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Cadillac CTS First Generation Forum - 2003 - 2007 Discussion, Trans cooler lines pulled out of radiator??? in Cadillac CTS Coupe, Sport Sedan and Sport Wagon Forums; At the bottom of the radiator. You need to take the plastic pan under the engine off to see them ...
  1. #91
    carrnuttdave is offline Cadillac Owners Connoisseur
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    Re: Trans cooler lines pulled out of radiator???

    At the bottom of the radiator. You need to take the plastic pan under the engine off to see them

    ----------

    Look up from under the front of the car. You can pull down on the open end of the plastic pan and kinda see them. But to really look at them you need to pull off the pan
    odthetruth and odthetruth like this.

  2. #92
    AKJasonT is offline Cadillac Owners Member
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    Re: Trans cooler lines pulled out of radiator???

    So I've been stalking these threads for about a year and a half and finally decide to join. I've read a lot of very helpful things here. I bought a 2003 CTS luxury sport in December 2010, and although it's given me some problems I really like this car (when it works). Here's my latest dilemma...

    Past history--(in case you're bored)
    1 - About a week after I bought this car (@ 70k miles) the serpentine tensioner pulley locked up and melted off. I realized the dealer had changed the pulley, but placed the original metal washer back on. This actually clamped the pulley down and kept it from spinning. After a new belt and pulley I was back on the road and occasionally got the "power reduced" message. One weekend I decided to pull apart the intake and realized that when the belt came off - it tore the pigtail off of the intake sensor. Once in a while the bare wires would hit the frame and the car would freak out. As a temporary fix, I cut the exposed wire off and the car ran in its "limp" mode until I replaced the pigtail. Thus this problem solved. 2 -The next work I did was an intake cleanout / tune-up. When I was changing the spark plugs I noticed that one of my boots was blown out (replacing them this week). I did NOT buy the plugs with the resistors. After doing this I've had the "starting disabled" message twice in about 6 months. I haven't done this fix for it yet because it hasn't been a real problem. Maybe the new coils will fix this? (got rear-ended around here) 3 - Later the crankshaft sensor died. Boy I'm glad the car doesn't shutoff at 90+ mph. You can actually feel the car "buck" while you're driving. If you feel this, you know the car is going to shutoff if you drop below 40mph(ish). Sit on the road until the sensor cools off and you're back on your way. Surprisingly easy fix (assuming you get the right sensor - Advance Auto bolt pattern didn't line up so I got to do it twice). No problems since. 4 - regulator broke - not a bad fix, but the door now rattles. I'm going to put some foam in there to see if I can stop the rattle. 5 - Replaced the timing belt (and not the tensioners). After about 4 weeks of driving (4000 miles) the timing belt started making noise. I figured it was the idlers and tensioner (because I didn't change them) so I ordered the idlers and tensioner and did the job again. about another 4k miles later I get the same dirty sound from the timing belt. This is where the fun begins...

    I'm now at 125k miles. I took everything apart to check this tension on the timing belt (hate that dirty noise) and noticed that the tensioner was good, but one of the idlers was a little loose (the new idlers have offset holes to adjust tension). I turned the idler a bit to get more tension and put everything back together. As I was putting the intake back in I bumped the rad inlet and it broke off. SO, I took the day off of work, had a new rad shipped to me and installed it. Everything seemed to go well and it was a VERY easy job compared to others I've done. The tranny lines seemed to pop back on securely so I filled up the tranny fluid and coolant and went for a test drive. I still hear the dirty sound coming from the timing belt (why can't I get this one right?? I've done about 5 others). Anyway, as I pull out onto a main road I open it up to test things out. As I'm passing a few people I notice a HUGE streak of tranny smoke blowing out behind me. I pulled over and saw that the driver side tranny line had popped off. Ok, not a bad fix (I think) - I'll drive the old Jeep to work for a couple days. Got the Cadi towed home at about 11pm last night (which the neighbors loved). So as I'm driving my Jeep home today I'm braking up to a red light and I hear the pin in the differential snap! So I got the Jeep towed home today (thank you USAA roadside for 2 free tows)! I opened up the rear diff (Dana 35) and find the pin in 3 pieces (but the gears in good shape). Hopefully I can just throw a new pin in. So that was the fun of the past 4 days, which brings me to a semi short conclusive question about the Cadi's tranny lines.

    I'm assuming the problem is the tranny line fittings themselves since I bought the best rad the shop offered (it even came with the tranny line disconnects). I'm positive I plugged that thing in and gave it a good tug too. Everything seemed ok until the test drive (except the noisy timing belt). I did put a little more tranny fluid than I should have. It was dripping out (maybe streaming) when I sealed it. I only added about 3/4 of a quart which is probably close to what I lost when I changed the rad.

