Simple Throttle Body Clean on Chevy Silverado or GMC Sierra 

Awesome! Happy to hear about the successful DIY. 👍🙂

Awesome! Glad it helped you.

Nice. Took a whole can of cleaner 😂 must be so much better now! 👍

You didnt need a odb2 or fancy computer for a relearn?

@@eldianmolina4920 Thankfully, no. My guess is if the throttle body is very dirty, the computer learns that the throttle is more open for a normal idle because it can't fully close anymore with all the buildup. Once you clean it or replace it and there is a big difference between where the idle sat when it was dirty and when it's clean, I believe it will then idle too high and will need a relearn. Just my opinion...

@@eldianmolina4920 Nope just did the run for 3 minutes, off for 1 minute, run for 3 minutes, off for 1 minute, run for 3 minutes deal and my idle was good to go.

Hello. Mine idles high now and cheap code reader say “idle air controller higher than expected” do I need to take it somewhere to get idle reset ? Starts off over 1000 when stopping or starting, then eventually goes down, but you can feel it pressing brakes . Thanks.

Glad the video was helpful. Thanks for the feedback about the sound. I'll keep an eye out for the volume level in the next videos. Appreciate that. :)

Right on. Glad to hear it. Good job! 👍

My pleasure. Hope it helped you!

Sweet! A little care and maintenance and makes you feel good that it runs better! 👍

I have a 2010 that I'm looking to do! Did you have to do the re-learn process as well??

@@montedowd2502 Yes I did that as well, although after the first one it was pretty well back to normal. The aecond time may have been a little higher but it definitely was goos after the three times .

You are very welcome. Thanks for watching!

Haha I sometimes forget to take it off but depends on the work I’m doing too lol. This one isn’t messy and no major work so low risk to wreck it I thankfully. 😁

No problem!

Thank you, and I'm happy that it was helpful! 👍

Remember to take it easy on the butterfly valve (don’t be rough with it), spray throttle bottle cleaner on a rag and wipe gently rather than spray directly into the throttle body. Best of luck!

No issues at all for me. It just worked normally after the cleaning.

Thanks and hope it was helpful!

I changed out the two rear O2 sensors because they threw engine codes. I have a video on that too those are the tougher ones 😀

Funny you comment that, I’ve been getting the power train module code thrown and she’s idling like shit lately. Sometimes with bad gas it’ll throw “engine idle power reduced” and I’m currently about to clean throttle body. I’m at my wits end with my vehicle. And I’m afraid when I sell it, I won’t get enough from it. But I also don’t want to spend more money on fixing it ya know. Any advice?

Not often. I believe the general guideline is 75,000 miles or 100,000km-ish. I tend to buy used vehicles and work on used vehicles so if it’s been over 100,000km and I don’t think it’s been done I tend to pull the throttle body and see if I feel it needs a cleaning.

Yes.

I hope so. I have an 08 that is giving me a TPS code. Going to try this first.

​@@Danman1972ii9ko😊 9:51 l❤Q😊72

Thank you for adding that. I understand that to be the case exactly as you described also! 👍

Would some place like AutoZone, Advance Auto, or O’Reilly’s have this high dollar scan tool? About to do this procedure this week (slight vibration/shake happening at idle) and, with my luck, my computer won’t re-learn the idle properly. Wanna be prepared, just in case. 2007 Tahoe, 5.3 4x4. Figured I’d start with TB clean before going into changing out spark plugs to address. 🤷🏻‍♂️

@@m1cajah I bought a Launch CRP123x from Amazon and it says does it but I've never had to test it. Check out a few different videos on throttle relearn scan tool. I'm very curious to know what you use/try. Please let me know! 🙏

That idle reset isn't correct Just sayin.. No hatred bubz.

@@henrybourgeoisjr485 no hatred here. 🙂 But, if you would like to add info to help others understand, rather than just say it isn't correct, that would be appreciated. Otherwise, the comment isn't really helping the community... Just saying..

I don't think the cleaning will cause a noise unless you broke something or dropped something into the throttle body...

If you want to know the exact, appropriate idle, you may need to check with GM. But, if it's helpful, 500 rpm is pretty normal once the engine is warmed up. That's basically what my 06 used to be at and it's what my 2013 runs at today.

