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Sedans Buick Lucerne Buick Lucerne
1886 messages, Last post on Oct 16, 2009 at 6:56 PM
You are in the Buick Lucerne Forum. Your Hosts are pat & karens
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Replying to: cxsrobb (Nov 30, 2008 3:18 am) |
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Replying to: imidazol97 (Nov 30, 2008 6:58 am)
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Replying to: cxsrobb (Dec 02, 2008 12:01 am) |
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Got a great deal on a leftover new Super ($31.7k out the door) when my '07 DTS was pulled ahead by GM. Ride has softened somewhat with break-in, but the Magnetic Ride Control is still firmer than in my DTS. Knew I would have to replace the standard Bridgestone tires in order to make the ride acceptable. Replaced tires with Goodyear Assurance Comfortreds (235/55/18) which adds about 1/2 inch to the tires diameter and about 1/4 inch to the car's ride height. The tires made a big difference when compared to the hard riding and noisy Bridgestones. The car, at 2,600 miles, gets about 18 mpg combined vs. 20 mpg with the DTS. This may be due to the performance tuning and the final drive ratio. Expect that a DTS Performance Edition would get the same mileage as the Super. Favorite Features: MSRP about $13k cheaper than similarly equipped DTS. Same platform and factory as DTS. Quieter and smoother ride after switching tires, but DTS is still smoother and quieter. Rides much smoother than my '06 Q45. Seats almost as comfy as those in the DTS. Blind Spot Alert system. Low NVH levels. Suggested Improvements: Dump the Bridgestones. DTS had three seals around each door; Lucerne has only one and one-half (exterior noise more hushed on DTS). DTS and Lucerne both need the Blind Zone alert system. Update both cars for the next decade. Improve fuel economy. A six-speed automatic would be nice. Use soft feel plastic on lower instrument panel like the DTS; the Lucerne has cheap feeling hard plastic there. |
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I just bought an 06 Lucerne CX with about 21000 miles on it. After taking it on a road trip of about 650 miles I notice that there are times when one feels a mild vibration in the front end. The tires have obviously been rotated as directed, but there seems to be quite a bit of outside edge wear. And, when starting from a stop sign the engine sometimes coughs silently before powering up. We certainly enjoy the ride over the road, but notice the car is not as smooth over the bumps in the city compared to our 94 Le Sabre, nor is the gas mileage as good. We used to get 30+ mpg on our trips through Iowa (hilly) between Wisconsin and Nebraska with the Le Sabre, and now are lucky to get 27 with the Lucerne. Like the car otherwise, though.
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Replying to: cjk (Feb 08, 2009 6:33 pm) You should get the car on a four wheel alignment rack. May have been in a minor accident causing some suspension misalignment.
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Replying to: 62vetteefp (Feb 09, 2009 4:24 am) Lucerne vibrations You aren't clear as to the type of vibration you are sensing. There were some that are chassis/tire related and I assume that's what you're describing. If you are saying it's tires or wheels... The original tires may not be that good at rolling round under load. They may have worn unevenly due to slight misalignment and not having been rotated at 8000 mi intervals, e.g. You need to have a _good_ store or dealer do the alignment and put the settings spot on the recommended middle. You don't want the typical tire store saying "it's within the specs range, so it's okay." You also want to have the tires and rims balanced on a Hunter 9700 Road Force balancer by a technician who knows how to troubleshoot GM vibration. The machines have settings and you want it balanced at the most sensitive setting. If the tires and wheels have more than 12 units (pounds of force) then you may feel it due to the light alloy metals used in the A-arms that move with the wheels and the stiff chassis. The solution GM found in 2001 and on was that the tires weren't rolling round under load. One side crushes more than the other and the center of the wheel bounces up and down. This has been a known factor since at least 1977 for GM in smoothness of their cars. GM went to Michelin tires on the LeSabre/ Park Avenue, and various Cadillacs in that era because of out of round tires. They sent Michelins to replace tires that came on the cars to help fix the problem. Another factor can be a motor/transmission mount. I believe that's in the other discussion linked above. Because you say the motor seems to cough when you first tip the throttle into it, I suspect the motor is moving and you're feeling the end of that movement when the mount hits a solid part or catches. Someone knowledgeable about fixing vibrations needs to look at the car. YOu might check around with different dealers to see who has some experienced technicians. http://www.hunter.com http://hunter.com/pub/product/balancer/4159T/index.htm http://www.gsp9700.com/pub/search/findgsp9700.cfm Read the info about wheel balancing with Road Force 9700 in these three links. The last one lets you find who has a 9700 in your area. Personally I'd check with a Buick dealer. Actually I'd put new Michelin tires on the car; I've only bought one set that wasn't Michelin in decades and that was a 77 Olds which had GM specification tires on it that were Goodyear. I was trading the car soon. You might check on the warranty on the car if it transfers... Was it 4 years 48000 miles?
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Replying to: imidazol97 (Feb 09, 2009 5:39 am) This seems to also be backed up by the simple solution that most people have reported as solving it - namely, changing the crap OEM tires for something decent. |
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Has anyone noticed this? No obvious leaks and gas cap is on tight. It is noticeable sometimes when entering or exiting the car.
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Replying to: kcwolfpack59 (Feb 26, 2009 10:14 am) Could be a hose off somewhere. Could be a seep around a clamp on the hoses connecting the filler and the tank. Could be a fuel seep under the hood. Needs to be checked. If you are able to crawl under the car and look in places such as the filler tube and the lines that run along the bottom of the car from the tank and fuel filter forward to the motor that's what needs to be done. Else take to dealer or trusted shop.
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