[RoadRunnerCo]

Dear community,
As I mentioned in another thread, I jumped to Volvo less than a year ago, and fell in love with a 2010 xc60 T6 and to be honest experience has been very good. (now it's 80k miles)

is the 2008 xc70 a split year? Missing coolant hoses in...

Hello fellow Volvo enthusiasts! Today I went to investigate a coolant leak from our 2008 xc70 3.2 I quickly identified a leaking front hose and recorded the part numbers. The number on the leaking rubber hose (7g9n-6w02-aa) resulted in nothing when I did a google search. I recorded a few...

www.swedespeed.com

Eventually I got the feared check engine yellow light, related with catalytic converter, (later I realized the alarm p042 was showing)
The main mechanic did deep cleaning of the oxygen sensors and cleared alarms.
After 2 or 3 hours of continuous operation I got the yellow light engine again,
the mechanic advice of the recurring alarm could imply replacing the catalytic converter.
So, I thought (at fourth alarm reset and reappear cycle) it was time for carefully checking the catalytic converter. So, I was remitted to the exhaust repair shop.

As Volvo fan I dedicated some hours to the investigation, and realized that information about catalytic converters for Volvo XC 60 is rather scarce. (XC 90 has more info)
So, to my knowledge the automakers are not interested in making catalytic converters, and they seem also not to be interested in distributing them either.
So again, you have to look forward to your own solution or hack.

Before replacing it, the exhaust repair shop offered me the option to make a deep cleaning.
which I approved before going into the definite replacement.
to my surprise, the mechanic told me that when disassembling, there was no grid inside the converter.

I got upset because I would like the former owner to notify this to me.
I moved forward with the filter replacement that it’s somewhat expensive.

when waiting the confirmation, I receive another call that telling me that the car had not only one but two catalytic converters, and the second one grid was present but useless, and to complete the repair man he needs to replace both filters.
So I’m an more confused than angry, because the two grids will increase my expense 2x, and I would like to know if the catalytic converter nearest to the engine is the most important one.

Note: in my country there’s no enforcement to keep catalytic converters optimal, given that the emissions test is OK. However, for the health of the car, and my environment I would not let it run without the grids.

I will upload some pictures for complementing the info.

I'd appreciate any feedback,

Thanks a lot.

 

[Wayne T5]

Maybe something's being lost in translation but on a T6 there's only one cat. On the NA 3.2 motors there's two.

 

[rsussland]

If there was no honeycomb in the cat when you bought the car, why did it take a year to get the cat efficiency code, and yet it came back 2 hours after being cleared?

 

[hoonk]

the mechanic told me that when disassembling, there was no grid inside the converter.

the car had not only one but two catalytic converters,


View attachment 188028

There's only 1 cat, and your picture above shows the front honey comb in the catalytic converter, I do see where someone cut the back of the converter open - so - what's getting lost in translation? There are 2 honey comb wafers in a catalytic converter. The first wafer converts HC and CO to H2O and CO2 using left over O2 in the exhaust. The second wafer deals with the nitrous oxide. So yes there are 2 wafers in the 1 converter - but you don't buy converter parts and "rebuild" them. You just replace the converter if it no longer converts - usually due to contamination or failure from overheating (a missfiring spark plug can cause a melted converter due to too much unburned fuel, but yours does not look melted ) And certainly many times a wafer will break up and blow into the rest of the exhaust system - the ceramic honeycombs are pretty fragile and break easily if the steel wool padding between the wafer and the metal can degrades and no longer cushion the wafer.

Parts pages below for converter and the rest of the exhaust.

 

[RoadRunnerCo]

Wow, thanks for the feedback

I must admit that the most I learn about catalytic converters, the most I realize I have to learn.

This time is difficult for me because due to my daily duty, I had to leave the car on the garage, not able to check what's really happening.

It's better to make decisions reasonable well informed, this time however I am not sure if the exhaust guy is confused or just trying to trick me on.

I do agree that the picture showing "the grid" looks good.

 

[xatig42682]

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[zak]

Clogged injectors can set a code for the rear oxygen sensor-catalytic converter efficiency

 

[355 lbft]

My catalytic converter failed after 7 years. Fortunately it was covered by the warranty. If it fails again I will buy this plus it will improve performance:

iPd Downpipe Upgrade, Volvo S60/V60 T6 AWD, S80II T6, V70/XC70 III T6, XC60 T6

ViVA Performance specializes in performance and maintenance car parts and accessories for Volvo, Polestar, and Saab models.

www.vivaperformance.com

 

[MjollnirXC60]

On my 2014 T6 I’ll get the code every once in awhile. Usually when the tank is 1/4 to empty. It’ll go away after a while. I’ve tried a few “CAT cleaners”. Some clear the code right away. Others take a tankful or more. I’m at 166k and recently got the MIL again but it went away next few drive cycles