AskPatty Certified Female Friendly Logo
If i cut out the catalytic converter in my 2004 Pontiac 2000 will it cause any problems?

Answers from the Automotive Experts

Amy Mattinat, Owner and Author at Auto Craftsmen Ltd Oh Dear Bob, Yes this will cause problems. #1 it's illegal. Federal regulations say every vehicle that came from the factory with a cat needs to have a cat. They are used to reduce harmful emissions from the atmosphere. They are used to reduce harmful emissions from the atmosphere.

Gail Dunn, Owner at Women's Automotive Connection Removing a catalytic converter is illegal, both federally and in most states. If you have emissions testing, you will not pass. I would not recommend this.

Gelina Aquilina, Service Advisor / Mechanic at It won't pass smog

Maryann Croce, Owner at Croce’s Transmission Specialists Bob, On your 2004 Pontiac: I recommend replacing a bad catalytic converter NOT removing. Removing is illegal. Catalytic converter reduces harmful vehicle emissions. A check engine light will appear without a catalytic converter and a vehicle will not pass smog or emission testing.Good Luck.

Contribute to this question:


blog comments powered by Disqus

Related Pontiac 2000 FAQs


  • Help 2004 Pontiac Grand Prix Does Not Start, Does Not Turn Over, No Sound At ... Read More
  • I have a Pontiac Grand AM SE 4 door sedan. Had an accident and the front wheel is broken ... Read More
  • Car keeps stalling randomly. Have replaced spark plugs, bmc control, no codes when ... Read More
  • I have a 1999 pontiac grand am and I am hooking a new aftermarket stereo system in. I ... Read More
  • The front two tires on my Pontiac 2000 are about to go, they are 225/50's. I have an s10 ... Read More
  • My Pontiac 2000 won't stay running with the alternator plugged in. NEW alternator, plugs ... Read More
  • All the lights came on and says it's doing a system check on my Pontiac 2000. It's also ... Read More
  • My radio works 2000 Pontiac but can't see the information so I don't know what channel is ... Read More
  • I just put a new radiator, a new cap, a thermostat and hosing. I drove it on the hey ran ... Read More
  • I can start my 2000 Pontiac 2000 but I cant get it out of park.. it has been really hard ... Read More

Need Car Advice?

Ask The Experts!

Find Cars For Sale

Help Our Charities