Burned up plugs and wires

Asked by R Edgardo Dec 26, 2017 at 03:26 PM about the 1986 Mercedes-Benz 300-Class 300E Sedan

Question type: Maintenance & Repair

Would a bad catalytic converter burn up plugs and wires?

3 Answers

F_O_R answered 6 years ago

Excessive back pressure can make the engine run hot. Then again misfires from bad plugs could ruin the cat.

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R Edgardo answered 6 years ago

Also I notice a burning smell coming from under the car when I’m at a stop while driving. Could this be the catalytic converter as well?

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