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Clogged catalytic converter now will not start?

Tiny
WILLIAM GASH
  • MEMBER
  • 2003 DODGE CARAVAN
  • 3.3L
  • V6
  • 2WD
  • AUTOMATIC
  • 178,000 MILES
Car gave catalytic converter codes, ran sluggishly, especially uphill, until it wouldn't get over 30 MPH. Tried to get back home but finally quit running. Cut exhaust behind cat and drilled holes through honeycomb. Used exhaust tape to mend the pipe but car won't fire. I'm going to try new plugs today, but as for now won't start.
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Sunday, March 12th, 2023 AT 1:22 PM

1 Reply

Tiny
KEN L
  • MASTER CERTIFIED MECHANIC
  • 43,034 POSTS
Chances are the catalytic material has clogged the exhaust pipe but to be sure we can lose the cat from the exhaust manifold to see if the engine starts. Here is a guide to help with instructions in the images below to show you how:

https://www.2carpros.com/articles/how-to-test-a-catalytic-converter

Let us know what happens and please upload pictures or videos of the problem so we can see what's going on.

Check out this guide as well:

https://www.2carpros.com/articles/car-not-running-advanced

Please go over this guide and report back. Check out the images (below).
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Monday, March 13th, 2023 AT 9:42 AM

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