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I have a 95 Cadillac sedan deville it has a bad miss I changed the spark plugs wire distrubutor cap rotary button n the O2 sensors but its still missing

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  • Cars & Trucks Master
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Do you know which cylinder and have you checked the fuel injector for that cylinder ?

Posted on May 06, 2013

  • rezzie_23
    rezzie_23 May 07, 2013

    No will do

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SOURCE: acceleration problems

This firing order diagram would not post in the clarification request for some reason, use this diagram with the information in the clarification request.


0330668.jpg

Posted on Jun 19, 2010

ftw1952
  • 10319 Answers

SOURCE: 1991 Cadillac Sedan De'ville. Has

a burnt valve most likely
have a compression check done at any auto repair facility

Posted on Apr 22, 2011

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3 Answers

How do i replace an oxygen sensor on 1993 cadillac deville


Re: Replacing O2 sensor - Cadillac Forums

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Dec 28, 2009 - 14 posts - ‎3 authors
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Jan 19, 2016 | 1993 Cadillac DeVille

1 Answer

1992 CHEVY ASTRO VAN KEEPS MISSING HUSBAND CHANGED DISTRUBUTOR , CAP , WIRE, PLUGS, COMPUTER AND STILL MISSING WHAT COULD IT BE


missing is not always the plugs ,HT leads distributor . Most times it is from misfiring injectors and low fuel pressure.

Mar 04, 2014 | 1999 Mercury Villager

1 Answer

Have a 1988 Cadillac DeVille 4.5L TBI. It's stalling and hesitating when put in gear. Changed plugs,cap,rotor, and wires. still has an issue. service light comes on and goes off and comes on again....


Changing the fuel filter isn't a bad idea prior to getting into the O2 sensor. You may want to consider replacing the TPS (throttle position sensor). Do an on board diagnostic test to identify the areas of concern. Most likely you'll get error codes for both the MAF sensor and the TPS.

Jul 17, 2011 | 1988 Cadillac Sedan DeVille

1 Answer

To get a tune up on m 95 cadillac deville what parts do I need.


I would start by getting spark plugs and spark plug wires. And find out (through part store)what the gap is for your plugs.Then i would replace the cap and rotor and check your air filter. If you have over 60,000 miles i would also change the trans.filter and fluid




Spark plugs
Spark plug wires
Distributer cap
Rotor (if applicable)
Air Filter ?

Jun 10, 2011 | 1995 Cadillac DeVille

2 Answers

Tuned up car changed 02 sensor full tank of fuel still running rough


Oxygen sensor only report the condition of the engine the rough running condition can range from a worn sparkplug wires to worn sparkplugs to valve problems to injector problems. with the cadillac deville a tune up should be the first attempt to smooth the rough idle with the inspection of the cap and rotor cap and rotor do have a tendancy to arc internally and create misfire so does sparkplug wire that can leak spark voltage to ground and create misfire. the spark plug wire especially if they are brittle and hard can create issues

Apr 23, 2011 | 1990 Cadillac Deville

2 Answers

1991 cadillac deville fwd 4.9 engine shudders hard under slight acceleration. replaced plugs,wires,cap,rotor button,ignition module,egr valve, cleaned throttle body, still have same problem


I have a 1991 Cadillac Fleetwood 4.9 120000 miles, I have the same problem. replaced plugs,wires,cleaned throttle body, and O2 sensor and have same problem. Taking it to a GM shop on 02/24/10.

Feb 13, 2010 | 1991 Cadillac DeVille

1 Answer

1989 Deville 4.5 TBI No start condition. I need a step by step Cadillac, or GM diagnostic procedure to double check what I have done. I have replaced: 4 of eight spark plugs that were fowled replaced...


A faulty map sensor will make it run rich and so will a bad or misadjusted TPS but it should try to crank. Check mat sensor. A stopped up converter will do this to.

Apr 26, 2009 | 1989 Cadillac Sedan DeVille

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