1999 Chevy Silverado 4.3 L catalytic converter glows red
Sep 1, 2017 @ 10:23 am
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.
Sep 1, 2017 @ 10:24 am
Is your car struggling to accelerate or has the check engine light on?