Symptoms of a Faulty Mazda B2600 Catalytic Converter
Because of your catalytic converter, your vehicle's harmful exhaust emissions are reduced by an ample percentage. However, with all the heat that your catalytic converter is regularly exposed to, this vital component of your exhaust system may eventually fail. Know how to diagnose and troubleshoot your Mazda B2600 catalytic converter troubles by taking note of the following:
Increased emissions of exhaust gases
Increased emissions of carbon monoxide (CO) and hydrocarbons (HC) mean that you have a fouled catalytic converter. A fouled converter is usually caused by lead, phosphorous, or silicone contamination. Lead used to be the most common contaminant when it was used as an ingredient in gasoline, but newer types of gasoline were able to eliminate this specific issue. On the other hand, contamination from the phosphorous in your motor oil or silicone in your coolant is still a major culprit behind a fouled catalytic converter. Try looking for any leaky valves, O-rings, or gaskets to know the root of your failed catalytic converter. To narrow down the source, see if white smoke is coming out of your tailpipe; this is most probably caused by a coolant leak.
Loss of power
Rough idling, acceleration problems, and stalling issues are just some of the problems that accompany a plugged or blocked converter. Any restriction in your exhaust system can lead to excessive backpressure and a choked engine. If you notice these symptoms in your pickup, then you should measure your exhaust backpressure using a pressure gauge or a vacuum gauge.
Poor fuel economy
Another symptom of a plugged catalytic converter is a decrease in fuel mileage. If your check engine light turns on and you notice that your miles per gallon is significantly reduced, then you might have a clogged catalytic converter. Examine your pickup for misfiring spark plugs or faulty valves, since these usually plug up your catalytic converter with too much heat or unburned exhaust gases.
Odd noises and foul odors
Unusually loud noises from your exhaust system is a sign of catalytic converter failure caused by internal damage. Due to the repetitive heating and cooling of your catalytic converter, the honeycomb structure inside it can become brittle and eventually collapse. Another symptom of a bad catalytic converter is a "rotten egg" smell from your exhaust system.