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Cadillac CTS Maintenance and Repair

1356

Comments

  • The ctx has two small pressurized things that look like shock absorbers that assist in opening and keep the trunk open. Mine seem to have lost pressure becauseit does not keep open. It closes as soon as you let go. Does anyone have a fix that does not require taking it in for repair? How about a compression spring around the shock like thing? The shock like thing has words on that say it is pressurized at 500 lbs. The pressure must be gone for the trunk to fall closed, but is it dangereous to remove?
    Need advice. Thanks
  • srs_49srs_49 Posts: 1,394
    They are just like gas pressurized shock absorbers, only on a smaller scale.

    You should be able to order replacement units from the dealer or from an after market supplier.

    No, they are not dangerous to remove - just do it with the trunk lid fully open. But do not damage or try to open up the strut itself.
  • I have a question concerning the coolant idiot light which has been coming on, I have a 2004 CTS with 30,000 miles and change the oil every 5000 mile. I am usually handy around motors but for some reason I can't find a radiator cap to check the level of fluid, the cars temp gauge is reading normal. The coolant tank is only an inch low so I will add the dex-cool, but I don't believe this should cause a problem. Anyone run into this problem.

    Mark
  • robh3robh3 Posts: 157
    Mine is an '06 with 15.5k miles. No coolant light at this point. I frankly have only been under the hood to check the oil and to add windshield washer fluid, so I can't say from memory where the coolant reservior opening is.

    Sorry I can't help further with this one. Does the owner's manual not show where it is? It's probably not the actualy "radiator cap", but rather a separate opening so that the radiator cap doesn't have to be openened to add coolant.
  • After looking at the owners manual it does say that the light will come on if it is low on fluid, the only place to check though is the reservoir, there is no radiator cap. The thing is the light only came on intermittent and the fluid in the reservoir was only an inch low. Thanks for your input.
  • My 2005 CTS developed the same problem at 31K last week. It the water pump required replacement. It had a small leak.
  • robh3robh3 Posts: 157
    I experience the same noise that appears to be a rubbing of the tires when making tight turns at low speed. Can't seem to verify what it is exactly. But I have a theory.

    Mine is an '06 CTS with the sport package option including 18" wheels and different Bridgestone tires. (Just under 16k miles and the tires do not have excessive wear).

    I notice the "rubbing" noise when leaving home in the morning and when pulling into the parking spot at work. I actually believe it might, and I repeat the word "might", be caused by the inboard rear tire (i.e. when turning to the right; the right rear tire) rubbing on the epoxy-type painted surface of the parking garage floor of the building I work in. Then when i get to work - they recently re-sealed the whole parking lot with blacktop sealant - I think that's causing the rubber tire to make that rubbing noise at slow speeds over the epoxy sealant when turning sharply into a parking space.

    Sounds strange, but I believe - or at least I want to believe - that is the cause. The CTS has a very tight turning radius compared to most vehicles (which is a really convenient thing). When turning sharply at low speeds, that means the inside rear tire is actually turning somewhat on its axis rather than just rolling forward over the road surface. Hence, this could be the cause, or at least "a" cause, for the rubbing noise, because the tire rubber is actually being rubbed against the surface its on with these tight turns. Very few vehicles of this size have the tight turning radius the CTS has (not sure if the '08 and newer CTS' have the same tight turning radius).

    Rob
  • junetjunet Posts: 6
    Rob, I did take my car to another dealer and they told me that it was the fluid in the rear end that needed an additive. They changed the fluid and added what ever and the noise went away for a about 6 months. NOW its back and worse. I do not believe its the tires at all. I have replaced mine since. I have to make another appointment again and its a real pain for me because I have to drive about 50 miles to a dealer.
    June
  • robh3robh3 Posts: 157
    Interesting. Mine seems to be intermittent. Didn't do it this morning pulling out of my building's garage, but it did it when pulling into a parking spot at work.

    Do you have you copy of the the dealer service form/receipt from when you had the fluid added 6 months ago? I am curious if they wrote in what fluid they added. The more details I have, the more I can just tell my dealer "do this". I'm assuming it'll be a warranty job...

    Rob
  • junetjunet Posts: 6
    Yes I have the receipt and will have to get it out of a file. Yes it was warranty work done no charge. Mine didn't do it all the time either, in fact it wouldn't do it while I was there but the guy said he knew what it was. Now it does it all the time.
  • robh3robh3 Posts: 157
    I see. Good to know it was warranty work.

    If you are able to find the work order in your files it would be helpful to know what they wrote down that they did (although the fact that it only lasted 6 months is discouraging).

    If the guy at the dealer knew what it was then it's apparently a relatively common issue with the pre-'08 CTS model.

    Thank you.

    Rob
  • paopao Posts: 1,867
    if the dealer changed the fluid....and added the additive....my question is have you had any other differential fluid changes done....if you have an LSD...and Im betting you do...and you had a fluid change out and the LSD additive was added in with the change...then you probably have some differential wear....and that what might be causing the rubbing sounds....it might also be the clutch packs in the diff as well....

    the rear difs were a weak area in the early model CTS's....and carried over into the 06-07 MY Pontiac Solstices...which use the same rear diff.......08 and beyond seem to correct the problem.....Im betting it is the rear differential.....
  • robh3robh3 Posts: 157
    Brought the car in today for an oil change. Mentioned the rear "rubbing" sound. The service manager knew exactly what I was referring to, and mentioned the LSD and clutch packs, etc. and need for a fluid change and additive.

