New OEM O2 sensors

[mijohnst]

I just ordered 2 new upstream sensors for my 2005 Tahoe and noticed after I installed them that the connections weres almost too short. There is literally no play. Has anyone else had that issue?

 

[drakon543]

yes that's definitely possible especially if you opted for some cheaper aftermarket ones. with aftermarket ones ive had to reroute a bit on different vehicles to get some extra slack. ive also had the opposite and ended up with way too much. oem ones tend to be more vehicle specific where aftermarket ones will group matching o2 sensors with style and plug and give it enough cable so its more universal. nothing wrong with it you might just have to unclip the cable somewhere to give yourself some extra slack.

 

[OR VietVet]

I just ordered 2 new upstream sensors for my 2005 Tahoe and noticed after I installed them that the connections weres almost too short. There is literally no play. Has anyone else had that issue?

When you say oem I am assuming that you got AC Delco. Is this the part number for them because these are listed as up stream: https://www.rockauto.com/en/moreinfo.php?pk=438154&cc=1431156&jsn=2249

These are listed as downstream: https://www.rockauto.com/en/moreinfo.php?pk=539430&cc=1431156&jsn=2248

This is a Delphi listed as upstream: https://www.rockauto.com/en/moreinfo.php?pk=1323899&cc=1431156&jsn=2250

This is a Delphi listed as downstream: https://www.rockauto.com/en/moreinfo.php?pk=1323557&cc=1431156&jsn=2253

 

[mijohnst]

Well, I'm a *******. I figured it out. I *thought* I bought new upstream O2 sensors...and so that's where I put the ones I bought. Thank you for posting the links, Ron. I went back and looked and it turns out that I bought 2 downstream sensors and put them in the wrong spots and that's why the wires were too short. Live and learn... thanks again for the help guys!

 

[Wylie_Tahoe]

Bummer! on my 03, all 4 are the same sensor.

 

[OR VietVet]

My 2002 Tahoe is the same, all 4 sensors are the same part #.

 

[mattbta]

My 2002 Tahoe is the same, all 4 sensors are the same part #.

Yeah, I panicked after I saw your post listing different upstream/downstream as I replaced all 4 of mine (2004 Flex) with a single part number. Went to the delco site and put in 2005 and sure enough they were different. Then put in my model year and listed only the single. Whew.

 

[OR VietVet]

I have not had to replace mine since I have owned it, 4 years, but I have looked ahead just in case. Mike has the 05, so yes, things can change year to year and that is why I BEG all members to put their rig info in their signature. People get in one forum, 2000-2006, and when we look for info that can be different year to year. C'mon man.

 

[mijohnst]

I think that they're all the same except with the OEM the upstream has a longer wire so it can reach the connector. I bet GM saved hundreds and hundreds of dollars by using less wire on those downstream O2 units.

 

[OR VietVet]

I think that they're all the same except with the OEM the upstream has a longer wire so it can reach the connector. I bet GM saved hundreds and hundreds of dollars by using less wire on those downstream O2 units.

You can bet they did. Years ago, when the feds got on car manufacturers about meeting fuel mileage, that was when brake drums and rotors got thinner-to save weight, more plastic was used, the vehicles became more aerodynamic.......you get the jist. The same goes for saving money on each little thing to drive profits up.

 

[George B]

You can bet they did. Years ago, when the feds got on car manufacturers about meeting fuel mileage, that was when brake drums and rotors got thinner-to save weight, more plastic was used, the vehicles became more aerodynamic.......you get the jist. The same goes for saving money on each little thing to drive profits up.

Everyone does it. little things add up.....
https://www.aircraftinteriorsintern...rtedly-save-1987-cutting-limes-16-pieces.html

 

[Fless]

I think that they're all the same except with the OEM the upstream has a longer wire so it can reach the connector. I bet GM saved hundreds and hundreds of dollars by using less wire on those downstream O2 units.

I'd think they would save more money by eliminating a second style of O2 sensor -- more quantities of one style and only one to document, stock, market, sell, etc. But whadda I know?

 

[wjburken]

I'd think they would save more money by eliminating a second style of O2 sensor -- more quantities of one style and only one to document, stock, market, sell, etc. But whadda I know?

20 years ago I went to some training for a design and we were to bring an actual design problem we were trying to solve. One gal was from GM and her problem was to find a way to take 2 cents out of some common component like a muffler hanger or something. I asked how it was cost effective to spend the time to save that little of an amount and she said the volume that they use them, it would end up saving almost $500K in a just a year.

This is also why some building codes are starting to require outlets to be 6ft apart instead of 8ft because lamp makers were making the cords shorter to save money.

 

[HiHoeSilver]

20 years ago I went to some training for a design and we were to bring an actual design problem we were trying to solve. One gal was from GM and her problem was to find a way to take 2 cents out of some common component like a muffler hanger or something. I asked how it was cost effective to spend the time to save that little of an amount and she said the volume that they use them, it would end up saving almost $500K in a just a year.

This is also why some building codes are starting to require outlets to be 6ft apart instead of 8ft because lamp makers were making the cords shorter to save money.

Around here (Chicago IBEW mecca), building codes require (and have for decades) receptacles every 12 feet, as to accommodate a 6' lamp cord in either direction.

I have never heard of 8 or 6'. Unless it's a countertop. Then it's 4' (and within 2' of the end), as most appliance cords are 3'.