Last post on May 08, 2013 at 2:28 PM
You are in the Buick Lucerne
What is this discussion about?
Buick Lucerne, Lights, Electrical, Sedan
#75 of 116 Re: Buick Lucerne: Fuel Level Sensing and Display [b88lazer]
Jan 08, 2008 (12:08 pm)
This message updates and corrects information in message #1 of 5 on the above subject. The vehicle in question is a 2007 Buick Lucerne CXS, not a "DTS" as originally cited. I apologize for the inexplicable brain fade and should have corrected this error much sooner.
The fuel sensing and display gripe described in my original post still exists. The fuel tank fuel level sensor has now been replaced twice with no corrective effect. The dealer's service manager subsequently escalated the problem within GM and was advised to run electrical continuity and resistance checks on all wiring and devices in applicable fuel sensing and display circuits. No problems were found. On two occasions, I've had DIC "low fuel" warnings with well over 8 gallons of fuel remaining. I've learned that other Lucerne (and some Cadillac) owners who bought from and have vehicles serviced at this dealership have reported similar fuel gaging inaccuracies that have not been solved. This problem is apparently far more widespread than GM acknowledges and the work-around fix seems to be "fill up often". Inattentive gage watchers should keep comfortable walking shoes in the trunk.
#76 of 116 Re: Buick Lucerne: Fuel Level Sensing and Display [b88lazer]
Jan 09, 2008 (7:19 am)
Good Luck with replacing the fuel tank lever. Buick replaced mine and it did not solve the problem. I belong to AAA and according to them, the problem is with the compute(s). They are programmed with incorrect specifications and Buick does not have a fix.
#77 of 116 Re: Buick Lucerne: Fuel Level Sensing and Display [rmello]
Jan 09, 2008 (9:32 am)
Do you have a link or other reference to AAAs information about the Buick fuel level indication problem? That would be helpful. Thanks
#79 of 116 AAA referral
Jan 10, 2008 (9:44 am)
AAA has John Paul referred to as the "Car Doctor". He told me about the fuel gauge computer problem.
Hope this helps.
#80 of 116 Only a gas guage problem?
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
Car dead, no electrics (Twice now)
Lower body trim falling off
Trunk release failed
Loose transmission inspection plate
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
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.
#81 of 116 Re: Only a gas guage problem? [paradox2]
Feb 04, 2008 (7:53 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.
#82 of 116 RE: Inaccurate Fuel Gauge Reading
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.
#83 of 116 RE: Inaccurate Fuel Gauge Reading [gorphil]
Feb 06, 2008 (6:48 am)
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.
#84 of 116 RE: Inaccurate Fuel Gauge Reading [gorphil]
Feb 06, 2008 (7:10 am)
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.