Question about 1993 Cadillac Eldorado

1 Answer

The car started running extremely rough all of a sudden the cataletta converter is glowing red somebody told me to pull out the o2 sencers see if the car runs better if the converter was clogged but it didnt run better

Posted by on

  • 1 more comment 
  • debnjrussell Sep 07, 2008

    My cadillac El Dorado (touring coupe - 1993) is dumping too much fuel into the much that the car is sputtering, jumping/bucking and just won't run properly - it gets so much fuel that the catalytic converter was glowing red today....HELP!!!! We disconnected the exhaust before the catalytic converter and it didn't help - so it's not clogged.......

  • vhamilton72 Feb 06, 2009

    i have the same problem in my 1995 cadillac eldorado.someonetold me it has something to do with the o-rings .please help

  • vhamilton72 Feb 06, 2009

    if you have the answer please call me at 4047322576



1 Answer

  • Level 1:

    An expert who has achieved level 1.

  • Contributor
  • 1 Answer

If your converter is glowing it means that its clogged. You'll have to either replace it or break out the ceramic core. I'd recommend replacing it but this can be costly. To give it a quick fix you'll have to disconnect the converter and use a pry bar to break out the ceramic core, then reinstall the shell.. the down side to this fix is #1 emissions are higher #2 louder #3 may cause a problem with your O2 sensor....and may possibly be illegal

Posted on Apr 10, 2009


1 Suggested Answer

  • 2 Answers

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

a 6ya Mechanic can help you resolve that issue over the phone in a minute or two.
Best thing about this new service is that you are never placed on hold and get to talk to real repair professionals here in the US.
click here to Talk to a Mechanic (only for users in the US for now) and get all the help you need.

Posted on Jan 02, 2017


Add Your Answer

Uploading: 0%


Complete. Click "Add" to insert your video. Add



Related Questions:

1 Answer

Catalytic converter

The exhaust downpipe is glowing red with heat?
To be honest, that may be fuel-air /and or cylinder head problem. A downpipe gets very hot, yes, but they don't glow red.

A faulty oxygen sensor can cause the catalytic converter to overheat - with disastrous results.

If you're not sure what you're doing don't mess around with things. get somebody who knows what they are doing to look at your car and give you an opinion

Feb 17, 2016 | 2006 Nissan Sentra 2.5

1 Answer

Glowing Converter/ Muffler Noise/ Power Loss

your cat is plugged remove it and replace with straight pipe or replace cat

Apr 05, 2017 | 1994 Chevrolet Camaro

2 Answers

Converter glows red and backfires

obvously converter is pluged need to remove and verify if so install new one

Sep 09, 2012 | 2000 Plymouth Neon

1 Answer

Car engine is running rough sounds like a miss the what I believe is a catylitic converter connected to the exhaust manifold on the drivers side gets glowing red I was told this is do to it being clogged...

Yes it is true, I believe there are 4 cats on that car. burn the correct fuel in it and it will run better and not clog your cats, that car takes premium gas.

Jan 31, 2011 | 1991 Lexus LS 400

1 Answer

I failed emission because of a o 2 sencer were is

Its on your exhaust. There can be 1 - 5. Your van probably only has two. There is an upstream one (Before the catalytic converter) and a downstream one (After the catalytic converter)

Mar 25, 2010 | 1996 Dodge Caravan

2 Answers

1998 k1500 o2 sensor rattle, truck runs rough. would that cause it to run rough?

If O2 sensor is bad it can cause Rough running. Are you sure it is the O2 sensor ratteling? Have you taken it out to hear Rattle? Is it loose? I have not Hears an O2 Sensor rattle. I have heard Converters Rattle. over time Inner Material of converter will Not have a tight fit due to heating and cooling. expanding and contracting. carses some of the material to wear away. Causing the it to rattle. and can cause rough running also.

Oct 09, 2009 | Chevrolet 1500 Cars & Trucks

2 Answers


Have you checked the fuel pressure?

May 16, 2009 | 2002 Buick Park Avenue

1 Answer

Exhaust blows black on ford explorer

look for a vacume leak. black smoke means it is running very rich

Mar 17, 2009 | 1992 Ford Explorer

Not finding what you are looking for?
1993 Cadillac Eldorado Logo

Related Topics:

111 people viewed this question

Ask a Question

Usually answered in minutes!

Top Cadillac Experts


Level 3 Expert

77514 Answers

Colin Stickland
Colin Stickland

Level 3 Expert

22306 Answers

Ronny Bennett Sr.
Ronny Bennett Sr.

Level 3 Expert

6927 Answers

Are you a Cadillac Expert? Answer questions, earn points and help others

Answer questions

Manuals & User Guides