Throttle body cleaning for 2014 Tahoe LT

[iboughtatahoe23]

It'll get diluted by the 87. Just run the tank down as normal and then fill up with 93. If you are wanting to clean the injectors, use E85 instead. Run 5 or 6 tanks in a row before switching to something else.

You think switching in between them is bad in flex fuel

 

[iboughtatahoe23]

Was also wondering if it’s a bad idea to cheap out on o2 sensors. Not sure if I should make separate threads.

 

[Doubeleive]

Was also wondering if it’s a bad idea to cheap out on o2 sensors. Not sure if I should make separate threads.

I have used aftermarket 02 sensors in the past wasn't ever any issue. when I did all 4 of mine (oem) at 100k it cost me $180 with the socket tool, taxes and shipping

 

[iboughtatahoe23]

I have used aftermarket 02 sensors in the past wasn't ever any issue. when I did all 4 of mine (oem) at 100k it cost me $180 with the socket tool, taxes and shipping

Looks like you can just use a wrench. And damn that’s expensive I think the walker after market ones are 25 for both sets on Rockauto

 

[swathdiver]

Was also wondering if it’s a bad idea to cheap out on o2 sensors. Not sure if I should make separate threads.

I've seen on this and other forums people having alcohol content percentage issues from using aftermarket sensors and not changing the originals after 100K miles. Very few don't experience that issue but many on these forums do.

Buy once, cry once. The aftermarket sensors don't play well with the ECM, it interprets the data they send incorrectly which throws off the calculations and results in drivability issues.

 

[Doubeleive]

Looks like you can just use a wrench. And damn that’s expensive I think the walker after market ones are 25 for both sets on Rockauto

Not as easy as it looks particularly the driver's side before the cat

 

[donjetman]

Not as easy as it looks particularly the driver's side before the cat

Yeah, the socket is needed

 

[Fubar0715]

I did all 4 of mine a year or two ago...Went all OE stuff from Rock Auto and grabbed a socket from Harbor Freight. The O2 sensors run 40ish for up/down stream so easy to see how @Doubeleive got to $180 all in. IMO, the $10 savings was not worth having to re-do the work - call it insurance. Maybe it works fine but for me, I was not willing to chance it.

 

[Fubar0715]

Was also wondering if it’s a bad idea to cheap out on o2 sensors. Not sure if I should make separate threads.

BTW, where are you located? I see the snow in the pics but hell, with all the crazy weather in the world, that could be anywhere! If you are anywhere near me, I would be happy to loan you the socket but they are not expensive..https://www.harborfreight.com/78-in-oxygen-sensor-socket-63702.html

Actually, after looking up the part, that is less than the gas to drive anymore than 40 miles.

 

[iboughtatahoe23]

BTW, where are you located? I see the snow in the pics but hell, with all the crazy weather in the world, that could be anywhere! If you are anywhere near me, I would be happy to loan you the socket but they are not expensive..https://www.harborfreight.com/78-in-oxygen-sensor-socket-63702.html

Actually, after looking up the part, that is less than the gas to drive anymore than 40 miles.

O2 sensors are $80 plus tax up and downstream. Why is he paying $180?!

 

[Doubeleive]

O2 sensors are $80 plus tax up and downstream. Why is he paying $180?!

minie is the 6.2l so the sensor part could be different but...
2X upstream ac delco 2134229
2x downstream ac delco 2133866
1x lisle 12100 7/8" 02 socket
tax
shipping
5% off code (rockauto)
essentially $180
that was 60k miles ago, no codes, 40k miles more and time to do it again, less the socket cost. I actually probably have 2 or 3 of those sockets somewhere already lol

 

[iboughtatahoe23]

minie is the 6.2l so the sensor part could be different but...
2X upstream ac delco 2134229
2x downstream ac delco 2133866
1x lisle 12100 7/8" 02 socket
tax
shipping
5% off code (rockauto)
essentially $180
that was 60k miles ago, no codes, 40k miles more and time to do it again, less the socket cost. I actually probably have 2 or 3 of those sockets somewhere already lol

I see, I have the 5.3 so maybe a bit cheaper? I figured most GM light trucks would use same sensors. Maybe not.

You guys are pretty helpful on here, better and more responsive than Reddit. Thanks y’all.

 

[Geotrash]

I see, I have the 5.3 so maybe a bit cheaper? I figured most GM light trucks would use same sensors. Maybe not.

You guys are pretty helpful on here, better and more responsive than Reddit. Thanks y’all.

It's because the mods don't tolerate trolls or politics. Keeps it civil.

 

[Doubeleive]

I see, I have the 5.3 so maybe a bit cheaper? I figured most GM light trucks would use same sensors. Maybe not.

You guys are pretty helpful on here, better and more responsive than Reddit. Thanks y’all.

I would check rockauto often they are the same sensors if they are rockauto has a pretty good reference chart, you have to be careful where you purchase ac delco stuff lots of fake knock offs on the market, it doesn't help that ac delco changes part numbers on the fly and discontinues things at the drop of a hat

 

[Fubar0715]

O2 sensors are $80 plus tax up and downstream. Why is he paying $180?!

There are 4 of them - 2 on each side

 

[iboughtatahoe23]

Does it need to be cleaned? In all my years of vehicle ownership I've never had a throttle body cleaning ever make a difference, more likely to have an exhaust leak, intake leak, or clogging cat maybe

I don’t think it’s clogged. It’s not ever over heating it sits at 900°F max, so it’s burning stuff for sure. Idk about and intake leak. I do have an exhaust leak but it’s not even noticeable unless you really listen for the tick. It’s louder in winter (tick)

I really think it is the throttle body or something similar and related to the throttle. My pedal shouldn’t feel like I’m stepping on a brick especially since it’s electronic.

 

[iboughtatahoe23]

I have cleaned and do clean mine about every 3-5 months for the last 20 years, never had to have one reset or relearned. BUT it can happen, just bad luck I guess
just don't "force" the butterly more than where it stops at, you can use one finger to hold it open and clean it with the other hand.
I also recomend using a couple bottles of injector cleaner every 2-3 months on a regular basis that will help.
if you have not been doing this or have no idea when it was last done, bought it used or whatever then either run fuel injector back to back for a few tank fulls or have a injector service done, some shops use a tool that connects to the fuel rail and runs the cleaner right into the injectors. cost is usually around $80 or so for the service
carbon build up in varying amounts can happen and cause poor idle or response it won't give you any more pony's by cleaning it, it's just maintenance
like already noted a clogged or bad cat can cause loss of mpg, perhaps some performance loss.

I really think it is something with the throttle / gas pedal.

 

[Doubeleive]

I don’t think it’s clogged. It’s not ever over heating it sits at 900°F max, so it’s burning stuff for sure. Idk about and intake leak. I do have an exhaust leak but it’s not even noticeable unless you really listen for the tick. It’s louder in winter (tick)

I really think it is the throttle body or something similar and related to the throttle. My pedal shouldn’t feel like I’m stepping on a brick especially since it’s electronic.

edited, my info was wrong

 

[Doubeleive]

what kind of mpg are you getting?

 

[Dustin Jackson]

@iboughtatahoe23 I don’t know if you know this but the gas pedal and throttle body are not connected in these Tahoes, it’s drive by wire meaning the gas pedal is just a sensor to plugs into a wire. So any sensational feeling the pedal has would be caused by itself