1987 volvo 240 DL stalls out

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My 1987 240 DL Stalls when first started in the morning. It will start then when put in gear, it stalls out. Then when I restart it is fine. I t won't stall once its warmed up. Just stalls out the one time in the morning or when the engine is cold, seems worse in cold winter. But still just stalls after initial startup, then restarts and off I go. ANy ideas? Have had it for 2 years and otherwise runs great with regular maintenance. Plugs, wires, rotor, cap, flame trap, OD relay all newer. Thanks Bob2154