catalytic converter
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Public Service Message - AFTERMARKT O2 sensors SUCK!
I have a 2007 Yukon 5.3 that was throwing a P-0420 code indicating that my catalytic converter was bad. After doing some online research, I checked the usual suspects: vacuum leak, MAF, air box issues, and PVC - all were good. I figured that the next best bet was possibly a faulty O2 sensor...- 2Cool2Fool
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- catalytic converter o2 sensor rock auto
- Replies: 18
- Forum: Engine & Drivetrain
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2011 Tahoe/hollowed catalytic converters
2011 Tahoe Lt 5.3 4wd recently bought this vehicle and come to find out all 3 catalytic converters are hollowed out I had changed all 4 oxygen sensors because I had permanent code p0430 and p0420 codes SUV runs fine and all I can even pass smog inspection no check engine light I can remote start...- seakone
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- 2011 tahoe catalytic converter smog
- Replies: 19
- Forum: Engine & Drivetrain
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2002 6.0L Yukon Denali Backfiring thru intake under load...need suggestions
OK...so here is the backstory Driving on highway @75mph one evening and all is fine. Suddenly heard a loud noise and truck shuttered for a second. Thought i blew a tire or something. Pulled off the highway and got out to inspect. As soon as I opened the door there was the obvious very loud...- huston2326
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- backfiring catalytic converter cats exhaust popping
- Replies: 12
- Forum: Engine & Drivetrain
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Removing one catalytic converter instead of both
Hey guys I wanna start off by saying please don’t tell me how dumb I am or stupid it is to take a catalytic converter off I’ve already heard it enough. I also know it’s illegal and all that but I just am curious about this. So since I removed the driver side only instead of both of them I was...- Gucci2074
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- catalytic converter chevy dual exhaust exhaust tahoe truck
- Replies: 8
- Forum: Engine & Drivetrain
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05 Yukon XL 4x4 Rattling in bellhousing area with AC on
Hello new to the forums, just bought my 05 Yukon in december. Bought it at $214,000 mi it's around 216,000-217,000 now. From the Carfax history when I bought it and from the owner of the dealership who sold it to me personally because it was his personal vehicle, he showed me and the Carfax...- HighestStorm
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- ac compressor clutch catalytic converter help newbie rattle repair transmission yukon
- Replies: 13
- Forum: Exterior
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Code for catalytic converter came on in my 08 Denali 6.2
O'Rielly's said $700 for the dual portion of the exhaust and about $200 for the single portion to get rid of the code. I found cheaper on RA. Someone recommended just to delete it which I wouldn't mind at all except I want the check engine light to turn off. Anyone else done a delete before...- Damnali541
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- catalytic converter exhaust
- Replies: 1
- Forum: Engine & Drivetrain
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Engine Light comes on with 5 DTC's at the same time. I don't know what i Could be. Need Help!
Dear friends here from the forum. I'm a little desperate. I have had the engine indicator light on the display for a long time. I have read out the control unit and now have the following error codes P0064 P0060 P0420 P0430 p0446 On the picture only P0420 is seen. But I always get the P0430...- DJPoertsch
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- catalytic converter codes engine motor oxygen sensor
- Replies: 5
- Forum: Engine & Drivetrain
