Catalytic converter glowing red

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11-12-2018, 06:11 PM

Horseman89

Thread Starter

Join Date: Nov 2018

Location: Ga

Posts: 1

Catalytic converter glowing red

Hey guys new member but been on the site before love it but i have an issue with my mustang its a 2000 3.8 old motor was bad on lifters decided to change motor with same kind got it running but now converter turns red hot i knw its from lean fuel new spark plugs, new wires, new everything literally, i like doing things the right way even if i take long on it but anyway i had this problem before a few years back i now cats are not clogged as i have checked them i now valves as other things could make it glow red what sensors could make it glow thanks in advance

11-13-2018, 05:39 AM

08'MustangDude

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Join Date: Jan 2018

Location: Pennsylvania

Posts: 2,327

Fuel in the exhaust will run them hot like that, not LEAN, rich... Lean will
have the combustion chambers run hotter, not the cats. RICH fuel can
run them red hot.

11-13-2018, 06:47 AM

GT Nate

2nd Gear Member

Join Date: Dec 2017

Location: Missouri

Posts: 444

could be a clogged cat too?

11-13-2018, 07:57 AM

ZEN357

2nd Gear Member

Join Date: Feb 2018

Location: Pittsburgh, PA

Posts: 166

Could be, but I'd make sure it's not a rich fuel mixture before replacing cats cause they can be expensive.

11-13-2018, 04:03 PM

08'MustangDude

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Join Date: Jan 2018

Location: Pennsylvania

Posts: 2,327

Quote:

Originally Posted by GT Nate

could be a clogged cat too?

Except where he said, in English, he verified they're not clogged....

Quote:

Originally Posted by Horseman89

Hey guys new member but been on the site before love it but i have an issue with my mustang its a 2000 3.8 old motor was bad on lifters decided to change motor with same kind got it running but now converter turns red hot i knw its from lean fuel new spark plugs, new wires, new everything literally, i like doing things the right way even if i take long on it but anyway i had this problem before a few years back i now cats are not clogged as i have checked them i now valves as other things could make it glow red what sensors could make it glow thanks in advance

Well, sort of English...

11-14-2018, 08:32 PM

ericwudi0830

Join Date: Jun 2017

Location: California

Posts: 32

Nice and welcome

11-20-2018, 01:53 PM

Peacetaker

Join Date: Nov 2018

Location: TX

Posts: 26

Quote:

Originally Posted by 08'MustangDude

Well, sort of English...

Gotta admit, the lack of punctuation made it so hard to read that I didn't read to that point, myself. I didn't want to go Grammar **** on him, so I kept reading the responses.