Troubles with the 77 CDV - Page 7
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RWD 19xx-1984 DeVille and Fleetwood,
1985-1996 Fleetwood and Brougham Forum Discussion, Troubles with the 77 CDV in Past Cadillac Vehicle Discussion; Originally Posted by CadillacLuke24 FWIW there's a site where you can check for local stations that offer ethanol free brews. ...
  1. #91
    cadillac kevin's Avatar
    cadillac kevin is offline Cadillac Owners Master
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    Quote Originally Posted by CadillacLuke24 View Post

    FWIW there's a site where you can check for local stations that offer ethanol free brews.
    In alot of areas, you can't get ethanol free gas. In MO, you can only get it in the more rural areas.

  2. #92
    77CDV's Avatar
    77CDV is offline Cadillac Owners Master
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    Re: Troubles with the 77 CDV

    I live in CA: You VILL comply und you vill LIKE IT!!!!!!!!!!!!!!
    Garys and CadillacLuke24 like this.

  3. #93
    Bro-Ham's Avatar
    Bro-Ham is offline Cadillac Owners Connoisseur
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    Quote Originally Posted by 77CDV View Post
    I live in CA: You VILL comply und you vill LIKE IT!!!!!!!!!!!!!!
    You seem to be a willing follower of that sort of mantra.

    Did you ever get this car running right?

  4. #94
    77CDV's Avatar
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    Re: Troubles with the 77 CDV

    Yep! She runs perfectly again.

  5. #95
    jamespowers is offline Cadillac Owners Enthusiast
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    Re: Troubles with the 77 CDV

    Quote Originally Posted by 77CDV View Post
    I live in CA: You VILL comply und you vill LIKE IT!!!!!!!!!!!!!!
    I will not AND I won't like it! I do as little as I can. Spare the air day? Drive three cars and use the fireplace. Ethanol? I take all my cars to the place that has barely 10% of it in the gas. The pollcats here get a swift kick in the ass if they come around.

  6. #96
    cadillacmike68's Avatar
    cadillacmike68 is offline Cadillac Owners Enthusiast
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    Re: Troubles with the 77 CDV

    Craig, I'm glad you got it running again. I'm getting a 2nd spare fuel pump for my car. It's a one off year part, like so many 1968 items.

    As for the following:

    Quote Originally Posted by akimball442 View Post
    ... no..... EGR actually measurably reduces fuel economy, on all older engines. It's particularly obnoxious in diesel engines, but certainly doesn't do anything for performance or fuel economy in a gasoline engine.

    EGR is particularly evil on older high mileage engines because of the amount of carbon deposits it forms, eventually negating its own purpose because carbon deposits in the combustion chamber cause the pre-ignition condition (say that 3 times fast) that results in excessive NOx emissions to begin with.

    Now if everything on the engine was new- that would be a different story. It still would likely not cause a major increase in mileage, but it would definitely not cause as big of a decrease as a malfunctioning system. PS. most EGR systems are not operating optimally on 30+ year old engines. There are exceptions, of course. But I just replaced an EGR valve on a 22K mile 368 that was leaking.

    The systems used today are significantly better with electronic controls, but the standard vacuum operated EGR valve on pre-computer cars ONLY helps reduce NOx emissions (which is a good thing, don't get me wrong), and does so at the expense of performance and fuel consumption.
    THIS is why I stay way far away from 1973 thru 1991 cars.

    I have enough trouble keeping this 45 yr old Climate Control system working to go down that road as well.

  7. #97
    The Ape Man's Avatar
    The Ape Man is offline Cadillac Owners Connoisseur
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    Re: Troubles with the 77 CDV

    Glad that guy had the time to check each and every EGR system on every older engine. He must have been very busy.

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