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Cadillac CTS First Generation Forum - 2003 - 2007 Discussion, Transmission Fluid Change in Cadillac CTS Coupe, Sport Sedan and Sport Wagon Forums; Originally Posted by DanVB1 How much fluid did it take to refill after the filter change? I plan on doing ...
  1. #61
    DanVB1 is offline Cadillac Owners Member
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    Re: Transmission Fluid Change

    Quote Originally Posted by DanVB1 View Post
    How much fluid did it take to refill after the filter change?
    I plan on doing it this weekend.
    Thanks!
    I did it last weekend. About 7 quarts exactly came out and I put in 7 quarts of of Valvoline Dex/Merc Maxlife along with a bottle of Lubegard. At 65K, the pan was almost free of debris and the magnet only had a modest coating of shavings.
    The most difficult part was removing and re-installing the side fill plug, especially with a hot exhaust pipe a few inches away. The measuring bucket I bought at Lowes was also helpful as it gave me a good indication of exactly how much fluid I needed to refill.

  2. #62
    Myjohnson is offline Cadillac Owners Member
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    Re: Transmission Fluid Change

    Wow, just read the whole thread!

    Very informative posts.

    Is this basically the same process for a 06 2.8l?

    Is there anything wrong with changing the trans fuild at 30k miles? I'm assuming the more drain and fills I do the better it is for the life of my trans?

  3. #63
    DanVB1 is offline Cadillac Owners Member
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    Re: Transmission Fluid Change

    Quote Originally Posted by Myjohnson View Post
    Is this basically the same process for a 06 2.8l?

    Is there anything wrong with changing the trans fuild at 30k miles? I'm assuming the more drain and fills I do the better it is for the life of my trans?
    Yes, I have a 2006 2.8L and no, there is nothing wrong with changing it at 30K, just costs money. I used Valvoline Maxlife w/o stop leak and its working well.
    The only tricky part is refilling. I didn't put the car on 4 jack stands, but rather filled it while jacked from the left side with the exact amount that came out + a little more until the fluid dripped out of the refill hole. Be careful, the exhaust pipe is right next to the refill hole and soon after starting it gets hot.
    I used a fluid pump from Autozone with a clear tube extension to pump the jugs from outboard of the car. Also put in a bottle of Lubegard Platinum.

  4. #64
    family-man is offline Cadillac Owners Member
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    Re: Transmission Fluid Change

    you guys are from Toronto? where is the fill hole?, and does canadian tire sell the good auto trannsmission fluid i need for the trannie flush or do i need to go to the GM dealer only?

  5. #65
    74chvy glasshouse is offline Cadillac Owners Fanatic
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    Re: Transmission Fluid Change

    what did you use to clean thetransmission where the gasket was?? did you use any rtv silicone ?? is the old gasket reusable i think i read somewhere its a rubber reusable gasket.
    thanks

  6. #66
    74chvy glasshouse is offline Cadillac Owners Fanatic
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    Re: Transmission Fluid Change


    i went to check my transmission fluid and fluid poured out transmission is the same except the fill plug is in the rear where i put the arrow . is there something wrong ??? did i do something wrong ?? or too much fluid ?? the car was on in park. level
    also the plug that i circled looked mois twhats it used for

  7. #67
    X Rolls-Royce is offline Cadillac Owners Connoisseur
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    Re: Transmission Fluid Change


  8. #68
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    RoyalFlush is offline Cadillac Owners Enthusiast
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    Re: Transmission Fluid Change

    LOL rolls-royce i hear you. This is an easy job to do. Drain plug is on bottom of pan... the one on to the right of what you circled (big n shiny) with the torx screw is the fill plug. Drain first, drop pan(careful u dont break bolts like i did recommend using impact air gun/drill with some rust remover), remove old gasket, clean both pan edges and edges on the tranny where the gasket makes contact, clean the magnet on the pan, remove filter, replace filter make sure u get the old ring out of the old filter nozzle it usually stays stuck in the tranny, new filters usually come with a new gasket, put back on and tighten. replace tranny fluid till it spills, then turn car on and run it through the gears, then continue filling till it spills a little out, run it through gears once more and top off fluid till it spills a bit again and your done. Reading through the forums and planning it out is alot harder than jumping in and doing it... plenty of youtube videos on how to do it. 1+1 does not equal 3.
    jgclark likes this.

