Recent content by JJC72

problem is back, so not as good as I preached for them. Now replacing the ECM with a 5/6 week lead time!! And still this will be a shotgun troubleshooting event!! UGH!!

Hannah, problem is back again. Same issue, truck reboots at hiway speeds without notice. Now dealer thinks it is a bad computer, and was told over 30 days to wait for parts. Loss of truck for over a month this time? Can you assist at all? Truck is at Allen Mello CDJR in Nashua, NH. Thanks

Dealer replaced Alternator, so far so good! Huge thanks to ALLEN MELLO CDJR of Nashua. Technician's detailed troubleshooting diagnostic information was best i have seen in a long time. Very thorough. Thank you

Alternator replaced, so far so good. Had great tech at dealership, very descriptive and thorough in his troubleshooting diagnostic data. Best i have seen in a long time at a dealer.

Does anyone know what drives the DPF gauge on a 2020? Is it a pressure differential, temperature differential, or just time/mileage? Mine just came up to @ 10 percent for the first time in 11K miles? Does anyone know what drives the DPF gauge on a 2020? Is it a pressure differential...

dealer stated they found an internal short inside alternator causing ECM power to short intermittently. New alternator on order, 3 days or so. Lets keep our fingers crossed.

Thank you, and sorry for the lack of proper etiquette on posting VIN. Not sure how to private message? Anyway, dealer called and said worked with RAM engineering and troubleshot it down to a defective alternator. Said ECM's power was being drawn down by an internal short in alternator...

Hannah, my VIN is [REDACTED] , and Truck is currently at Dealer being looked at. They stated they need time to investigate, but nothing found so far. Thank you for your help

Dealer stated codes were for loss of ECM power/communicatuon. So that makes sense. Now just to find out why?

10/2020 Ram 2500, 6K miles. Towing 8K down hiway, cruise set to 72mph, smooth road, tow/haul mode engaged, exhaust brake set to auto. All of sudden it was like the ignition switch was turned off and back on real quick. Cruise control dropped off, tow/haul mode and exhaust brake modes dropped...

10/2020 RAM 2500 6.7 6K miles. Towing 8K, cruise control set at 72mph, tow/haul mode engaged, exhaust brake set to auto, smooth hi way. All of sudden it was like ignition switch was quickly selected off/on. Cruise dropped off, tow/haul dropped off, exhaust brake dropped off, alternator...

10/2020 Ram 2500, 6K miles. Towing 8K down hiway, cruise set to 72mph, smooth road, tow/haul mode engaged, exhaust brake set to auto. All of sudden it was like the ignition switch was turned off and back on real quick. Cruise control dropped off, tow/haul mode and exhaust brake modes dropped...

my truck makes the same noise, build date of 10/20 with large dimple pump. What was your final resolution if any? Thanks

Here is Cummins service letter attached recommending 10W30 Rotella for temps above 0 degrees. Can't go wrong following their guidelines.