P0128 Code Could the fix be covered under PT Warranty

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cableguy_hd

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Danville, Va.
Ram Year
2020 Ram 2500 CTD
Engine
6.7 Cummings
CEL came on Saturday after NYD coming back home from a short trip. 100 mile round trip, I was pulling an enclosed trailer back home with furniture. Outside temps unusually cold for us. I noticed the light on about half way home. Temps wont go above 165. Cant take it back to the dealer where I bought it for a week. Just curious if any parts are covered under powertrain warranty or not? I have a few months left on it.
 

nlambert182

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Huntsville, AL
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2018
Engine
6.7 Cummins
I don't think anyone can answer that specifically. Read your warranty paperwork. Cummins standard warranty is 5 year/100k powertrain...

You'll need to talk to the dealer to find out when your warranty started and when it's up AND have them diagnose it to determine if it's covered. That code can be caused by 4-5 different things.

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