I have a 2001 Chevy Astro van w/a 4.3L. I can smell that rotten egg smell after driving and I know that means one of my cats are bad.

I have a 2001 Chevy Astro van w/a 4.3L. I can smell that rotten egg smell after driving and I know that means one of my cats are bad.

I have a 2001 Chevy Astro van w/a 4.3L. I can smell that rotten egg smell after driving and I know that means one of my cats are bad. Would i be a ble to drill a hole in order to clean it out and save myself some money for the time being or is that not a good idea?

That is never a good idea. Your O2 sensors will pick it up anyway causing the check engine light to come on. And as long as that is on, you can’t pass inspection. Plus, it’s illegal.

Matthew Vaughn
O’Reilly Auto Parts

You May Also Like

MAF and MAP Sensors

These small-but-mighty components play an outsized role in keeping fuel-injected engines running smoothly.

MAF and MAP Sensors

While it might not sound like it to the untrained ear, the orchestration of components to achieve the ideal combustion cycle is nothing short of a symphony.

For fuel-injected engines, two important instruments in this precise arrangement are the mass airflow (MAF) sensor and the manifold absolute-pressure (MAP) sensor.

Electronic Parking Brakes

Safety, convenience and holding power – what’s not to love?

Electronic Parking Brake
Driveshaft Dynamics

Don’t let the terminology trip you up.

Driveshaft
Serpentine Belts Have a Strong Supporting Cast

Tensioners, balancers and pulleys are working behind the scenes to maintain harmony under the hood.

Tensioners and Pulleys
Artificial Intelligence in the Automotive Aftermarket

The applications for AI are endless, but hurdles still remain.

AI Aftermarket

Other Posts

Interpreting Dashboard Warning Lights

Navigating the neon jungle isn’t as easy as it used to be.

Dashboard Diagnostics
Stopping Power: Brake Master Cylinders

The brake master cylinder is the hydraulic hero behind every safe stop.

Brake Master Cylinder
Winter Vehicle Prep

Keep your customers safe with these preventative-maintenance tips.

Deer-Collision Season: It’s Bucks vs. Bumpers

In the heart of deer-collision season, drivers need to be on high alert.