Drive it , give it some time it should go back to normal once it resets itself

Hey brother, I've heard of it but have not had to resolve that personally. Assuming things like "you were careful with the TB cleaning and didn't damage the TB", "the crud isn't just moved around in the TB causing the butterfly to get a bit stuck or sticking", "the MAF is not dirty", "it's not a vacuum leak issue", etc., I would check simple things first, like detach/reattach connections to make sure they are secure, follow my previous steps to make sure I didn't make an error or disconnect something unintentionally and forget to reconnect it (a hose, a connector, a gasket, etc.), and so forth. Then, from what I've read it sounds like there are a couple of options to consider: 1. Redo the idle relearn for your truck's year/model. Something along the 3min/1min/3min approach for however many times applicable (probably 3 cycles). Then drive it around for fifteen minutes or so, then turn it off for 1min. Start it up and drive it around again and then off again for 1min and see how it responds. I'd caution that if the idle is so high that you can't put it in gear without a crunch, that's probably not a good thing to do! 2. Use a scan tool that can perform an idle relearn or take it (if possible) to a service shop or dealership that can perform that for you. If in doubt, and the simple things have all been ruled out, it's never a bad idea to take it to a professional for a diagnosis. If you're a backyard mechanic like me, I keep inspecting and retracing and cleaning and researching until I figure it out! Good luck, bro!

@@lmsdiy thanks for the reply boss , yes so i mean i can say i cautiously did it not just all rough i took it off carefully and cleaned it with throttle body cleaner and rags until i took most off i also used a tooth brush to get on the plate corners it did move around a bit the butterfly so that i can get in between it i disconnected battery before too and left it off after for some time as well so im not sure why now it does that

@@lmsdiy thank you for the reply bro and yes i can say i cautiously cleaned it disconnectedmy battery before , i used throttle body cleaner and rags or those blue mechanic towels mostly , i used a toothbrush a bit only like on the plate corners , the butterfly did have to move a bit because i had to in between my throttle body was actually pretty dirty so i got it as clean as i could and then waited after i finished to connnect the battery like i saw and stilli turned it on and it just started doing the surging and it staying accelerated i just dont know what it could be though i might just have to take it to a mechanic

@@rickygarcia9327 I'm doing more reading... It's really odd that it seems so random for different trucks when a high idle does and doesn't happen after a cleaning. Really weird..

@@lmsdiy i know right , supposedly i saw that you have to drive some miles like that until it relearns the idle or something but im not to sure because it just does the surging like after 2 minutes , i want to do a throttle body relearn at a mechanic shop but they told me they didn’t know if that would actually fix it or not and i don’t want to waste that money of it won’t i just want to fix what it is

Unfortunately, I couldn't tell you without a proper/full diagnosis on your truck. Sorry :(

Most likely your throttle sensor

@@clint5871damn thanks both you guys

It depends why the check engine light is on, so I couldn’t tell you without properly diagnosing first… sorry!

You'll only see and clean one side of it (the clean side). I think it's kind of like only brushing the outside of your teeth. :)

Yes and no. If this method works then no. If it doesn’t then yes. 😬

I haven’t experienced that myself but from what I’ve read, it seems to happen if there is something wrong with the butterfly valve or sometimes when peeps clean it too aggressively. The only thing I know would be to warm up the engine and do the idle relearn again and again. Aside from that (again from what I’ve read not experienced myself) it’s replacing the throttle body and/or getting a professional to diagnose further. 😕

The only thing I can suggest to do on your own is probably to redo the idle relearn. Is it running at 2000rpm after the engine is warmed up?

Mine does the same thing. From what I understand on this era of Chevy is the only thing that can be done is have someone with a scanner do an idle relearn. Bad part is trying to get the truck to someone, means shifting into drive at 2000 rpm. This was actually a dumb move to do this on my part. The video needs to be updated to share this additional info.

@eddie-vd7bc What did you end up doing? Is it resolved?

@@jeffsmith5424 hey sorry to hear it wasn’t a smooth cleaning for you. I never had that result myself so can’t really put it in the video, but I did add a note to the description to warn others about the high idle possibility.

@@lmsdiymy idle is fine after cleaning. Until I press on the accelerator pedal. After pressing any at all it revs to 2,000rpm and will not lower unless I just cut off the ignition, then restart, idle is fine again until I press the accelerator….. any thoughts?

this should fix it. its usually the cause of it. but if cleaning the TB doesnt fix it for ya, you might have some sort of fuel system problem then, but thats a rare event

lol thanks. I don’t generally use the latex gloves unless it’s fuel cause I hate the smell of gasoline on me!

​@@lmsdiylike a man! Whats cancer?

Haha, fair enough to ask. You're right - safety first! I never wear ring or watch at the shop or for any "real" automotive work, but this is such a simple and easy job that it didn't warrant removing ring or watch!

Definitely an easier task than changing your spark plugs