Mechanics

WHICH ONE IS MY CATALYTIC CONVERTER

2006 Hummer H3 • 5 cylinder 4WD Automatic •

I need my catalytic converter replaced but they show two converters 1 is a manifold and 2nd one is a rear converter which one is the right one
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Chuyarm
August 20, 2011.



What are you trying to ask?The one on the manifold is your pre or pup cat. Which one is bad?

Saturntech9
Aug 20, 2011.
Gm dealer scanned car and got p0420 code catalyst low efficiency bank 1 recommended converter replacement so I dont really know which one to replace

Tiny
Chuyarm
Aug 20, 2011.
That would be the rear cat not the manifold one.

Saturntech9
Aug 20, 2011.
Thank you for your help

Tiny
Chuyarm
Aug 20, 2011.
Your welcome thats what were here for.

Saturntech9
Aug 20, 2011.