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Mass airflow sensor and or aircharge sensor is bad

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Q: What would cause the catalytic converters to get cherry red on a 97 f150 with a 4.6 engine?
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What would cause the catylitic converters to turn cherry red on a 97 F 150 with a 4.6 L engine?

this is caused by the catalytic converters are clogged .


What could cause a catalytic converter to rattle.?

Catalytic converters do not rattle. If it does it will need to be replaced as it may block the exhaust. Loose heat shield?


Does unfixed catalytic converters damage the car?

Yes, it could restrict the exhaust and cause problems


Does non oxygenated gasoline cause damage to catalytic converters?

No. Oxygenation just helps get more complete combustion, both in the cylinder and the catalytic converter.


Can a hot catalytic converter cause a engine to serge and stall?

Converters get hot when they operate and this is normal. However a partially clogged converter will get excessively hot and my even turn red. This will cause a loss of power, stalling, and surging.


Could Catalytic converters clogged on 1991 GM Sonoma truck cause it not to stay idled?

Probably not. They would have to be clogged solid not to let engine idle in which case the engine would not run at any speed. If they were semi-clogged the engine would idle but hold engine back from revving up.


Can a catalytic converter cause engine loss of power?

Yes


Why would the catalytic converters get red hot and glow as well as effect power on a 2001 Yukon XL with a 5.3 liter Vortec engine?

Excess fuel can super-heat the converter causing the converter to meltdown. The excess fuel can be the result of many possible engine malfunctions. The converter meltdown would result in blocked exhaust flow resulting in power loss. At this point the converters are junk. Do not just replace the converters without correcting the cause.


Does the check engine light come on if the catalytic converter needs replacing?

A failed catalytic converter is one of hundreds of parts that can cause the check engine light to be on.


Why would a new catalytic converter be heating up in a 1989 Buick Skylark with new plugs and muffler?

Catalytic converters run a couple hundred degrees hotter than anything else that has to do with the engine, or exhaust system. It is just the nature of their design that cause them to have a high temperature. Thats weird - catalytics usually warm up when they are active, meaning that they are working on cleaning the junk from the engine. So either you have a misadjusted - polluting engine - or the mufler is blocking some of the output and they are incresing the heat. Catalytic converters do tend to run hot by the way. On many cars there is also a feedback mechanism - via oxigen detectors which may be not working so the feedback to the engine is faulty and it is giving erroneous input to the engine management system.


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.


What is the lifespan of a catalytic converter?

That depends on the engine and the fuel you've used. If the engine starts burning oil a catalytic converter can fail rapidly. Some fuel additives can also cause a catalytic converter to fail prematurely.