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Hard starting, loss of power, poor fuel economy, and the check engine light should be on.

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Q: How do you know when a catalytic converter has gone bad?
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Related questions

Why does your 2000 Nissan Xterra does not start?

Catalytic converter gone bad


How do you know if a converter is bad on a Kia Rio?

Transmission torque converter or an exhuast catalytic converter?


How can you pass inspection when you need a catalytic converter?

There's no possible way to pass inspection with a bad catalytic converter, if if you find out you have a bad catalytic converter during your inspection you have a chance after you after you have replaced the catalytic converter and the inspection no no charge/free!!


How do you know catalytic converter is bad?

A bad catalytic converter will cause a severely restricted exhaust system. You would notice a lack of power and performance from you vehicle and in cases of a completely blocked converter, the engine may not run.


How do you know which oxygen sensor on your 95 Dodge Intrepid is bad if the shop wouldn't say which one was bad unless the work is done at their store?

I believe bank 1 sensor 1 is Passenger side before catalytic converter. sensor 2 is after catalytic converter. bank 2 sensor 1 is Driver side before catalytic converter. sensor 2 is after catalytic converter.


How does a bad catalytic converter effect the way the car run does it feel like the car is struggling to pick up speed?

A foul smell is the most common sign of a bad catalytic converter. If you smell what seems to be a rotten egg and it gets stronger over time, the catalytic converter is not working properly. A large drop in your fuel economy may be a sign that your catalytic converter is going bad or is blocked. A lack of power, especially at high speeds, may be a sign that the catalytic converter is going, or has gone, bad.A vehicle that stalls during idle, or idles rough, may have a blocked or bad catalytic converter. Your catalytic converter may be blocked if you experience bucking or hesitation while trying to accelerate. Additionally, your vehicle may run at a higher than normal temperature. A catalytic converter typically doesn't go bad without an underlying cause. A mechanic should be able to find the original problem and may not have to replace the converter.


How do you know if your catalytic converter is bad in a 1999 ford expedition?

Loss of power, poor fuel economy, and converter gets extremely hot.


Can a catalytic converter cause the EGR valve to go bad?

No, the catalytic converter is downstream from the EGR valve so it has no effect on it.


How do you know if your catalytic converter is bad?

Depending on the year of the vehicle, the check engine light would illuminate.


Can a bad catalytic converter damage the ignition coils or a bad ignition coil can cause to catalytic to go bad on a ford expedition?

A bad coil can damage a converter. If the engine is misfiring, it will cause raw fuel to get into the converter and that can cause failure.


Can a bad catalytic converter cause hard starts?

A bad catalytic converter can cause hard starts if it has become clogged. This produces excessive back pressure in the engine.


Will bad ignition coils cause the catalytic converter to heat up and go bad?

Yes. If a coil is bad causing one or more cylinders to not fire, this allows raw unburned fuel to enter the catalytic converter, where it is burned. This can ruin a converter.