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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?
Wiki User
∙ 9y ago
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.
Wiki User
∙ 9y ago
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