GMT 900 Trucks General Discussion 2007 - 2013 Trucks | General Discussion

Which brand o2 sensors?

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Old Oct 1, 2018 | 05:03 PM
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Default Which brand o2 sensors?

Which brand o2 sensors do you guys prefer and why? Getting ready to replace the ones on my 2008 Sierra Denali w/ 190k miles
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Old Oct 1, 2018 | 05:07 PM
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AC delco/Delphi sensors.
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Old Oct 1, 2018 | 07:28 PM
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Originally Posted by FFDP
AC delco/Delphi sensors.
This. Anything else and it can cause issues.

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Old Oct 2, 2018 | 12:38 AM
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Did some research before I replaced my 02's. Read from multiple sources that AC Delco no longer makes 02 sensors for GM cars and if you buy AC Delco you'll receive Denso sensors in the Delco box. If true you may as well buy Denso and save money. I've had no issues with the Denso's but only have 2,000 miles on them.

Originally Posted by LS6427
AC Delco 02 sensors are not being made anymore....its been almost 8 years. It is possible though that a few are laying around on shelves still that you might find.....

If you go to any GM dealer and buy 02 sensors you will be handed an AC Delco box with Denso 02 sensors inside. Denso 02 sensors became the choice of GM to replace the AC Delco sensors.
Denso Sensors LS1Tech
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Old Oct 2, 2018 | 12:33 PM
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I’ve always had the best luck with Bosch...
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Old Oct 3, 2018 | 05:40 AM
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Bosch owns the patent and licenses it to everybody else.

I've never had ANY trouble with ANY brand of those in ANY car I've ever changed them in, that was in ANY way attributable to the brand. (I cross-threaded one once... only trouble I've ever had with one AT ALL)
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Old Oct 3, 2018 | 08:37 PM
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Thanks for the advice guys! I think I'll give the Bosch sensors a try. It's only money right? Haha
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Old Oct 4, 2018 | 07:59 AM
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Lol. I keep my GM all GM. Figure if it's made to last to that 100k mile powertrain warranty, should be good enough for the next 100k
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Old Oct 4, 2018 | 08:34 AM
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A friend of mine at work was having trouble with his o2 sensors and a check engine light. It was an Astro van with Bosch sensors.

I told him to pull that **** out and put Delco/Denso sensors in it and he thought I was crazy because they were brand new.

He did replace them with Denso sensors and nothing else changed and his check engine issue resolved itself.

Not all sensors are made the same nor do they work the same in all vehicles.

Do what you want but I won't ever put a Bosch sensor in any of my GM vehicles.

BTW, the difference in cost from Bosch to Denso was $10 per sensor.
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