Last post on Sep 07, 2011 at 7:13 PM
You are in the Buick Lucerne
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Buick Lucerne, Sedan
#1849 of 2217 Humming from fuel pump
Mar 24, 2009 (9:50 pm)
After a very long drive in my 2009 Buick Lucerne, which has 10,000 miles, it had a very loud humming noise from the trunk, the source of which was later identified as the fuel pump. Two mechanics listened to the humming, which by then was much quieter since it is much reduced in city driving, but both have no previous experience with this condition. One said that the fuel pump is a very powerful machine and that it's possible that when the tank is low on gas it makes more noise since it is no longer submerged in gas which would insulate the sound. My feeling is that it's not normal for it to be humming at all to begin with, much less when it's practically screeching, but the two guys have nothing to compare with, and so I'm left with this noise coming from the trunk. Does anyone know anything about this noise or have had experience like this?
#1850 of 2217 Re: Oil change [bajan1]
Mar 25, 2009 (11:38 am)
Follow the advice of the manufacturer/oil life system. The service adviser's advice is designed to drum up business for the dealership. Oh, and use synthetic oil, not mineral oil. The synthetic oil is better in every way except a marginal increase in price which is well worth it.
#1851 of 2217 Re: Humming from fuel pump [bajan1]
Mar 25, 2009 (12:31 pm)
Your car is under warranty. Have the service manager listen to the pump noise with a low tank if that's what it takes. If he doesn't agree there's something needing work, then ask for the dealership manager to ride with you. Do it before 12,000 miles.
I wonder if something is touching somewhere outside the tank and transmitting a normal vibration so it's amplified inside the usually quiet car.
Or the pump is going bad
Or the pump needs to be removed and checked--through the opening in the trunk that makes it a relatively easy job.
Warranty. And do it before 12,000 when they expect to take care of little things like alignment and balancing. Then after that they begin to feel those are owner problems from normal wear and tear.
#1852 of 2217 2009 Buick Lucerne
Mar 31, 2009 (2:14 pm)
I Bought a 2009 Buick Lucerne that had 7000 mi. on it
after a few days I noticed a low rumble from the rear at
about 58 to 65 mph and now at lower speeds. I took it back
to the dealer and they put a complete new exhaust system on it.
It seemed to help until I got it home. It's still there.They can't figure it out.
It's more like a viberating rumble. thanks for any help Jim
Apr 10, 2009 (12:49 pm)
I have 2006 buick Lucerne CX with a fast left turn signal light and a left rear tail light that needs to be replace. How do I replace the tail light and is there a fuse or something that may be causing the fast left turn signal. thanks for your help.
#1854 of 2217 Re: tail lights [willieb22]
Apr 10, 2009 (4:02 pm)
This is exactly what it is made to do. If you burn out a bulb, it causes the blinkers on that side to operate faster. (sensor detects the change in resistance from a burned out bulb and operates the blinker at 2x the normal speed)
There should be an access panel in the trunk. It uses standard automotive bulbs.
#1855 of 2217 Re: 2009 Buick Lucerne [jimmy53]
May 01, 2009 (6:53 pm)
Jimmy you have been had just as I was. I bought an 07 Lucerne CXS (a demo) with 6000 miles on it. From the get go I noticed a vibrating/rumble at various speeds. I took it back to the dealer around 8 or 9 times. They rotated and balanced the wheels; didn't help. Took it back again and they did the same thing again; same result. Took it back again and they said the front rotors were out of round (aka=warped, so they turned them). Didn't fix problem. Took it back again and the dealer said one of the wheels was bent; they replaced it and still no fix. Took it back again and they road force balanced the tires and determined that I had two bad tires which they replaced. No good. Took it in and met with the GM factory rep who said it didn't vibrate that much. He said he had seen them much worsse and told me to turn up the radio - with a straight face. I told him I didn't listen to the radio as it was a disrtraction. Also, both of the front seat belts were defective as was the tire pressure monitor as was the fuel sender as was the window washer fluid ssensor.. When I got home, I parked the car in the drive and for some reason left it running and reved the engine a little at a time and when it got to 1500 rpms, the whole car vibrated. The problem is inside the engine, not in the suspension, etc. I took the car back again and the dealer had the engine and transmission lifted off of their mounts and had it "centered" back on the mounts. This did absolutely n othing for the problem. I brought it back again and this time the service people had a conference call with GM and the engine and transmission were lifted off their mounts and some of the mounts were replaced. Nothing. The car still vibrates whenever the engine is running at 1500 rpms. It is a manufacturing defect in the engine. I filed a lemon law suit. GM offered me $1600 to go away. WTF!! I had paid over $30,000 for the car just 9 months ago and they expect me to live with their crappo car. I told my lawyer that I wanted GM to buy back the car. I was told that they had never seen GM buy back a car with this typoe of problem. The lawyer went back to GM and they offered me $2600!! I don't know what is up with them but I told my lawyer that GM could stick their $2600. The minimum amount that I would even consider is $10,000. I could then use that with the miserable trade in value on this car to get into a Nissan or Honda. GM is a mess. This car which cost me over $30,000 last June is now only worth about $16,000 in trade. It has depreciated $14,000 in 9 months. And it only has 9000 miles on it and is loaded with every option available. It stickered at $42.000 when new. So much for good old GM products. I told the service manaager that all that I really wanted was for them to fix the car. He told me that he could not fix my car - period. And GM was not going to authorize any more attempts to correct the defect. Unbeleivable!!! Whatever happened to Mr. Goodwrench?? Where is he when I need my poor excusse for a car fixed?
#1856 of 2217 Re: 2009 Buick Lucerne [sgtdevlinusmc]
May 01, 2009 (9:15 pm)
I didn't notice a problem. It vibrates that way because it's a V8 and probably needs a less restrictive exhaust. I don't drive at 1500rpm, ever, though. That's lugging the engine and isn't good for it.
#1857 of 2217 Upgrade Lighting on "06 CXS
May 04, 2009 (3:07 am)
I have a 2006 CXS & would like to upgrade the headlights to an HID Xenon setup or at least a bulb upgrade to Sylvania Silverstars. It looks as though you can not replace any front end bulbs without dropping the front bumper clip (absolutely insane). If this is true, is there a shortcut or trick to accessing the front lights and is there a GM mechanic or lighting specialist out there that can direct or suggest a superior product and an appropriate route to take. I want lighting that is long lasting, trouble free, with an installation that is the least complicated and intrusive to the vehicle. Also, I'm in warranty to 2012 and want something that will not conflict with the wiring harness and cause any damage voiding the warranty. I'm in the Phoenix Metro area, so if anyone can recommend an auto lighting specialty shop or product, it would be greatly appreciated. Thanks! CXSROBB
#1858 of 2217 Re: How is the new 3.9 in the Lucerne [0to60in15mins]
May 05, 2009 (12:13 pm)
To be honest, I hadn't been in the car market since 2008 and hadn't kept up things like engines, etc.
I ended up buying a 2009 Lucerne CX for my mom, with the 3.9 V-6.
Having the 3.5 DOHC in my 2000 Olds Intrigue, I thought this was also an DOHC because it was so smooth and had plenty of pep.
If you want a race car, then you want the V-8.
But the 3.9 V-6 in the car I bought is no slouch.
Mileage during the first tank of gas was 16.5 mpg. But considering that this was the first tank and my mom never drives more than 8 miles at a time....