1971 Deville 472
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500, 472, 425, 368 Discussion, 1971 Deville 472 in Cadillac Engine Technical Discussion; Hey guys, I have a 1971 Deville with a 472 in it. It got in a flood, but I dropped ...
  1. #1
    caddy7c is offline Cadillac Owners Member
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    1971 Deville 472

    Hey guys, I have a 1971 Deville with a 472 in it. It got in a flood, but I dropped the oil and tranny fluid and the car starts great and moves good. However, at an idle it has just a little miss (not bad at all) but when I try to gas it, it picks up until about half throttle then it starts sputtering and back firing and normally dies, but will always start right back up. I have tried a new distributor and carburator and neither of them made a difference. Was wondering if anyone had any suggestions what else to try? Thanks.

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  3. #2
    cadillac_al is offline Cadillac Owners Connoisseur
    Automobile(s): Cadillac 78 Seville, 78 Coupe de Ville, 92 Sedan de Ville
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    Re: 1971 Deville 472

    It sounds like it could be running out of fuel. It probably needs a fuel pump. Since it is backfiring too I would still suspect the points a little. If the fuel pump checks out or gets replaced, any other problems will be the points.

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