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Many of the compounds that make your engine oil work better on the INSIDE of the engine are also "poisonous" to your catalytic converter as your engine starts to use oil.
The nice thing about catalytic converters, they burn unused hydrocarbons that come out the exhaust. You may not KNOW that your engine is burning oil until the catalytic converter gives out or even gets plugged up.
Watch the oil level in the crankcase. If it drops with no evidence of leaking, it's burning and your catalytic converter will die.
What else can I help you with?
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 does a catalytic converter go bad?
They can become clogged or they can burn out.
What causes the catalytic converter to go bad?
There can be a few reasons for a catalytic converter to go bad. One of the causes could be clogs. Other reasons include plugs not working right, and bad exhaust valves.
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.
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.
Will a 2000 Jetta GLS pass a smog check if a catalytic converter goes bad?
the shop I go to said that my 2000 Jetta would not pass the smog check when the catalytic converter went bad.
Will a vacuum leak cause your catalytic converter go bad?
It is possible but highly unlikely.
Can bad engine timing make a catalytic converter go bad?
Yes, the unburnt fuel from poor timing will enter the converter and slowly destroy it.
What makes the catalytic converters go bad on a 1996 740il BMW?
Air/Fuel mixture too rich, cylinder misfire, or external damage to the converter.
How long should a catalytic converter last?
A catalytic converter should NEVER go bad unless something causes it such as a RICH or a LEAN condition. What is a "RICH OR A LEAN CONDITION"?
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.
Can burning antifreeze cause the catalytic converter to go?
Yes, internal coolant consumption can damage a catalytic converter.
