Question about 2003 Buick Century

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Gas gauge What would cause the gas gauge to stay on full all the time? I had an oil changed about 2 months ago and every since then my gas gauge is not gauging the gas correctly- I

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  • Anonymous Aug 07, 2008

    I have a 2003 buick century 3.1 and have changed the sending unit,and I'm still experiencing the same problem, the fuel gauge would go to empty,the chime would sound ,and sometimes the car would shut off.I've noticed now that the ABS light would sometimes come on any help would be nice

  • smackleboom Aug 07, 2008

    I have a 2003 buick century 3.1 and have changed the sending unit and still have the same problem. The fuel gauge would go to empty the chime would sound and somtimes the car would shut off. Also from time to time the ABS light would come on and i would have some braking issues. Thanks for your help

  • loco1529 Dec 20, 2008

    i have a 2001 but still am having the problem of gas gauge always read full it will sometimes go down when i am nearly empty though but that's it

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  • 119 Answers

The sending unit in the fuel tank most likelt went bad. It is probably a coincidence that it happened at the same time as the oil change.

Posted on May 26, 2008

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I have a 2004 Ford Explorer sport track, the oil pressure gauge went to zero back 1 month ago, we changed the oil sending unit, no change. Any ideas on what next?


You need to get an actual pressure test on the block to get an actual reading, because I would hate for you to have lubrication problems in the engine and blow the engine. If the gauge is stuck on zero try with the engine off and key on, ground the sending unit wire to the block and see if the gauge pegs to full. If it does not, replace the gauge and get it calibrated if it needs calibrating.

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1. Oil Pressure Gauge Not Working You will notice this happens when your oil pressure gauge is not reading, whether the engine is turned off, idle or running. Try to step on the gas to rev up the engine. If the oil pressure gauge still doesn't change its reading, your gauge is busted. It's best to replace it as soon as possible because you won't have any idea if your car is already overheating or not.
2. Oil Pressure Gauge Reading Too Low When your engine is idle, the oil pressure gauge will have a low reading. When the engine starts running or when you're already cruising or on the freeway, your gauge's reading should have increased. If it stays on a low reading, then you now your oil pressure gauge is broken.
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I just got a 2000 Ford Ranger XLT 4x4, 4.0, std tran. The oil gauge doesn't work (engine runs fine) Previous owner said something about the ground for the instrument cluster (?) Also the gas gauge is off...


You should invest the $25 in a repair manual from the auto parts store. It has wiring schematics in the back of the book. Get yourself a decent digital volt ohm meter and start tracing the wires for your oil gauge, or you could try changing out the oil sending unit on the motor. It may be bad and they're not that expensive. As for the gas gauge, it sounds like you have a sticking float in the tank. As far as I know they do not sell the float and the fuel pump separate from each other. I would just watch the miles per tank of gas on the trip meter, unless you absolutely have to have a gas gauge then it's time to change the whole pump assembly.

Oct 29, 2013 | Cars & Trucks

1 Answer

My oil and gas gauge on my truck jump .... gas gauge works fine till i get to about half a tank then it starts jumping.. oil gauge jumps from the time i start my car and regulates but when i slow down or...


You probably have a bad sending unit for the fuel level in the tank. this would cause the gauge to be erratic when the level is below 1/2 tank and the float is moving around much more than when full. The oil pressure gauge problem could be caused buy a loose wire connection or a faulty sending unit.

Mar 04, 2011 | Chevrolet Silverado 1500 Cars & Trucks

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Fuel gauge stays on full but is empty will not take gas i ran out of gas 2 days ago put fuel in manually and i have had this problem since


i think your gauge is not working,maybe the hand stock up..replace it or check your gauge with an expert to your car dealer

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Well fuel gauge stuck temp oil pressure gage all gages i say you have one of the wires pinched above the gas tank!!!!good place to start

Jan 30, 2011 | 1996 Chevrolet Blazer

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Oil pressure gauge is reading 80 psi. I had the


The oil sending unit is located on the engine block behind the drivers cylinder head area.You have to climb up on the motor to see it cause it is hard to see behind the wiring harness.You may also want to purchase a new sending unit because it is very long and you might need to buy the sending unit socket to replace it.Hope this helps.Good luck.

Jul 20, 2010 | 2003 Chevrolet Silverado 1500

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I have a '99 Voyager and the oil pressure sensor stays on and beeps at me while I am driving. It has plenty of oil. The oil was just changed 2 days ago and the oil pressure switch was changed 2 months ago....


The first thing to do, is take it back to your mechanic
and have them hook up a mechanical oil pressure
gauge. To find out the actual oil pressure,before any
serious damage results. As for the oil pressure sending unit, it's not that strange to get a bad one out
of the box. But lets eliminate the obvious first and have the gauge check done. Hope this helps.
Good luck.

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