    I called the dealer today and they want $260 for the tranny line "kit" which includes 2 lines and some other junk. I asked the guy for a part number and he said "we don't give out part numbers". So much for a free market. That comment alone made me want to find another way around the dealer. I don't really want to do the aftermarket cooler because it's not as clean. Anyone know the part number for this kit? How difficult is the tranny line removal / replacement for the CTS? Any comments or suggestions? I'll continue looking for the part online. Hopefully I can avoid the dealer. Thanks.

    Ps - After all of this nonsense I still REALLY like the CTS. Very easy car to work on, fun to drive, and nice design.

  3. #93
    odthetruth's Avatar
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    Re: Trans cooler lines pulled out of radiator???

    An external cooler such as one of the B&M supercoolers would work for this kind of setup. You can use the lines that run out of the trans, and simply connect them to the cooler and plug em back.

    They could pop off if its overfilled. Contrary to whats been said, the trans does produce some pressure on the lines. You'd have to double ring clamp em down, almost.

    I don't know what the part number for the tranny line kit would be. You could ask Rippy... although I don't think a external cooler part # exists for the american versions.

    One of the B&M Supercoolers would work, would bolt up with no issues, simple 2 lines. Then just plug up the 2 connections on the rad side, and you could run external.

    [2006 CTS-V - "The Vee Baby Seamus"] - 372rwhp / 361rwtq
    Pacesetters | Off Road Adapters | Cutouts | Stock Airbox | Stock Catback
    BMR AWK | CS Diff Block | Short Shifter | UMI MM | Revshift TM

  4. #94
    X Rolls-Royce is offline Cadillac Owners Connoisseur
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    Re: Trans cooler lines pulled out of radiator???

    Understanding that you want the clean look of the original, Dale (simple2me) said that he had a hard time with the radiator because there are two o-rings on the inside of the transmission cooler that were the dickens to get on right. Maybe you left them out. Tell you what, you can't use the PM feature yet so I'll send him one and see if he'll help you. He swapped a Vue engine into his 2006 to replace a broken 3.6 liter and he knows a buttload of stuff.

  5. #95
    AKJasonT is offline Cadillac Owners Member
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    Re: Trans cooler lines pulled out of radiator???

    Ok, thanks for the quick responses guys. I'm pretty sure I saw the o-rings in there when I installed the new rad. I was trying to pay attention to details so I wouldn't have to do the job twice. Thanks for the help!

  6. #96
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    Re: Trans cooler lines pulled out of radiator???

    Quote Originally Posted by AKJasonT View Post
    Ok, thanks for the quick responses guys. I'm pretty sure I saw the o-rings in there when I installed the new rad. I was trying to pay attention to details so I wouldn't have to do the job twice. Thanks for the help!

    The O-rings I had a problem with were not on the lines themself. They were actually inside the radiator on the cooler (large O-rings) itself. They are used to seal the cooler to the radiator tank so antifreeze doesn't leak out of the radiator around the transmission lines. I happen to notice one cut when I was looking at the cooler trying to figure out why it just flopped around inside the radiator. I can honestly say GM screwed the pooch on that design. Worst design I've ever seen. Getting the old O-rings out and the new ones in was a job. I'm sure when this happens the dealership just recommends changing the radiator.


    Use this link to look up any part you want. http://parts.nalleygmc.com/ I stumbled upon this website and found it to be very helpful.

    XRR- I didn't get to make any passes in the CTS. I worked on the Blazer all day. I changed the spring rate on the rear coil overs and it through the whole suspension out of whack so my day consisted of wrenching and watching. I finally got it leaving somewhat straight but it's nothing like it was before changing the springs out. I have more adjusting to do. Here's a video of the Blazer http://youtu.be/q6Skz1eXW04. Once I get the suspension straightened out and the old man learns to drive (hasn't raced since 1979) I'll hook up the goofy juice (300 shot of nitrous) and see what this baby does. For now he'll have to be happy with mid to high 10's.
    AKJasonT and AKJasonT like this.

  7. #97
    X Rolls-Royce is offline Cadillac Owners Connoisseur
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    Re: Trans cooler lines pulled out of radiator???

    Thanks for dropping in, Dale. I wanted to hear how the CTS trapped, bummer.

    So the Blazer kept pulling right because of the spring ? Funny announcer on the PA system.

  8. #98
    simple2me's Avatar
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    Re: Trans cooler lines pulled out of radiator???

    I'll take it down the track soon. Races are every weekend right now so I'm sure I'll get a chance soon.

