no load on it because it was not charging the battery the module that monitors that believed it had a low battery. The volt meter in the dash display said 13/14 volts when the truck was running but I was still getting the...
  11. CRHardie

    New batteries now low battery sign

    Just a follow up to help someone who reads this not be as dumb as I am I guess. I have discovered a couple things about this truck that I’ve owned for a year now. One I’m actually ashamed to admit but I just realized this evening it has dual alternators. Not sure why and I see no need for it but...
  12. CRHardie

    New batteries now low battery sign

    Thank you. That’s what I was thinking. I know my daughters Ford Escape has that
  13. CRHardie

    New batteries now low battery sign

    After 37 years making my living as a heavy diesel mechanic one would think I would do this properly. But as usual my stuff comes last because of working on others stuff to earn a living so I get in a hurry just before dark. Both batteries tested good with an actual OTC carbon pile battery load...
  14. CRHardie

    New batteries now low battery sign

    So my original batteries in my 2015 finally gave up. Well one did. The other still tested good. Anyway I installed 2 new Exide AGM batteries and am now getting the battery low message on the dash. I have 14.10 volts on each battery at the posts and battery voltage on the dash bounces between 13...
  15. CRHardie

    Tire rotation?

    Probably a dumb question and I will admit I haven’t looked in the owner’s manual. Rotated the tires yesterday on my new to me 2015 2500. It now shows front tire psi on the rear and rear on the front. Will it eventually realize the tires are in a different position? I miss the old days with a...
  16. CRHardie

    Mopar Fuel Filter Defective or Counterfeit?

    Something to think about with fuel filters. I’m a diesel tech for a large pump rental company. We buy direct from Baldwin so I asked the parts guy to get me a price on fuel filters for my truck. He miss understood and ordered them right from Napa thinking I wanted them for my service truck. We...
  17. CRHardie

    Is there a DEF filter?

    Thank you for taking the time to check for me. I’m very familiar with the heat issues. Had a customer last that was storing the def in the convenient compartment in the front of an enclosed pump. Right in front of the radiator with a forward blowing fan. Took me a little bit to figure that one...
  18. CRHardie

    Is there a DEF filter?

    A question for you guys that have more experience with these trucks. Mine is a 2015 2500 Is there a DEF filter in the system that can be changed? I’m a diesel tech for a pump rental company and our Deere,Cat and JCB engines all have a 1000 hour filter change recommendation for the DEF filter...
  19. CRHardie

    Best Floor Mats

    My new to me 2015 had the ram heavy duty floor mats. They are ok as long as those in the truck keep their feet on the mat. I bought husky molded mats and am very pleased with them. I like them better than the weather tech mats in my company truck and in our van
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