Idling/coasting problem

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Chrismb5.7

Member
Joined
Apr 14, 2019
Posts
56
Reaction score
18
Location
Dandridge, TN.
Ram Year
2004
Engine
Hemi 5.7
So I'm selling my 04 1500 and I've fixed most of the problems I've encountered, but I have one more thing I wanna try to fix. When the weather started getting real cold around the end of December and into January, when the truck warms up and I come to a stop, it idles below 500rpms. If I touch the gas or put in any other gear it idles back up to the normal 6-700 range. Also coasting downhill at 15-35mph, the truck surges between 500-2000rpm. Only sometimes with the air conditioner on it doesn't idle low when I come to a stop. I'm so confused.
 
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