BigPapiCares
New Member
- Joined
- Oct 20, 2016
- Messages
- 7
Hey there everybody! Need some help regarding O2 sensors on my 2005 Chevy Avalanche 1500 LT. What I'd like to get some straight forward answers to are this: 1) Are the upstream and downstream sensors the same exact part or different? I know theres 4, I know one of them is bad, I need to change it out, I have found many informative videos, pictures, diagrams, I've found parts numbers that match for replacements, I just want to know before ordering the sensor if its for sure the right one, I've have it diagnosed(like 3years ago lol) and of course forgotten which one it was, but thats something I'm still working on to finding the papers from that diagnostic. 2) Is there a SPECIFIC brand that I should be buying as replacement? I see denso, bosch, acdelco, all that say fit with my vehicle, I just want to be sure. Thanks in advanced for any input!