Best, Ken Was this answer helpful? Top speed was 45 mpr and idling very rough. I had my car checked because the service the engine light was on. I was told my catalytic converter was going bad. I had three coils in the back replaced and was told the other three needed replaced.
I haven't seen that many coils go bad at once? Sounds like you have a plugged cat have a exhaust back pressure test done. Will a clogged cat cause the power to drop? A plugged cat can greatly effect how the engine performs. See if you have a nice blue spark from the coils that they say need to be replaced? If they do they don't need to be replaced.
Codes kept saying bank 1 and 2. Corrected the issue but the car kept cutting off. Finally, I took the car into the dealership.
They said the catalytic converter is bad in the center. Is there a cheaper way to replace the catalytic converter other than the dealer replacement? I was wondering if there is a way to wittle down to see if maybe it is not my catalytic converter starting to plug up?
Do you. You will need a oscilloscope or a scan tool and watch the rear o2 sensor for that bank. Image Click to enlarge. Was this answer. A broken catalytic converter is not uncommon at all. The catalytic converter can overheat and show signs of failing when the engine misfires.
And it is the first symptom of the bad catalytic converter symptoms. Also, you will see the similar signs when there is a very rich fuel mixture in the oil tank. Extremely rich fuel mixture causes ignition by making raw fuel entering the converter. The condition is dangerous since it can melt the catalyst components. Losing power during acceleration or going uphill is one of the most common clogged catalytic converter symptoms. Mechanics often misdiagnose this cause, especially in case of partial clogging, and suggest changing of a few components, which is unnecessary.
You can be sure about this problem by applying a simple test. Apart from the obvious low-powered acceleration, you can check the exhaust with your hand. If you get a hot feeling of exhaust flow, the converter is definitely clogged. An overall degradation in the engine performance is another sign.
It happens because of the back pressure that the failing converter creates, affecting the engine and preventing it from running freely. It makes your car shake and the sudden burst of pressure can sometimes stall the engine too while you are driving. It will degrade if the converter is failing and the problem can be traced back to an error in the fuel system. If your vehicle has a carburetor instead of a fuel injection , you can be sure of a poor catalytic converter by doing the fuel vapor test.
Remove the air cleaner and ask an assistant to flash a torchlight near the carburetor intake. Increasing emissions is one of the bad catalytic converter symptoms you should notice. The current and failure mileages were 24, While driving catalytic converter developed a crack. Owner contacted the dealership regarding the problem.
There is a problem with the catalytic converter. Consumer states vehicle is out of warranty. Dealer notified. Catalytic converter rattling inside. Replaced by dealer. The catalytic converter has been repaired twice and is out again. The abs brakes failed almost causing an accident. Dealer contacted, and stated the vehicle did not comply with the recalls. Provide further information. Took to dealer to have vehicle checked. Was told that the catalytic convertor had to be replaced.
The "Italian Tune-Up" is a common fix for a range of automotive problems, including a clogged catalytic converter. Running a vehicle harder than usual for a few miles e. For example, if you typically fill your vehicle with the cheapest low-octane fuel, try running your vehicle on a few tanks of high-octane fuel. Adding one gallon of lacquer thinner to ten gallons of gas at your next refuel may also be effective clearing out catalytic converter deposits.
You can try either of these methods in combination with the Italian Tune-Up method. You may need to fix other engine problems in order to solve your catalytic converter problem. A lazy oxygen sensor might falsely indicate a catalytic converter problem, yet not set a DTC for itself. A technician can determine if the sensor is responding as it should.
Other engine problems, such as fuel trim running too rich or too lean, oil or coolant burning, or engine misfire problems could all lead to catalytic converter contamination or premature failure. Depending on the extent of the damage already done, fixing engine problems might save the catalytic converter from a meltdown. Exhaust leaks are common and can skew oxygen sensor readings without setting other DTCs.
Worn exhaust gaskets and corroded flex pipes are two common issues that are significantly less expensive and more effective than replacing a catalytic converter. Removing and cleaning the catalytic converter is another potential fix.
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