Question about 1994 Cadillac DeVille

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1994 cadillac deville running at high speed

Ive changed nearly all electronic parts i can think of. Car starts, runs, and u can drive it like a grandma, but when u go to give it gas it seems like it floods starts dying and after bout 5 seconds it backfires and catches up i dont know what to do now.

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  • Cadillac Master
  • 22,246 Answers

Fuel problem ,like a lazy fuel pump

Posted on May 30, 2009

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1 Answer

94 cadillac deville dies when i slow down


I have seen this problem before and the cause could be TCC Staying in Lock-up or an Electrical Issue within the Engine itself or a Fuel Delivery Issue.

If the Transmission TCC is the issue, try driving at slower speeds (below 30 and come to a stop, does it Shut off then? Increase Speed by 10 and try again. Does it react differently once you go above 42-45 MPH?

Apr 04, 2013 | 1994 Cadillac DeVille

1 Answer

Idles high when i start my1994 cadillac deville


It is supposed to have a high idle when first started this is normal automatic idle speed control strategy

Oct 26, 2012 | 1994 Cadillac DeVille

1 Answer

A motor or blower keeps running(near windshield) even after car is turned off


Relays are bad, need replaced. Located on driver's side wheel well underneath the hood. Visible are 2 relays on my 1990 Cadillac Deville that had this problem.

Tap the relays to see if it shuts off. If it does, this is the problem for your Cadillac Deville, I'm certain, of this.

It will seem to run on high even though you switch the car off.

lol.

Jul 04, 2010 | 1993 Cadillac DeVille

1 Answer

1994 Cadillac deville will start, but once key is released the car dies, No lights on dash and speedometer needle climbs then falls. You can maintain pressure on the ignition switch and the car will run...


replace the computer. 94 el dorado 94 seville 94 de ville computers are the same just make sure its the 4.9l motor u have . because the computer will make the car run real bad if u do not get the correct computer

Feb 01, 2010 | 1994 Cadillac DeVille

1 Answer

My 1994 cadillac sedan deville is making a


senser is faulty and needs changed. hope this helps?

Aug 25, 2009 | 1994 Cadillac DeVille

2 Answers

Why does my 2001 cadillac deville keep running hot. ive changed the water pump and the thermistat


Well there could be a couple of problems if you live in a hot place you should change the thermostat to a lower tempatured one so the water will circulate sooner that will help it run cooler if that doesn't do it it might need the radiator flushed.

Jul 29, 2009 | 2001 Cadillac DeVille

1 Answer

Engine and electronics die on ecceleration and remain dead for awhile


ALL Grounds Need to Be Checks on this Including BATTERY They MUST Be CLEAN this Sounds Like a Poor Ground Problem.

Jun 01, 2009 | 1994 Cadillac DeVille

1 Answer

Blower motor has no power 1994 cadillac deville


If there is only high speed fan, then replace the resistor assembly in the heater plenum. If there is no fan at all, then check the ground to the blower- the wire fails down in the fender well. Just run a new ground from a convenient spot to the motor's plug harness. Or it could just be a bad blower motor.

May 29, 2009 | 1994 Cadillac DeVille

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