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Sedans Cadillac DeVille Cadillac DeVille Tires/Wheels
34 messages, Last post on Jan 06, 2008 at 8:58 PM
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Replying to: dhs1 (Nov 10, 2006 12:13 pm) 
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Replying to: powerflt (Nov 21, 2006 1:57 pm)
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Greetings all. I am the owner of a 2003 Cadillac DeVille, which I purchased on March 1st, 2007. The car was a lease return which only had approximately 13,000 miles on it at the time I bought it. It now has roughly 17,000 miles and ever since I bought it, it has exhibited a vibration at highway speeds which begins at about 65-68 m.p.h. and continues on from there. Unfortunately, I overlooked this on the test drive; after having the oringinal Michelin Symmetry tires balanced by the dealership four times, I was advised by the same that the only thing that would cure this vibration would be a new set of tires. Less than a week ago now, I dropped over $650 on a new set of Goodyear Assurance ComforTreds and while they do soak up bumps better than the Michelins, the vibration is still there at the same speeds. I took it back to the tire shop and asked them to check it out. The new tires are in balance and the technician involved said that he did indeed feel the vibration, and he stated his feeling that the problem may lie with the front brake rotors. He said that he felt a pulsation in the car when he applied the brakes from Interstate speed, which is what led him to believe that this was the problem. He even switched the tires front-to-rear and vice-versa and noted the same vibration coming from the front end. As many of you may know, replacing brake rotors is no cheap operation and if there is a "pulsation" when braking, it is very slight, so slight that I have to try hard to notice it and I am very sensitive to things like vibrations, squeaks, rattles, and other abnormal and undue automotive noises and phenomena. The technician, whom I am assured is one of the best in my area, also said that he cannot promise me that the front rotors are the source of the vibration, though his expert opinion seems to be that this is the case. He also said that it may be the lower control arms or a transmission bushing, though he noted no abnormal transmission behavior, nor have I since I've had the car. At any rate, and at the risk of attributing human qualities to a machine, I feel that this is highly inappropriate and unacceptable behavior for such a car. Would anyone have any advice or similar experiences with a DeVille of the same generation to offer? I would be very appreciative. Thank you.
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Replying to: acweck (Jul 03, 2007 7:48 pm) As for the vibration you are feeling, there again were several TSB issued in 03 & 04 about the problem. Something to do with a drive shaft balancing and other fixes. Problem is...not covered under recall. If you still have the original warranty or the extended warranty take it to a Cadillac dealership and they can fix it. The 03 DeVilles are great, most of the "bus" from the 00-01 models were worked out by 03. The vibration, SWP Sensor and the CSP Sensors are the only areas that I have had to address.
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Replying to: powerflt (Jul 05, 2007 5:51 am) It's interesting you should mention road-force balancing because that was what my Cadillac dealer did to my car four times with my old Michelin Symmetrys but to no avail. The Goodyear shop swears that the new tires are in balance; I'm going to have the dealer double-check this but my strong feeling is that it's something other than the tires causing this vibration. I can't imagine it's the brake rotors, especially since the car just rolled over 18,000 miles and even if the rotors were the problem, I would think that I would only get the vibration when I apply the brakes. The vibration happens when I'm going down the highway. I've been doing some research on my own into this issue and have come up with some possibilities to go over with the dealer when I go see them on Monday, July 9th. I'll be sure to mention the TSB regarding driveshaft balancing about which you wrote. Thanks again for your input and if you or anyone else has any ideas, I'm all ears. |
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Replying to: powerflt (Jul 05, 2007 5:51 am) |
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Replying to: acweck (Jul 03, 2007 7:48 pm)
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Replying to: rkmetz (Aug 01, 2007 8:36 pm)
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Replying to: powerflt (Aug 02, 2007 5:44 am) 
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Hello everyone, I am new to the Cadillac world having just purchased a 2004 Deville DTS. what a great car. I did a lot or research read all the horror stories about the N* but I am still glad I bought the car. I was scaning thru older post's and noticed everyone's concern about oil consumption. The reason the N* uses oil is because it is desinged that way. The N* is made to operate at high speeds all day long so the cylinders have an agggressive cross hatch pattern to keep oil on the cyl walls to keep the pistons well lubed. Now if I could just get rid of the vibration at hwy speeds All would be well. I'll try some of the things I've read in these posts and see if anything helps. 
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