Question about 2001 Cadillac DeVille

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I have a 2001 cadillac deville. im haven a problem with the gas guage. when i feel it up it reads fine . when the fuel is lower it reads full. but it does read low when its almost empty.

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Faulty sending unit

Posted on Feb 21, 2009

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Hi my 01 Deville wont idle when cold unless im keeping my foot on the gas pedal. Once it's warm, it idles fine. Any ideas?


If it were mine, the first things I'd do would be to clean the carb or jets, whichever, put a new air filter in, dump a can of Sea Foam in a full gas tank, give it a new gas filter. Could be your thermostat is sticking a bit.

Mar 11, 2017 | 2001 Cadillac DeVille

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All the service lights on and gas hand fluxurates in my 2001 cadillac deville what is wrong with it


The rest of the car is fine? Maybe you have a dash going bad. I have a 2004 silverado that had the same problem, lost all guages,etc. They had to put in a new panel, there was a recall for it at the time and was covered way past warranty period. They had a problem with solder joints. Please rate my answer so I am rewarded points for it.

Feb 01, 2012 | 2001 Cadillac DeVille

1 Answer

The digital guage on my 2001 Cadillac Deville Sedan is not reflecting the correct amount of gas in the car. I looked at the Driver Information Center and the fuel left over said 99.9 empty, when it would...


The problem needs to be properly diagnosed, but the most likely cause of your problem would be a malfunctioning fuel level sensor in the fuel tank. It could also possibly be a problem with the wiring to the sensor.

Jul 09, 2011 | 2001 Cadillac DeVille

1 Answer

I have a 1987 cadillac deville with apoox 85000 miles on it fuel pump went out I drop the tank and replaced the pump. I can not get a proper reading on the fuel guage (digital) I have taken the gas tank...


your problem is definately in the fuel sending unit..thats all it can be, either that or the float arm is losing contact on the slider... thats all it can be.

Dec 06, 2010 | Cadillac DeVille Cars & Trucks

1 Answer

2001 cadillac eldorado, gas guage goes to full


to test if its the float in the gas tank, use a rubber hamer and hits 2-3 times than check guage. If the level is still wrong its the guage.

Mar 22, 2010 | 2001 Cadillac Eldorado

3 Answers

Gas gauge is not reading correctly. Shows a full


the problem is caused by a defective gas gauge sending unit, this part is located inside the gas tank, you must remove the gas tank to replace it.

Dec 02, 2009 | 2002 Cadillac Deville

1 Answer

2001 DeVille will start fine but won't continue to idle without keeping your foot on the gas pedal


Have it scanned and look for codes first, but then fuel trim, O2, and MAS air flow readings. I'm going to guess it's running lean and you have an air leak in the throttlebody.

Oct 22, 2009 | 2001 Cadillac DeVille

1 Answer

Fuel gage problem


The fuel guage sensor must have gone bad. It is located near the fuel pump in the fuel tank.

May 20, 2009 | 2001 Cadillac DeVille

2 Answers

Digital fuel guage


yes. the fuel sending unit in the gas tank does need to be replaced

Jan 28, 2009 | 1999 Cadillac DeVille

1 Answer

97 cadillac deville fuel gauge.


Not a current owner, but knowing Cadillac, that may be the way they meant for you to think of the fuel. How many miles till refill. Maybe that made it easier to swallow the high priced, too frequent fill-ups! I'll ask my friend, he's got a '99.

Jan 28, 2009 | 1997 Cadillac DeVille

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