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Buick Lucerne Fuel Level Sensing and Display

30 messages,  Last post on Aug 25, 2008 at 9:58 AM

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What is this discussion about? Buick Lucerne, Fuel System, Sedan

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#11 of 30 Only a gas guage problem? by paradox2 Jan 30, 2008 (4:48 am)
God, would it be that I only had your problem. I wouldn't care if I didn't have a gas gauge at all, if that was my only problem.. What I do have is: Vibration at highway speeds Pulls to the right Transmission noises Steering noises Wind noise Car dead, no electrics (Twice now) Lower body trim falling off Trunk release failed Headliner detached Loose transmission inspection plate Transmission leak Remote mirrors, no memory return Remote start..works sometime, sometimes not Heated seats...works sometime, sometimes not Warped front brake disks Dash lights too dim Electrical plug in rear door detached Engine knocks Rattle in the 6 CD changer and of course a crazy fuel gauge.   There is more, but I am getting angry again and am shaking too much to type. This piece of crap will be traded for a Lexus before the warranty is up. I pity the next owner. What a sucker I was. Replies to this message: rmello (Feb 04, 2008 7:53 am)
#12 of 30 Re: Only a gas guage problem? [paradox2] by rmello Feb 04, 2008 (7:53 am)
Replying to: paradox2 (Jan 30, 2008 4:48 am) Sorry to hear about your many problems, I have read many reports by other Lucerne owners with many of the same problems as yours. Fortunately, my only problems is with the instrument readings. Besides the fuel gauge, the outside temp gauge is always wrong -off as much as 17 degrees-, the tach gives incorrect readings, the instrument cluster is difficult to see in the daytime -especially if wearing sunglasses. As I have stated before, I have contacted Buick many times, even wrote a letter to the President of Buick, no response. This will definately be my last Buick.
#13 of 30 RE: Inaccurate Fuel Gauge Reading by gorphil Feb 05, 2008 (1:42 pm)
My 2005 and current 2008 Allure(LaCrosse) have the same inaccurate fuel gauge readings. I have never thought of this to be a problem as I use the trip odometer to determine the next fill up. My brother-in-laws 2006 Allure provides accurate reading. Replies to this message: rmello (Feb 06, 2008 6:48 am) imidazol97 (Feb 06, 2008 7:10 am) rmello (Feb 06, 2008 1:15 pm)
#14 of 30 RE: Inaccurate Fuel Gauge Reading [gorphil] by rmello Feb 06, 2008 (6:48 am)
Replying to: gorphil (Feb 05, 2008 1:42 pm) I have been driving for over 50 years and this is the first car -and the most expensive I have ever owned- that does not give me accurate readings. For what I paid for this car, I want all my gauges to work properly. What car ever built requires you to drive 10+ miles before the fuel gauge gives an accurate reading? Or, what car ever built -according to Buick- requires you to find a level spot on the road and restart the engine to get an accurate reading before you start a trip?   This to me is pure nonsense.
#15 of 30 RE: Inaccurate Fuel Gauge Reading [gorphil] by imidazol97 Feb 06, 2008 (7:10 am)
Replying to: gorphil (Feb 05, 2008 1:42 pm) I read your post about fuel gauge readings... I found this in a quick search of the net and it makes sense.   "Fuel gauge: The engine may not start or may stall because the tank is empty yet the gauge shows fuel remaining, or the fuel gauge will not show full after refilling due to sulfur corrosion of the fuel level sender and, if after treating with Fuel System Cleaner PLUS the problem remains, the sender may need to be replaced. (2004-06) "   I recall some gasolines have had trouble with too much sulfur (or not the right additives to handle the sulfur) from a couple years back. That included a name brand in the Louisville area. I have a suggestion.   At Pepboys or Advanced Auto or Meijers or Walmart they sell Techron Fuel System Cleaner additive by Chevron. I think there's even a rebate for all of the purchase price back on the 12 oz bottle that I saw in an ad within the last week. Maybe a company rebate rather than the chain store... Note this is Fuel System Cleaner. There's another version called Injector Cleaner, which I believe to be weaker.   The bottles say it can help protect your fuel gauge from malfunctioning. I would use the 12 oz bottle as directed. Put in with tank almost empty at the gas pump. Put in up to 12 gallons or 20 gallons of fuel. Then drive without adding fuel until almost empty. It may clean the corrosion off the contacts that rub for the fuel gauge to give the reading on fuel level. You might use it a second time. But don't use it continuously. I use it one or two times a year in my leSabres. It always makes the engine seem better after a few miles when I put it in. I don't believe in additives but this one was recommended years ago by BMW and then others to clean injectors and deposits before gasolines additives were improved. It's the additive blends Chevron/Texaco put in their fuels. Replies to this message: rmello (Feb 06, 2008 1:15 pm)
#16 of 30 RE: Inaccurate Fuel Gauge Reading [imidazol97] by rmello Feb 06, 2008 (1:15 pm)
Replying to: imidazol97 (Feb 06, 2008 7:10 am) What you are describing is not my problem. My fuel gauge problems started from day one when I purchased the car new (Aug 2006). I have had several contacts with other Lucerne owners experiencing the same problem as I. This problem is occurring in the 2007 and 2008 models. As for LeSabres, I have owned two, a 1989 and a 2002 both purchased new and never had any problems with the fuel gauge -always giving me correct readings. As I stated before, I have been driving for over 50 years and never had any problems with fuel gauges on any car I have owned. This is a Buick screw up.
#17 of 30 Gas gauge problems by rjwelsh Mar 03, 2008 (7:46 am)
Since I took delivery of my new Buick Lucerne CXL the gas gauge has never read properly. It either reads right or a quarter tank less than what is in the tank. GM has checked all the wiring, dropped the gas tank? and replaced the sending unit as well as the computer upgrades. Nothing they have done has fixed the problem. If anyone hears of a fix please advise. Thanks Bob Replies to this message: mistyblue (Mar 16, 2008 3:31 pm) rmello (Mar 17, 2008 7:28 am)
#18 of 30 Re: Gas gauge problems [rjwelsh] by mistyblue Mar 16, 2008 (3:31 pm)
Replying to: rjwelsh (Mar 03, 2008 7:46 am) I had a gas gauge problem on my 1999 Cadillac w/Northstar engine... the Fuel Pressure Regulator was replaced & it resolved the issue..... I do not know if my 2007 Lucerne CXL has the same part as I not having an issue this time....Good luck.... Replies to this message: rmello (Mar 17, 2008 7:28 am)
#19 of 30 Re: Gas gauge problems [mistyblue] by rmello Mar 17, 2008 (7:28 am)
Replying to: mistyblue (Mar 16, 2008 3:31 pm) If you are not having a problem with your fuel gauge, you are fortunate. Owners of 2007 and 2008 Lucerne's are experienicing the same problem as me. Again, according to Buick, this is their design and may take up to ten miles of driving for the fuel gauge to correct itself. They are right as I have tested this several times.   Not sure why yours work correctly and mine doesn't.
#20 of 30 Fuel gauge reading is inaccurate or inconsistent by rjwelsh Jun 03, 2008 (7:04 am)
I received a document ID #2074841 #PIC4799 concerning my fuel gauge problems with my 07 Buick Lucerne CXL from General Motors. This is a problem for 2006-2008 Buick Lucerne and Cadillac DTS models. Should anyone wish a copy of the service bulliten please let me know.   Bob Replies to this message: cordiner (Jun 04, 2008 8:47 am) proft (Aug 24, 2008 9:44 am) rjwelsh (Aug 24, 2008 4:06 pm) imidazol97 (Aug 25, 2008 9:58 am)

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