Catalytic Converter

What is a Catalytic Converter?

The Catalytic Converter is part of the car Exhaust System system. We have 5 associated problem symptoms connected to it.

We also have 74 owner problems that mention it.

What problems can be caused by a faulty Catalytic Converter?
74 problems that mention the Catalytic Converter

Showing the latest 10, see more problems here

Golf mk7 central locking stopped working

The central locking system has stopped working. I’ve changed the key fob batteries and the alarm system fuse- they look ok. Any advice on what has caused the system to fail?

2013 Volkswagen Golf 1.4 mk7
Posted: Nov 27, 2023
16 plate 1.6 diesel intermittent rough running

Started in 2022, engine will intermittently lose power and run rough rev counter fluctuates, usually lasted around 5 mins or so , initial diagnosis was Dpf issue, went into Citroen in October 22 for n...

2016 Citroen C4 1.6 blue HD
Posted: Jul 31, 2023
Low Power, Acceleration Poor

Car has very poor acceleration, struggles to get to 30 mph Just had the Catalytic converter and DPF Sensor Changed, and still no difference

2011 Vauxhall Insignia 2.0 CDTI
Posted: Jul 21, 2023
Purchase two 2023 Tucson limited six months apart and both have turned out to be lemons.

Purchased a 2023 Tucson limited November 1. Within the first 900 miles to the cylinders went out and shut my car down while I was driving on the highway. Then the air filtration system went out a coup...

2023 Hyundai Tucson Limited
Posted: May 25, 2023
Blowers not working

Blower not working, where is the fuse?

1999 Ford Focus 1.8 Zetec Estate
Posted: Mar 14, 2023
Catalytic converter failed at 33k

Engine management light came on, luckily I had bought it with 3 yr extended warranty. Main dealer advised the catalytic converter was faulty and replaced.

2018 Ford Fiesta Ecoboost
Posted: Nov 27, 2022
Turning over but won't start

Code throws up immobiliser fault. Had new fuel pump, fuel filter, cam sensor, throttle body, plugs and coils. Car cranks but no spark. Ran perfectly then after turning off won't start

2008 Skoda Octavia 1.6fsi manual
Posted: Apr 20, 2022
Engine stalled; starter will not turn over engine; waited 10 minutes and started turned over engine, engine started but stopped after drive engaged

No problem with car for several years; today engine stalled at 8:00 pm, lights on; rolled to edge of road; turned key fully anticlockwise and then clockwise to restart engine, heard click of relay but...

2004 Mercedes Benz A Class 190 petrol automatic
Posted: Feb 27, 2022
Cut Out and Wont Start

My Alternator Light came on and on trying to get the car home (3miles) the ABS and Power Steering lights came on, then the car cut out and will not start again, isn't even cranking. I have tried putt...

2007 Ford Fiesta Zetec S 1.6 TDCI
Posted: Jan 28, 2022
Using a lot of oil

Hi, my daughter has a Citroen C3 with around £48k miles. It seems to be using a lot of oil but garage has said that these cars use a lot. There is now an engine management light on and garage is sugg...

2014 Citroen C3 1.0 vtr pure tech
Posted: Jan 20, 2022
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Exhaust System parts