    So, we added doing the rear end fix job to the list. He said it works on 8 out of 10 vehicles, and if not, then the rear diff. needs to be replaced (all warranty).

    Obviously a known issue, and at least they own up to it and will address it under warranty. Driving a brand new DTS loaner car in the interim...
  • paopao Posts: 1,867
    at least the service manager is competent and is aware of ongoing issues.....Im betting you will end up with a new diff...keep us advised..
  • I bought a 2005 STS for my song, and it has the same problem as all of yours, it uses oil like crazy. Maybe if we get enough people and signatures from people with the same problem we might get a legal case against GM and get the rightful recall we deserve. please let me know what do you think
  • robh3robh3 Posts: 157
    So far so good with the fluid and additive work. No noise. I will certainly be bringing it back in if, and as soon as, the noise returns.
  • The only level check is at the surge tank. If it is below the line cold you should add coolant. If it is below the line when it's hot - let it cool down first! - then add coolant until it's at or slightly above the line. As you accelerate hard, the surge tank will pull coolant from the bottle and drop the level setting the light if it's low initially. Best idea is to keep it full but find the leak and fix it. Not always easy but it needs to be done. Good Luck, I love my CTS.
  • I have a 2007 CTS. I had the creaking rubbing noise from the rear, best and only heard when driving slowly ~ 5 mph in a parking garage or quietly out of the driveway.

    There was a rear end differntial recall about a year ago, because some had worse noise or even locked up. Everyone with that recall notice should get it done. After the recall was done, the noise was better but still there.

    Recently I mentioned it to a different dealer and they were more aware of the problem. They added more lube to the rear and it's quiet now.
  • robh3robh3 Posts: 157
    Mine has been fine since the dealer did the work 1 month ago. Time will tell if it remains quiet.

    It seems the dealers are quite aware of this issue and there is no fuss or stress about performing the "fix" work on warranty. That's good.

    Rob
  • junetjunet Posts: 6
    Rob, I thought mine was ok too. Wait a few months it will be back. I have to take mine in again.
  • I have a 2007 CTS. I had the rear pinion seal replaced and the fluid changed. After a few months, the grinding began. They changed the fluid again, this time adding a conditioner. The dealer said that if that didn't fix it, they would replace the differential. It's been about 18 months and the grinding is back, mostly during sharp parking lot maneuvers. I plan on having them put a new rear in this thing after the holidays. Amazing, a torque converter and now a new differential. At 28K miles. And I don't drive it hard. Doesn't exactly inspire confidence, does it?
  • cdnpinheadcdnpinhead Forest Lakes, AZPosts: 4,573
    The differential issue on this car is a well-documented somewhat common problem. One hopes they've redesigned it such that the replacement will solve it. Haven't heard of it lately on the newer CTSs.
  • junetjunet Posts: 6
    This is EXACTLY what my car is doing. 2007 28,000 miles CTS. I am going back now for the third time! 1st. was recall 2nd. noise. 3rd. itssss backkkk !!! Its very inconvenient for me, the dealer is 50 miles away and they don't work on weekends...
  • paopao Posts: 1,867
    the differential is a WELL documented issued on the CTS as well as the Pontiac Solstice...as the share the same differential.......if the auto is equipped with Limited Slip Diff...when the fluid is changed..it must included an additive specifically for the diff along with the basic fluid......if the dealer doesnt add the fluid.....it will not fix and in fact cause more problems...

    if you are experiencing that grinding sound at low speed while making a sharp turn...try figure 8s in the parking lot.....its the clutch packs grinding.....and the dif needs to be replaced at this point....first TSB is replace the seal and fluid.....second is drain fluid and replace as needed....and third is replace the dif.....

    09 CTS owner here with no problems...as well as 06 Solstice owner...three trips for the dif for warranty repair....on the 3rd trip the dif was replaced with an 08 MY version...and fixed the problem.....
  • robh3robh3 Posts: 157
    Thank you for all of this information.
  • I have a 2005 CTS V . I had the same problem, I took it to a dealership, they had to replace the clamp on the lower radiator hose. I had a spring clamp, they replaced it with a screw style that you manually tighten and that fixed the problem. My mother in law has an 2004 cadi and just had the same issue-they told her she needed new water pump-replaced it same problem still exists. I'd try the clamp much cheaper than pater pump or radiator repair. I think my mother in law needs clamp replaced. The leaky waterpump historically is a problem with corvettes I know, and the V has a corvette Z06 engine in it -.
  • driving a 2005 CTS V about to buy new tires, wondering what others have found to be the best- balancing between ride and longavity???
    Any input would be appreciated.
  • K9WillK9Will Posts: 26
    yes i have the same problem with my 2004 3.6 auto trans if i figure it out i will let you know
  • K9WillK9Will Posts: 26
    my 04 trans slips when you first put it in foward gear after sitting for awhile, but after it warms up a little it pulls perfect & shifts perfect until you park it for a night in cold temps. it will most likely do it again. has anyone had this problem thanks
  • junetjunet Posts: 6
    Well, They did the exact same thing again this time. Change the fluid and the noise went away. The manager said this may have to be changed a few times for it to stop doing this. I don't believe that story!!! It's been a month and I have not heard it come back yet but I am waiting for it because I think it will. Sure is a pain in the neck to have to drive 50 miles.
    June
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