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
What are you trying to ask?The one on the manifold is your pre or pup cat.Which one is bad?
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
That would be the rear cat not the manifold one.
Thank you for your help
Your welcome thats what were here for.
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