Pontiac g6 catalytic converter failure

GM does have a a lot of trouble with injectors, not only that they fail electrically, but that they are not flow-matched at the factory. If one flows more or less than the rest, an incorrect amount of unburned oxygen will show up in the exhaust. Based on the oxygen sensor's readings, more fuel will be commanded by the Engine Computer, but it increases flow equally among all of the cylinders, even those that don't need more. The best way to avoid this is to buy remanufactured injectors because you will get a matched set.

When your mechanic buys them and installs them, you will get a warranty for parts and labor to replace them. If you buy them, which is like bringing your own food to a restaurant, and one fails, you will be charged again for the diagnostic time and the time to replace it.

You will also have to find and order the replacement again. If the catalyst melted from too much raw fuel and the resulting overheating, the Check Engine light should have been flashing. Is there any chance the converter is still under the emissions system warranty? Caradiodoc Was this answer. I was told after my SES light came on that I needed a new Bank 1 sensor; purchased and replaced the sensor.

A few hours later, SES light came back on. My car is still sluggish and slow to accelerate. Took it back to get the code read - and said I needed a new catalyitic converter. I have 66K miles on the car. Is this a common problem? Does my cc really need replaced? No it's not common but it does happen with the converter. It's mechanical so it can break. If the dealer will replace it then let them have at it as it won't cure itself.

I had a new engine put in and now I need a catalytic converter. I think they said rear converter if that means anything. I dont have the funds to spend at another repair shop, what are my options? The car is driving fine but I need an inspection asap Was this answer. Your options are replace the converter or fail the inspection. You might want to check an exhaust specialty shop as they often have an aftermarket equivalent for a lot less money than OEM.

The catalytic converter itself is a part of the exhaust system. They almost always have a heat shield around them and an oxygen sensor somewhere before them. It is necessary for the catalytic converter to be before the muffler. The muffler is really the only thing that you can confuse for the catalytic converter on your Pontiac G6. The catalytic converter may be bolted or welded on depending on the year and make of the vehicle. The catalytic converter for your G6s cost will vary by model year and engine size.

But, as a rule catalytic converters are not cheap. They are one of the most stolen items on a vehicle there is.

It is not uncommon for the catalytic converter to fail, as the years and mileage take their toll. When your G6 has a major engine problem, the check engine light will begin flashing.

In most cases, this flashing condition occurs to help try and save the catalytic converter.