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What are the symtoms of a bad catalytic converter on a 2003 kia rio

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A bad converter will give off a "rotten egg" smell, restrict the exhaust & cause the engine to operate at a hotter temperature, the heater will be excessively hot, the radiator or heater core could begin to leak, hoses will have extra pressure on them & there will be blow-by fumes forcing their way back from the exhaust maniforld into the engine if the converter becomes too plugged. This causes your motor oil to become dirty much more quickly too, causing extra wear on the engine You can generally see a very rusted exhaust behind the converter once this has happened. You'll get a miss, followed by sputtering & eventually either a frozen motor, blown headgasket, cracked head, or other problems caused by heat. good luck

Posted on Jan 31, 2010


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How do i know if i need to replace catalytic converter for kia rio did tune up but still no power

You should get a "check engine" light and a code for converter. Might be air cleaner or something else.

Sep 11, 2014 | 2010 Kia Rio 1.4

2 Answers

Is the catalytic converter necessary

The cat. Converter is for emission for car inspections...if or state doesn't require it then from what I know..being a state inspector myself is they r required...
No sensors in converter itself but u should have a 02 sensor before it and after....sometimes they can be on it but not in it

Sep 02, 2014 | 2003 Kia Rio

1 Answer

I have 2006 kia rio the catalytic converter heated,i changed but still it can't climb hill.when idle i noise in the air cleaner housing.

You have not addressed why the cat overheated. One cause is the engine running rich. If you have not fixed that then the problem will still be present. That appears to be the case due to lack of power. Describe the noise

Mar 12, 2013 | Cars & Trucks

1 Answer

Chugging and running hot

If no yellow ck engine light is coming on to say that the car is missfiring Its possible you have a bad /plugged Catalytic Converter.

Aug 05, 2012 | 2003 Kia Rio

1 Answer

Water drips from exhaust? What causes this please? Not sure if it is when hot or cold or both, water is lukewarm.

It is not a problem. Water is formed by the ehaust gasses and the interaction with the catalytic converter.

Mar 26, 2012 | 2003 Kia Rio

2 Answers

P0139 and P0139pd are these codes for the O2sensor after the catalytic converter

bank 1 sensor 2. yes it is after the catalytic converter

Feb 17, 2011 | 2005 Kia Rio

1 Answer


these are not bad litte vans. you dont have to get the catalytic converter from kia. most exhaust shops will have weld on replacements for alot less money. this is coming from a kia master tech.

Jan 19, 2010 | 2003 Kia Sedona

1 Answer

2003 kia rio no power

Is the engine light on? If not it could be mechanical. The engine sounds like it is suffocating. This could be because of your catalytic converter, air or fuel filter. Take a look at the vehicles repair/maintenance history and go from there. If the car has over 100k miles then you may need the CAT.

May 11, 2009 | 2003 Kia Rio

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