Catalytic Converter going out - Possibly

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Mjkkb2
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Car: 2018 QX60 AWD, 2011 M37S, 2011 Quest, 2001 I30t(sold)
Location: Richmond VA

Catalytic Converter going out - Possibly

Postby Mjkkb2 » Mon Feb 24, 2020 11:47 am

The car has developed this ticking/clicking sound in the last few months. Based on my research it appears to be the CAT. Watched a couple of YouTube videos and found similar sounding ones where the converter was the culprit. Not sure if it's one side of both. Cannot figure out due to the power steering whine that is also present, that I've been ignoring (hoping to be just low fluid). Kind of sounds louder on passenger side. Wondering if it is possible for them to go bad but not trigger the SEL. I have no lights, no codes. The car drives fine except for the noise. Wondering if anyone had to deal with it in their 3.7 M/Q.


Thanks
Last edited by Rogue One on Mon Feb 24, 2020 6:50 pm, edited 1 time in total.
Reason: TYPO


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Ilya
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Car: 2011 M56x but I spend a lot of time on my 2015 Kawasaki Vulcan S. Former owner of a 2007 M35x. Also take care of my wife's 2016 QX60.
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Re: Catalytic Converter going out - Possibly

Postby Ilya » Mon Feb 24, 2020 1:55 pm

Just for the sake of the community, from your research, how is clicking/ticking linked to the CAT?

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Mjkkb2
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Car: 2018 QX60 AWD, 2011 M37S, 2011 Quest, 2001 I30t(sold)
Location: Richmond VA

Re: Catalytic Converter going out - Possibly

Postby Mjkkb2 » Tue Feb 25, 2020 11:31 am

Ilya,

Wrong choice of words. I meant more like rattling. Sounds like this guy. fast forward to 2:12 min.

[youtube]www.youtube.com/watch?v=wQ7PR0RahcY[/youtube]

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armybrat
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Car: 2012 M56x with Tech Package
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Re: Catalytic Converter going out - Possibly

Postby armybrat » Tue Mar 03, 2020 8:59 am

You're lucky, 3.7 primary and secondary cats bolt on as one unit to the exhaust manifold. You can simply remove it and verify whether or not the substrate has broken apart. Plenty of options as far as replacement, either OEM or aftermarket.

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Mjkkb2
Posts: 679
Joined: Mon Oct 21, 2013 11:37 am
Car: 2018 QX60 AWD, 2011 M37S, 2011 Quest, 2001 I30t(sold)
Location: Richmond VA

Re: Catalytic Converter going out - Possibly

Postby Mjkkb2 » Tue Mar 03, 2020 9:59 am

armybrat - yes, lucky indeed, compared to your plight with the V8. I will definitely go hi-flow/aftermarket. No reason paying twice the price for OEM.


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