  9. #99
    X Rolls-Royce is offline Cadillac Owners Connoisseur
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    Re: Trans cooler lines pulled out of radiator???

    Horse racing just started for us. Looking forward to seeing your Cadillavoo in action.

  10. #100
    simple2me's Avatar
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    Re: Trans cooler lines pulled out of radiator???

    Quote Originally Posted by X Rolls-Royce View Post
    Thanks for dropping in, Dale. I wanted to hear how the CTS trapped, bummer.

    So the Blazer kept pulling right because of the spring ? Funny announcer on the PA system.
    The Blazer is a 4link suspension. I had it perfectly dialed in before but when I changed the spring rate it got everything out of whack (preload wise). Everything needs to be dialed back in (4link preload & shocks) to match the springs now. I've almost got it but we've only made 6 passes since putting the springs in. I'll have it dialed in next weekend for sure and she'll leave like she did before. Look at the other videos, you'll see how straight she was before.

    ----------

    Quote Originally Posted by X Rolls-Royce View Post
    Horse racing just started for us. Looking forward to seeing your Cadillavoo in action.
    The horse racing track is 15 minutes from my house (Delta Downs Casino and Race Track). I don't gamble though so I never go.

  11. #101
    mpprice is offline Cadillac Owners Member
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    Re: Trans cooler lines pulled out of radiator???

    2003 CTS 88K miles - Mine happened a couple of days ago. Driving down the street and noticed plumes of white smoke behind me. Pulled over to find the engine would rev but car would not move. Puddle of oily substance under the front of the car. Hour and a half later the tow truck (second one since the first didn’t want to drag me from behind – so he called for a flat bed) got me to my mechanics garage and he put it up on the lift. Hose dangling on driver side of engine compartment was kind of obvious clue that this was the failure.

    They removed the radiator and purchased an aftermarket replacement – looks pretty much the same. On the OEM there were aluminum threads that seem to have failed. The fitting just blew out. No sign of corrosion so I’m concerned about over pressure in the transmission? ? ?

    They think that getting things back together and filling the transmission will get me going again. I’ll know later today if that is the case.

  12. #102
    odthetruth's Avatar
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    Re: Trans cooler lines pulled out of radiator???

    Quote Originally Posted by mpprice View Post
    2003 CTS 88K miles - Mine happened a couple of days ago. Driving down the street and noticed plumes of white smoke behind me. Pulled over to find the engine would rev but car would not move. Puddle of oily substance under the front of the car. Hour and a half later the tow truck (second one since the first didn’t want to drag me from behind – so he called for a flat bed) got me to my mechanics garage and he put it up on the lift. Hose dangling on driver side of engine compartment was kind of obvious clue that this was the failure.

    They removed the radiator and purchased an aftermarket replacement – looks pretty much the same. On the OEM there were aluminum threads that seem to have failed. The fitting just blew out. No sign of corrosion so I’m concerned about over pressure in the transmission? ? ?

    They think that getting things back together and filling the transmission will get me going again. I’ll know later today if that is the case.
    Its not unlikely. As long as you didn't suck any coolant back into the transmission, the trans can still work.
    External cooler would be a good way to go, in case this happens again, its insurance to not have to replace a trans.

    [2006 CTS-V - "The Vee Baby Seamus"] - 372rwhp / 361rwtq
    Pacesetters | Off Road Adapters | Cutouts | Stock Airbox | Stock Catback
    BMR AWK | CS Diff Block | Short Shifter | UMI MM | Revshift TM

  13. #103
    X Rolls-Royce is offline Cadillac Owners Connoisseur
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    Re: Trans cooler lines pulled out of radiator???

    No sign of corrosion, huh ? That hose blowing off is an extremely common occurance. I have studied the problem intently and suspected that corrosive environments played a big part. I was also kicking around the possibility that an incorrect coolant had been added to the system. Aluminum is used extensively in the system and the wrong coolant could corrode the fitting from the inside. Its more of a problem in some years than others, which throws a monkey wrench into trying to figure this one out. Its always the radiator fitting that lets loose.

  14. #104
    RippyPartsDept's Avatar
    RippyPartsDept is offline Hi, I'm Chris - Please Read My Signature
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    Re: Trans cooler lines pulled out of radiator???

    possibly due to coolant not being changed frequently enough and becoming corrosive?
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  15. #105
    X Rolls-Royce is offline Cadillac Owners Connoisseur
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    Re: Trans cooler lines pulled out of radiator???

    Quote Originally Posted by RippyPartsDept View Post
    possibly due to coolant not being changed frequently enough and becoming corrosive?
    That could be it, but the book calls for coolant at 150,000 miles for the 2006's and the radiators are failing before then.

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