1992 seville transmission drop out or speed sensor ? Please help
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Cadillac Seville / Cadillac Eldorado Forum Discussion, 1992 seville transmission drop out or speed sensor ? Please help in Past Cadillac Vehicle Discussion; The start up and running is very good. In fact the car is very clean. Very powerful 4.9 adn it ...
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    floridacatfan1 is offline Cadillac Owners Member
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    1992 seville transmission drop out or speed sensor ? Please help

    The start up and running is very good. In fact the car is very clean. Very powerful 4.9 adn it rides lie a cadilac. The issue is after it has warked up and at partial throttle the car startes to sputter and sharke as if the transmisison is slipping. It also allows the speedometer to drop tp zero when I all know it is travewling at 50. The speedometer bounces back and forth between the actual sapeed and the zero point. This occurs when fethering the engine. At some point it goes away but you cannot just pwer through it. When it is occuring you can throw it inot neutral dan then rev the engine with no prom to redline.

    Ideas ? If it is a speed sensor then where is it located besides "on the transmision" ?

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    eldoradoin's Avatar
    eldoradoin is offline Cadillac Owners Fanatic
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    Re: 1992 seville transmission drop out or speed sensor ? Please help

    Quote Originally Posted by floridacatfan1 View Post
    Ideas ? If it is a speed sensor then where is it located besides "on the transmision" ?
    If it's anything like a 4T80E, there are two sensors one is "on" the driveaxle on the passenger's side (VSS). You can get to it through your wheelwell. The other is "in" your transmission (ISS), which means a complete overhaul and BIG $$.
    Check your DTCs and you'll know which one it is.. Submariner has some excellent diagrams on here, so do a search.

    Are you getting the slip between gears 3-4? Check your fluid, levels and age first. To be quite honest, it sounds like a clutch burning out.

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    cctgene's Avatar
    cctgene is offline Cadillac Owners Fanatic
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    Re: 1992 seville transmission drop out or speed sensor ? Please help

    For starters you should check to see if you're throwing codes E024 or E075.
    These are the codes that relate to VSS problems.

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    Caddyshack100 is offline Cadillac Owners Connoisseur
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    Re: 1992 seville transmission drop out or speed sensor ? Please help

    The 4T60E transmission does not have an internal speed sensor, only one on the rear of the tailshaft held on by one bolt, as was spoken up above, easy to get at, however, I do not think that is the problem. If you pull the codes, it may lead you the problem, I am guessing maybe fuel or spark.

  6. #5
    gandall is offline Cadillac Owners Member
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    Re: 1992 seville transmission drop out or speed sensor ? Please help

    I am having the same problem. Did you ever find a solution?

    My car is fine until cruising at least 40mph, then rpm spikes while speedometer dips close to zero and the back and feels like tranny is slipping, but the slip feels smooth. Got trouble codes E053 - Distibutor signal interrupt, E075 - Intermittent VSS signal, I039 - CCR signal fault. One thing to mention is that I had the code E024 - VSS signal problem and it went away when I replaced the VSS, but the car didn't feel any different after changing it. Now it still has E075. I removed and checked the distributor; all connections are intact and I didn't see any bad wires. Check VSS wire continuity to ECM and there was signal. Do you guys think the CCR (Computer Command Ride) can cause this? Any ideas? Thanks.

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