500, 472, 425, 368 Discussion, 1971 Deville 472 in Cadillac Engine Discussion; Hey guys, I have a 1971 Deville with a 472 in it. It got in a flood, but I dropped ...
- 06-09-10 11:40 PM #1Cadillac Owners Member
- Automobile(s): NONE
- Join Date
- Jun 2010
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.
- 06-10-10 08:32 AM #2Cadillac Owners Connoisseur
- Automobile(s): 70 Deville 77 Fleet 78 Seville 92 Deville 03 Deville
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- Feb 2007
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.