1996 Cadillac DeVille Logo

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Posted on Apr 15, 2017
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I have a 1994 Cadillac Deville Concours. The car starts fine and runs great for approx. 15 minutes and then acts like it is starving for fuel. The car will accelerate with light pressure on the accelerator but bogs down if you give it more gas. If you turn the car off and then back on the car will run great for a while and then the whole process starts over. The items already replaced are the fuel pump,fuel filter, fuel relay and the oil pressure switch. I can turn a wrench but am no good with newer cars. I have no test equipment that will help either. Any suggestions would be greatly apprecited. Thanks!

1 Answer

brian williams

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  • Posted on Apr 15, 2017
brian williams
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Any check engine light or codes? My first thought would be tps or possibly fuel filter. As car builds up pressure a clogged filter would cause your symptom.

5 Related Answers

emissionwiz

Marvin

  • 85242 Answers
  • Posted on Oct 14, 2008

SOURCE: 1994 cadillac deville concours

Look if the engine is doing what you say then it is overheating and there is no problem with the sensor, remember the sensor only tells what is going on, it does not cause anything like overheating. Have you bled the system of air, there is a factory procedure to do this.

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Anonymous

  • 1 Answer
  • Posted on Oct 16, 2008

SOURCE: How Do I remove the door panels in my 94 cadillac deville concours?

u have to remove the panel that has the door handle in it, remove the panel which has the window and the seat adjusters, unplug the wires and just lift the door panel and there u are.

rockys performance motors

  • 303 Answers
  • Posted on Nov 21, 2008

SOURCE: 92 deville car does not stay running after 1-2minutes

i know this sounds stupid but did you check the oil some caddys have a fuel pump shut off if the oil gets to low

Anonymous

  • 10 Answers
  • Posted on Feb 01, 2009

SOURCE: 1997 cadillac deville concours stability reduced message

press and hold the off and red warmer button on your ac control panel / the display should then go into diagnostic mode.  all the trouble codes can be read out to help in tracing down the problem. you can also read out other info by pressing the temp up or down button when in diag. mode.   press the off button when your done.

Anonymous

  • 2 Answers
  • Posted on Apr 20, 2009

SOURCE: '97 Cadllac Deville Concours reading "Anti Theft System Problem"

make sure your key is clean try again, if not the system will tell you to wait 3 mins while key is in ignition this will reset the system and dash will tell you to start vehicle, you should be fine after that, common cause dirty key!!!!!!!!

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1994 Cadillac Deville Concours. The display is not working.

Question edited for clarity and toss in some CAPS.

Digital display, you probably need an auto electrician.

https://www.google.com/search?q=Cadillac+Deville+Concours+display+not+working

..
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My 1996 Cadillac Deville Concours electronics has gone crazy! The fuel gage is reading 58 gallons, the odometer mileage reading added 100,000 miles and wacky dashboard readings. What is the cause?

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I have a 1994 Cadillac Concours. When I left the store the motor started shaking, then it quit. Then right before I got home it started shaking again.

If the car is running well, the issue could be a motor mount. A bad motor mount will give you the symptom of vibrating or shaking.
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My 1994 cadillac deville concours will not shift out of first gear. What would the price estimate be for the job?

Since now is in Limp mode that means that the damage to the gearbox is serious so at least $500. If the damage is too great to be fixed you may need a new one at more than $2000.  
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What is the wiring diagram for the distributor in a 1994 cadillac deville

For the 1994 Cadillac Deville 4.9L V8 (Not the Deville Concours)

Firing Order:
1-8-4-3-6-5-7-2
Cylinders:
.........(back)..........
|...2....4....6....8...|
|.........................|
|...1....3....5....7...|
.........(front)
Distributor Wiring Connections:
......(back)
.........4
...3...........8
6................1
...5...........2
.........7
(front)
Let me know if this helped, or if you have additional information questions. Feel Free to contact me at FixYa.com!
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1997 cadillac deville concours, replaced battery and alternator already. Car hesitates to start for a few days and then needs a jump to start, what else could it be?

its the mass air flow sensor follow your air intake hose till it connects with engine ( throttle body ) it is right on top first thing plugged in unplug it then start it it will be fine got knew one at junkyard for $20 they are new for $150 or more my 97 runs great thought it was fuel pump its mass air flow sensor
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1994 cadillac deville concours

On my car, which is the same as yours, it is located on the manifold top back left. Pictures in the book just show it on top.
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How Do I remove the door panels in my 94 cadillac deville concours?

u have to remove the panel that has the door handle in it, remove the panel which has the window and the seat adjusters, unplug the wires and just lift the door panel and there u are.
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