  9. #69
    74chvy glasshouse is offline Cadillac Owners Fanatic
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    Re: Transmission Fluid Change

    Quote Originally Posted by RoyalFlush View Post
    LOL rolls-royce i hear you. This is an easy job to do. Drain plug is on bottom of pan... the one on to the right of what you circled (big n shiny) with the torx screw is the fill plug. Drain first, drop pan(careful u dont break bolts like i did recommend using impact air gun/drill with some rust remover), remove old gasket, clean both pan edges and edges on the tranny where the gasket makes contact, clean the magnet on the pan, remove filter, replace filter make sure u get the old ring out of the old filter nozzle it usually stays stuck in the tranny, new filters usually come with a new gasket, put back on and tighten. replace tranny fluid till it spills, then turn car on and run it through the gears, then continue filling till it spills a little out, run it through gears once more and top off fluid till it spills a bit again and your done. Reading through the forums and planning it out is alot harder than jumping in and doing it... plenty of youtube videos on how to do it. 1+1 does not equal 3.
    thanks
    i was actually just trying to check the fluid level but when i took out the plug the torx 45 fluid poured out is it over filled?? i plan on doing the filter change in a couple weeks the one i circled looks like fluid might be seeping thru whats that used for? thanks again

    ----------

    also my fill plug is in toward the back of the tranny where i put the arrow if it makes a difference

  10. #70
    X Rolls-Royce is offline Cadillac Owners Connoisseur
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    Re: Transmission Fluid Change

    Quote Originally Posted by RoyalFlush View Post
    Drain plug is on bottom of pan... the one on to the right of what you circled (big n shiny) with the torx screw is the fill plug.
    You can't both be right on this one.

  11. #71
    74chvy glasshouse is offline Cadillac Owners Fanatic
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    Re: Transmission Fluid Change

    Quote Originally Posted by X Rolls-Royce View Post
    You can't both be right on this one.
    well what i really wanted to kno was if something was wrong since alot of fluid came out when i took out the fill plug??

  12. #72
    X Rolls-Royce is offline Cadillac Owners Connoisseur
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    Re: Transmission Fluid Change

    I haven't worked on the transmission, but I think you took out the wrong plug, 74.

    RoyalFlush says the plug he calls the fill plug is the shiny torx in your diagram, not the one at the other end that you are calling the fill plug. I thought I heard there was a fill plug on top of the casing, but maybe that was for the manual.

    The transmission would never be overfilled, normal service interval is 100,000 miles or 50,000 under severe operating conditions. So you taking something off the casing and fluid coming out...I think that's the wrong plug.

    The service manual is in the FAQ/DIY sticky at the top of the listings. There is all you need to know in the transmission section. Give 'er a read.

  13. #73
    74chvy glasshouse is offline Cadillac Owners Fanatic
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    Re: Transmission Fluid Change

    thanks im pretty sure i took out the right plug its the one toward the rear on the transmission #36 on the diagram it says it could be in either location it said it depends on model he said it might have been on a slight incline i jacked it up put it on stands but it seemed if i put all jackstands at same height the rear would be a lil higher im gonna try again in a couple days with the jacks at all the same height

  14. #74
    X Rolls-Royce is offline Cadillac Owners Connoisseur
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    Re: Transmission Fluid Change

    Good luck, sorry I don't know more. I'm trying to learn everything there is to know about the CTS, but I'm not there yet.
    I'm writing a book on the CTS. It doesn't even have a Chilton's repair manual, yet.
    My book is a combination buying guide and repair manual, with lots of pictures.

  15. #75
    carrnuttdave is offline Cadillac Owners Connoisseur
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    Re: Transmission Fluid Change

    You'll notice Chilton doesn't print a manual for any Cadillac not even a Catera. Because for most people, if you can afford a Caddy you will pay a technician to fix it.

    ----------

    I take it back I checked their website they do print them for devilles and sevilles

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