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  1. Deville '69 472ci runs bad when reaches work temp.

    RWD 19xx-1984 DeVille and Fleetwood,1985-1996 Flee
    Hey! Ive got this unusual problem with my Deville that is when i first start it when its cold it runs and revs as normal. But after 10-15 minutes it idles a bit rougher and goes really rough when i press down the gas peddal. It just goes rougher and rougher until it stalls on idles. Still...