Question about 2000 Cadillac DeVille

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I have a 2000 cadillac deville, the computer says the engine is hot, but it is not. Also, after I get below 1/8 of a tank in fuel, the computer fills it back up?????

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Issue with Connection Cable... Check Rad-Sensor For Broken Wire connection Also Issue with Potentiometer Fuel Gauge Inside Gaz Tank .. Remove Gaz Tank and Change Ceramic Plate Potentioneter Fuel Gauge Sometime Resitor got Corosion .But on this Case It better Change The Complete System Unit For $190 on Junk yard Auto Dealership ...New it $350 Good Luck

Posted on Oct 06, 2010

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Posted on Jan 02, 2017

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Please help; my Cadillac Concours 1995 use fuel ? tooooooooo much in 100 km use ? 35 liters (9 gallons) without any smoke or missing. What is problem and how can I fix it????


Cadillac DeVille Mileage ' Fuelly

www.fuelly.com > Cars > Cadillac
There are 53 Cadillac DeVilles with reported gas mileage parked at Fuelly. ... Any Submodel, d'Elegance (1), DTS (1), Concours (2), DHS (4), Base (13), Other (32) ... 4 Vehicles; 27 Fuel-ups; 5,215 Miles Tracked; View All 1995 Cadillac DeVilles ... 2 Vehicles; 9 Fuel-ups; 1,664 Miles Tracked; View All 1991 Cadillac DeVilles.

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www.edmunds.com > ... > DeVille > 1995 DeVille

Edmunds.comFeatures and specs for the 1995 Cadillac DeVille including fuel economy, transmission, warranty, engine type, cylinders, drive train and more.Missing: 100km

Cadillac history 1997 - Motorera

www.motorera.com/cadillac/cad1990/1997/cad97d.htm
History of Cadillac automobiles for 1997. ... 1997 CADILLAC DEVILLE ... Fuel Economy City/Hwy, 13.8 l/100 km - 9 l/100 km (20.4/31.2 mpg-imp) (17/26 mpg US).

Jan 25, 2016 | Cadillac Cars & Trucks

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2000 Cadillac Deville DTS 4.6L HO Northstar


Well, I don't think so. The pressure sensor will throw its own code (0450, 0451, 0452, 0453, or 0454). And likewise, the fuel level sender or sensor could also throw its own codes (P0460-P0464).

I'm not sure the level sensor and the pressure sensor are linked together. They are separate on a 2005 buick century, the pressure sensor being at the top of the tank located on the fuel pump module, but Cadillac: anything is possible.

Since you replaced the purge solenoid, there may be a problem in the circuit. The purge should have battery voltage to it with the key on. The ECM will ground the circuit internally when the purge is wanted. One symptom of a purge valve that isn't working or stuck closed can be a whooshing sound when the fuel tank cap is opened, indicating excessive pressure in the tank.
A shop's scan tool could be used to command the purge valve on to check it.

Sep 09, 2014 | 2000 Cadillac DeVille DTS

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1998 sts wont start unless u hit the gas then it runs rough ..u put it in drive it wont run over 2000 rpms then it dies


Is the gas tank above 1/2 tank now?

A worn / aged fuel pump will fail when it's hot and the fuel level is low (example: below 1/4)

Park your car in a cool area.

Start the car when it's cold outside,

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Check the engine fuel pump pressure.
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Replace the fuel pump relay,fuel filter,fuel pump and fuel pump stainer at the same time.
===

Jun 22, 2010 | 2001 Cadillac Sts

1 Answer

How to change the fuel pump on a 1997 Cadillac Deville?


THE 4.6L ENGINE YOU CAN REMOVE FUEL PUMP FROM THE TRUNK AREA. THE 4.9L ENGINES DROP FUEL TANK.YOU TO BUY A HAYNES REPAIR MANUAL YOU NEED TO SEE PHOTOS HOW TO DISCONNECT FUEL LINES AND SEE HOW TO REMOVE GAS TANK AND FUEL PUMP ASSEMBLY.

Mar 20, 2010 | 1997 Cadillac DeVille

1 Answer

Where is the fuel filter located on a 1996 Cadillac sedan deville


Under the car on the drivers side just below the seating area in front of the fuel tank and mounted on the chassis in the fuel line. good luck

Jan 31, 2010 | 1996 Cadillac DeVille

1 Answer

Canot locate the fuel filter in 1992 cadillac


The fuel filter should be on the frame rail on the right side below the passengers door area.Just follow the fuel lines from the motor or the fuel tank.

Nov 15, 2009 | 1992 Cadillac DeVille

1 Answer

Cannot locate sedan deville fuel filter


Under vehicle, driver side, below seating area, front of fuel tank, mounted on chassis in fuel lin.

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Jun 11, 2009 | 1992 Cadillac DeVille

2 Answers

Water coming from engine into overflow tank


Sounds like an overheating problem, best to get it checked, maybe thermostat stuck closed, pluged radiator, head gasget, cracked head.

Feb 08, 2009 | 2000 Cadillac DeVille

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