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Barely runs, catalytic converters turn red hot

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Catalytic converter sound like it plugged stopped up.

Posted on Jan 13, 2013


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Could the wrong engine computer, bad injectors or a bad catalytic converter cause my engine to misfire and the exhaust to turn red hot right behind the catalytic converter???

Red hot is the best clue. I suspect a bad converter. Try disconnecting the converter and run to test. Look inside the converter to see if it is clogged with melted stuff or carbon. Bad gas in tank? How could it possibly run well if this is true? Clean tank and use fresh fuel.

Jan 23, 2015 | Cars & Trucks

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2001 Caravan has red hot catalytic converter and #4 misfire error code.

Engine is way too rich. You will burn that car up. Unburned fuel is getting into the CAT and igniting. Check the injectors.

May 02, 2014 | 2001 Dodge Caravan

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2000 ford taurus won't crank immediately on cold engine. takes anywhere from 5 min to 2.5 hrs to crank depending on the weather. the hotter the better. fuel pump/filter have been replaced. IACV has been...

You do not mean cranking,the starter turns
over the motor,that is cranking, is it not

You mean it doesn't start,that is a NO Start Condition

Lets use common sense here

You didn't need to ask any questions here
because the exhaust converter gets red hot & the
car is not only unuseable but overheats

Your looking at at least $1000.00 to diagnose &
resolve many problems

The converter is 14 years old & if it wasn't red hot,
it is time to replace it

It is hot for several reasons,you did not say what motor is in there

The timing is most likely an issue

Also you can not replace the converter until you replace
the spark plugs,get rid of any cylinder misfires,rich fuel conditions,fix fuel trim,& such, all of which along with timing
& I mean serious mechanical repairs, have attributed to ruining
the converter,oxygen sensors,all of them, from the heat
& the list goes on.

Lot to have checked out & you can't do it in your driveway
with no experience & no professional test equipment

Sep 13, 2013 | 2000 Ford Taurus

1 Answer

Catilitic converter red hot now car wont start after its cooled 1996 cavilier

You should never drive a car with a red hot catalytic converter. If the catalytic converter is heater up to the point where it is that hot, it could be a serious fire hazard. Cars which might have a leak in a fuel line could be at a major risk for a fire or explosion if gas fumes come into contact with a catalytic converter in that condition. -----------------------------------------------------------------
Lexia-3 pp2000

Dec 06, 2012 | Cars & Trucks

1 Answer

Losing speed on my 1991 honda civic

Possible clogged catalytic converter would be the first thing to look at but if that is the case the Check Engine light should be illuminated. If the CE light is on, then you should get the code Catalytic Converter below threshold. Your converter will also get very hot with the engine running. It will get so hot it will turn red. You may also hear a hissing sound at the exhaust manifold.

Jul 06, 2011 | 1991 Honda Civic

1 Answer

The after run the car for 2 miless or more the catalitic converter turns hot red and the the engine lose power and stops runing

The catalytic converter may be plugged up and in need of replacement, or too much unburnt fuel is entering the exhaust causing the catalytic converter to turn red hot due too much hydrocarbons being processed by the catalyst.

Good luck on this repair.

Jan 14, 2011 | 1996 Ford Thunderbird LX

2 Answers

New catalytic converter gets red hot

clogged , check the rest of your exhaust after cat to see if it gets hot

you can buy a no contact thermometer for less than $55.00

but the shop that installed the cat should have that

good luck

Jun 03, 2009 | 1989 Isuzu Trooper

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