Question about 1993 Cadillac DeVille

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1993 cadillac deville runs ruff poor gas mileage loads up with fuel

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6ya6ya
  • 2 Answers

SOURCE: I have freestanding Series 8 dishwasher. Lately during the filling cycle water hammer is occurring. How can this be resolved

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Posted on Jan 02, 2017

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SUPERMAN_B_1
  • 294 Answers

SOURCE: fuel filter replacement 1993 Cadillac Deville

hello. it should be located under your car on a line that's coming off your fuel tank and yes you can do this your self very easy to do ,you'll need a few box/open ended wrenches that's it you'll need to check the fitting or the nut on each side of the filter to see what the sizes are,befor removing the filter you'll want to take off your gas cap and remove your neg battery cable ,not when you find the filter it'll have nut on each side all you have to do it loosen them but make sure that you don't break the fuel line or kink it and after you have both sides loose then just finish turning them off and there you go the filter is off, nope no removing the gas tank some newer models you do and the filter is attached to your fuel pump and don't need replaced but for your car and year you wont need to remove the tank. good luck

Posted on Mar 25, 2009

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csmock132
  • 4669 Answers

SOURCE: I have a 1991 fleetwood cadillac with a 4.9 v8

On the first one(the 1991) check the fuel pressure. Actually, check it on both of them.

Posted on May 30, 2009

  • 1 Answer

SOURCE: fuel filter location

I just replaced mine. It was on the passenger side, near the back of the tire well. I was told it was on the drivers side, but not true.

Posted on Jun 21, 2009

jturcotte
  • 8574 Answers

SOURCE: Please help: 1992 Cadillac Deville:

E13: right bank O2 sensor, no data
F48: low refrigerant level in A/C system

Neither of these is likely to cause rough idle, but I would change the sensor.
If that cure it, great.

If not, make sure the vacuum hose on the fuel pressure regulator (at end of fuel rail) is tight at both ends and not cracked or leaking. Then pull the vacuum hose off the regulator and see if there is any fuel in the vacuum hose. If yes, replace regulator.
I also recommend cleaning up the intake side of engine with carb cleaner or equivalent: throttle body, Mass airflow sensor, EGR system, and PCV valve. Make sure EGR valve is operating.

If you have questions, please let me know.

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fuel press reg:

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Posted on Oct 24, 2010

nicole99wu
  • 1049 Answers

SOURCE: My Cadillac deville keeps popping codes p0171 and

hi, this is an obd2 trouble code table, can help you understand the code. and this tool connects this tool can solve your problem,hope help.

Posted on Jun 17, 2011

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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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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

1 Answer

Average feul mileage is only 9.4 mpg./why?


Could be a combo of components that are causing your poor fuel mileage.
Dirty air filter is the 1st thing to check - after that.
1) Oxygen sensor
2) Knock sensor
3) EGR valve
4) Spark Plugs/ Wires/ Ignition components
5) Restricted Exhaust

Dec 30, 2011 | 1993 Cadillac DeVille

1 Answer

My 1993 cadi deville keeps flooding. gas fills-up in carbator when I turn key on. What's this?


first, the 1993 cadillac deville should have a throttle body not a carburetor. And, I think it has ported fuel injection to each cylinder with a fuel injector for each cylinder if it's like my 1990 Cadillac Deville.

Jun 20, 2010 | 1993 Cadillac DeVille

5 Answers

97 deville poor mileage since new.(elderly driver)


scrap this gas guzzling machine and recommend an electric car or a peugeot 107 or a citreon C1 that do 50+++++ miles per gallon

Apr 30, 2010 | 1994 Cadillac DeVille

1 Answer

The service engine light is on and the car runs good, but when the light goes off the car spits and sputters and doesn't run right.


have it put on diagnostic more than likely a o2 sensor is goin. loosing power and reall laggy? poor gas mileage?.sensor tell the comp air to fuel mixtures in case you dont know. parts about 50 to 150 depending on the car.

Nov 24, 2009 | 1990 Cadillac Deville

1 Answer

The code on my 1993 cadilliac sedan deville comes up with E-39 what does that mean


E39 means that your overdrive in the transmission is not working which will greatly effect your fuel mileage.

The most common fault is the TORQUE CONVERTER SOLENOID that is faulty.

I hope this helps you

Oct 18, 2009 | 1993 Cadillac DeVille

1 Answer

Car shakes at stop signs, very poor gas mileage, and sputters whe


Try having your fuel injector cleaned, you can start with running fuel injector cleaner though your gas tank and if that does not help then you have to get it cleaned out professionally or even worst have the injector's replaced if they are bad.
The other thing that will give it bad fuel would be a bad air intake temperature sensor go bad, as for the ruff idle that is common to a dirty or stuck EGR valve.
Good luck and keep me posted, by the way, what kind of Garage did you take it too? And are there and DTC codes from the ECM?

May 26, 2009 | 2002 Buick Regal

1 Answer

Poor gas mileage


Well,

I would start with a tune up, Spark plugs , wires , new fuel filter. Then check fuel mileage . The tires believe it or not have to have correct air priessure , This also is a factor in fuel economy.
If the fuel ecomony does not get better then you should have the fuel system check. The fuel pump could be weak pressure or a throttle body cleaning service should be performed.
The next step after this would be the fuel injector replacement. Now your are talking a investing a few bucks into the car. The most cost effective is to start with a tune up and fuel injector cleaner in the fuel tank, You can pick up the parts at your local auto parts store.

Mar 19, 2009 | 1998 Cadillac DeVille

2 Answers

1991 deville idling very ruff


Hi you should change the coolant temp sensor this is a white sensor on top of the intake and is part ot the computer system.

Dec 30, 2008 | 1991 Cadillac DeVille

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