advice

chevrolet/silverado/1999-2006

1999 Chevy Silverado 4.3 L catalytic converter glows red

Submitted by Jose F Contreras on Aug 31, 2017.

ANSWERS

BMWadict 1 year 3 months ago

You have a bad spark plug wire, coil or spark plug. Fuel is making it to the catlatyic converter that's why it is glowing red.

BMWadict 1 year 3 months ago

Is your car struggling to accelerate or has the check engine light on?