94 SLS Smoked/Smelled and now Won't Start
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Northstar Engines and System Technical Discussion Discussion, 94 SLS Smoked/Smelled and now Won't Start in Cadillac Engine Technical Discussion; Pulled into the garage and turned off the key on my '94 SLS, but something kept running under the hood, ...
  1. #1
    haws is offline Cadillac Owners Member
    Join Date
    Oct 2005
    Location
    Stanwood, WA
    Age
    61
    Posts
    2

    Unhappy 94 SLS Smoked/Smelled and now Won't Start

    Pulled into the garage and turned off the key on my '94 SLS, but something kept running under the hood, like a pump or something. Not the fan. I tried restarting it and it wouldn't start. After about 4 or 5 minutes, I was removing a battery terminal to stop it, and there was some smoke and foul smell coming from the left side of the engine (Pass side) about mid engine. It stopped before I got the cable removed, but the car still won't start, turnover or notheing. Has plenty of juice. Anyone ever experience anything like this and if so, what was it?

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  3. #2
    mcowden is offline Cadillac Owners Connoisseur
    Join Date
    Jun 2003
    Posts
    1,164

    Re: 94 SLS Smoked/Smelled and now Won't Start

    Quote Originally Posted by haws
    Pulled into the garage and turned off the key on my '94 SLS, but something kept running under the hood, like a pump or something. Not the fan. I tried restarting it and it wouldn't start. After about 4 or 5 minutes, I was removing a battery terminal to stop it, and there was some smoke and foul smell coming from the left side of the engine (Pass side) about mid engine. It stopped before I got the cable removed, but the car still won't start, turnover or notheing. Has plenty of juice. Anyone ever experience anything like this and if so, what was it?
    It sounds like an idle speed control motor to me. If it's burned up and not letting enough air past the throttle blade, the engine will not start. Read the post at the very top of this forum "Got codes?" and go through that process. Let us know what you find in there and someone will probably be able to help you figure it out.

    Have you ever cleaned the throttle body? If there was a bunch of gunk built up in there, it could have made the ISC motor's job harder and helped it burn up. The TB should be checked and/or cleaned about every 30k miles, but I check mine at every oil change because it's quick and easy.

    A few thoughts to get you started. Let us know what the codes are.
    Mike

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