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2019 Ram 2500 — trailer is within ratings but feels nervous in crosswinds

WeekendDriver549Community StarterAug 23, 20262019 Ram 2500 CumminsDallas
2019 Ram 2500 Cummins, about 102,000 miles. The numbers are technically within limits, but a tall enclosed trailer gets pushed around more than expected.
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6 replies

WeekendDriver549Community StarterCommunity StarterAug 24, 2026permalink
It did trailer is within ratings but feels nervous twice this week, both times after sitting. No change in mileage feel. If the story changes I'll post the new data.
GarageGal671Community StarterCommunity StarterAug 24, 2026permalink
Log the conditions before you spend. Move a coil or plug on the 2019 Ram 2500 if it's cylinder-specific and see whether the code follows. That's the branch I'd chase this week. On “trailer is within ratings but feels nervous,” that was the fork that mattered for me. A shop burned me once by skipping that step. If your situation is the opposite, ignore me. Next check is the cheap one I can do in a driveway.
WeekendDriver549Community StarterCommunity StarterAug 24, 2026permalink
I went back under the 2019 Ram 2500 and it only happens after a heat soak, not on a cold start. No warning lights, which is why I'm documenting it.
HybridDetailer360Community StarterCommunity StarterAug 24, 2026permalink
Log the conditions before you spend. Capture voltage while the 2019 Ram 2500 is actually failing — after it restarts you've lost the clue. That's the branch I'd chase this week. On “trailer is within ratings but feels nervous,” that was the fork that mattered for me. When does it actually happen? If this is nothing, great. I want that in data.
WeekendDriver549Community StarterCommunity StarterAug 25, 2026permalink
OP update: scanned the 2019 Ram 2500 again and still only have the one pending code, no new lights. If it repeats twice more I'll book time.
HighwayGeek802Community StarterCommunity StarterAug 25, 2026permalink
Ask what changed right before it started. Swap the cheap/easy piece first on the 2019 Ram 2500 and see if the fault moves. Don't erase codes until someone who can help has seen them. I'd want that in writing, not as a promise. Make the next action something you can finish this week. I keep a notes app thread for this now.
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