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Replace 2 Cats & Pipes--How Hard a Deal?

Short_Bed Silverado

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Short_Bed Silverado Enthusiast

Short_Bed Silverado

Posted
Posted

Well, after 90k, the dreaded P0430 fault code popped up indicating a bad cat on the passenger side of my 2002 Silverado 1500 V6 4.3L 4 x4. (Yeah--I don't drive it much.) The dealer "diagnosed" this fault code, as I don't have a scanner nor code reader. Said it was the only code thrown.

 

Could this P0430 fault code be thrown from just a bad "aft" O2 sensor and not necessarily the one cat?

 

I hear this fault code 90% of the time means a bad cat.

 

If I have to replace one cat, may as well replace both, eh? I see I can get two new cats with all the pipes on ebay for $222 delivered from an outfit called "Car Parts Wholesale" out of Illinois. (anyone ever dealt with 'em before?)

 

I hear a lot about replacing the cats and pipes with having to drop down the tranny support in order to put in these devils. Anyone ever done one? How bad was it?

 

THANKS!

 

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post-124265-0-71667000-1434596693.jpg

post-124265-0-71667000-1434596693.jpg

post-124265-0-71667000-1434596693.jpg

Chris Senior Enthusiast

Chris

Posted
Posted

Well, after 90k, the dreaded P0430 fault code popped up indicating a bad cat on the passenger side of my 2002 Silverado 1500 V6 4.3L 4 x4. (Yeah--I don't drive it much.) The dealer "diagnosed" this fault code, as I don't have a scanner nor code reader. Said it was the only code thrown.

 

Could this P0430 fault code be thrown from just a bad "aft" O2 sensor and not necessarily the one cat?

 

I hear this fault code 90% of the time means a bad cat.

 

If I have to replace one cat, may as well replace both, eh? I see I can get two new cats with all the pipes on ebay for $222 delivered from an outfit called "Car Parts Wholesale" out of Illinois. (anyone ever dealt with 'em before?)

 

I hear a lot about replacing the cats and pipes with having to drop down the tranny support in order to put in these devils. Anyone ever done one? How bad was it?

 

THANKS!

 

attachicon.gifm2bDLDsvaNCzmuav_zwjwbQ.jpg

 

 

 

 

 

 

 

Done it on a 4.8 to put in the stock dual 6.0 pipes in. It is a pain in the ass and involved me getting annoyed and grabbing a sawzall to get it out. Do your self a favor go to a shop, have them cut out the cats and weld new ones in their place
Short_Bed Silverado Enthusiast

Short_Bed Silverado

Posted
  • Author
Posted

Thanks, Chris! Your advice is definitely on-the-table. With only one of my two cats showing "bad," I can have just one cat welded in.

 

If the other cat lasts, fine and dandy; if it fails later, I can have another one just welded in.

 

This way--no need to fiddle around with the pipes + grief. Keep the old pipes in.

 

Me--at 70 years old, I don't need any further grief in life. Been there, done that.

 

I have laughed and I have cried--and I much rather laugh!

 

Thanks!

Chris Senior Enthusiast

Chris

Posted
Posted

After my pipe change and one failed i just went to a shop, spent $180 and had one welded in

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