94' SLS Transmission Problem
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Cadillac Seville / Cadillac Eldorado Forum Discussion, 94' SLS Transmission Problem in Past Cadillac Vehicle Discussion; Got my first Cadillac, what a proud owner! Any Rate: overdrive wasnt engaging or slipping. but not a normal slip. ...
  1. #1
    seeron is offline Cadillac Owners Member
    Automobile(s): 94' SEVILLE SLS
    Join Date
    Aug 2012
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    1

    94' SLS Transmission Problem

    Got my first Cadillac, what a proud owner! Any Rate: overdrive wasnt engaging or slipping. but not a normal slip. after shifting to second and then 3rd it seemed at 40-45 mph that it would not go into od, kinda of just shutdown the transmission. Pull up to a light shut the car off and then it resets until after 45 shifting into OD. So, I just finish replacing the transmission, Same thing. Replaced the Central Command Center, (Replaced VSS Vehical Speed senor, Strange - IF unplugged Transmission works fine all speeds, but then you mess up the fuel burn ratio and that causes gas flooding). (Everything replaced) 12v to trans. (SAME PROBLEM) Is there a relay for the Transmission? Auto parts say no.

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  3. #2
    MacMuse's Avatar
    MacMuse is offline Moderator
    Automobile(s): 2006 STS N* 1SE
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    Welcome aboard seeron. I'm moving your post to the Seville/Eldo forum where you'll get a much better response. Good luck!

  4. #3
    Ranger's Avatar
    Ranger is offline Cadillac Owners Member
    Automobile(s): White Diamond '03 DHS (with floor shift)
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    Re: 94' SLS Seville Transmission Problem



    First think you should do is learn how to use the on board diagnostics. Read the DTC sticky at the top of the forum page. The come back and post any codes you have AND their definitions. Your code definitions will be in the OBDI link.

  5. #4
    N*Caddy's Avatar
    N*Caddy is offline Cadillac Owners Master
    Automobile(s): 1997 Cadillac STS (BOSE w/AUX In, Massage Seats, URPAS, "Z")
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    Re: 94' SLS Transmission Problem

    Also '94 has the option to override the shift points so you can shift the transmission whenever you want using the fan speed UP/DOWN buttons.
    That's how you test first, then you go nuts replacing transmission and such.

  6. #5
    gomarkiiv is offline Cadillac Owners Member
    Automobile(s): Cadillac
    Join Date
    Dec 2007
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    Re: 94' SLS Transmission Problem

    I have same issue. New solenoids and different valve body didnt fix it. I drive it in third gear with no problem. Just higher rpms cruising.

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