I am not a “car guy”. I don’t even change my own oil. If I can do this, almost anyone else can too. You need to remove the throttle body because the gunk behind the butterfly is much worse than can be seen or cleaned without removing it. There are a few extra things I learned (not mentioned here) that I want to describe. Disconnect the battery completely to reset the PCM. Take care in removing the electrical connection on the throttle body. The white clip needs to be removed first. I used the same can of cleaner seen in the video, scrubbed with a toothbrush, and it did a great job. It should take no more than 30 minutes to clean the throttle body and reinstall. When finished, leave the battery disconnected a while longer to make sure the PCM memory is cleared. Reconnect the battery and restart the truck. Let the truck run in idle for 3 minutes so that the PCM relearns the correct idle speed. Turn off the truck and then restart it. Drive it for a while normally at speeds of at least 45 mph. This will also help the PCM with settings. My truck idled terribly before this and even stopped sometimes while driving. Now it runs great. Best $6 I ever spent on my truck. Good luck.
Same here. Cleaned the TB on the truck-as best I could. Did NOT disconnect the battery and when I started it up, it ran rough for a few days. Wished I woulda seen this vid BEFORE. I had a feeling it had to do with the PCM relearning idle speed. Oh well, lesson learned. Good vid!
@@danieltorres5055 the idle was jumping up and down like it was close to dying ,and when I would rev it it would go back down fast and dip below idle .occasionally it would stall out I’ve noticed that my suburban had more power output after I cleaned it ,I’d say it was more smooth and efficient felt like a new truck
Thank you for posting this video. My 2003 Sierra was shutting off when coming to stops, but would always start right up afterwards. This seems to have fixed it. I immediately noticed more power and it runs smoother too.
Seen your comment and immediately went and cleaned mine out! My trucks been shutting off for two weeks and couldn't figure it out. Trucks running great now!
Went through the video step-by-step and everything worked out perfect. I had a low Idle and it fixed that problem. When I pulled the throttle body off and disconnected the coolant lines I realized there was no flow of coolant through the throttle body, completely clogged with dirt and junk. Cleaned it all up and running like a champ.
@@xerxchavez2488 You can use a single new length of hose and bypass throttle body. That is one of multiple performance modifications that was done on our 2006 GMC YUKON DENALI before we bought it in Alaska in 2020.
Make sure to use throttle body specific cleaner, as the metals in your throttle body can easily be damaged by using the wrong chemicals, example: brake clean
so i did this and cleaned everything but now when i start my truck it idles high then drops and then just like starts going up and down on the rmp not like up high and down but just starts idling and the rpm is going like up and down but it doesn’t turn off now , do you know why that might be happening? i disconnected the battery before i did anything too and im not sure why now it’s doing this?
You don't need to remove the throttle body to clean it. Spray the shit out of it and wipe it out. Only use TB cleaner. Not Carb. Let it sit for half an hour before starting it. You'll be good to go.
DO NOT USE CARB CLEANER ON A THROTTLE BODY SYSTEM LIKE THIS!!! It ruins the seals, and can leak in to the throttle control (TPS), and require a TB rebuild/replacement within 10-15K miles, and kill the TPS in the same timeframe.
Had a 2003 sierra 5.3 liter. Problem. Every time i came to a stop in gear the truck would stall, it would sit in neutral or park and idle all day as soon as a put it in gear it would stall.....Solution: This video. Thank you so much saved me a lot of headaches. posted: Jan/03/2023
Glad this exists. 👍 Just having "reduced engine power" issues which according to everything I've found so far are typically accelerator or throttle body related so looking foeward to getting in there and seeing if it's a dirty body.
-- Running around watching every vid I can on this. Thank you. Thumbs up. Think in my circumstance it's possible to leave it on. Computer/engine won't like it for a bit, but save me some trouble.
only thing, never ever push the plate on electic controlled TB's you end up messing up the timing response to the TB computer setting. turn key to on position and have someone press the accelerator to open it. then clean it.
According to a comment ontop you should disconnect the battery before then after putting it back start up the engine and let it run for 3 minutes then turn it off and restart your vehicle once more and drive it around at speeds around 45mph to rest the PCM
Why? WHy? WHY!!!??? the hell does there always have to be background music to keep one from hearing what is being said! WHY!?!?!?!?!? Is background NOISE a mandatory RU-vid edict!??? Do you HAVE to add that damnable background music before you can post a video?!?!
I moved the butterfly cover when cleaning with the battery unplugged and my truck is running like shit does any body know how to calibrate it or do I have to buy a new one know
I need some help and advice I had some bad gas in my 2004 Chevy Silverado 1500 I change spark plugs spark plug wires drop the tank cleaned all the gas up blew up all the lines put everything back up good gas but does not want to start if I add starting fluid it will start up and turn off what should I do
Im not the poster. But i have the exact truck. Mine was so bad a few years ago that I was stalling anytime i let off the gas. High RPMs at start up is another indication. Thats why im cleaning mine now. I only clicked this video because I thought it was a short cut to see if i could just clean the front. But those are a few signs that its time to clean it
Did you leave it that way? A single new length of hose to bypass the throttle body is one of multiple performance modifications that was done on our 2006 GMC YUKON DENALI before we bought it in Alaska in 2020. I've read that bypass can allow ice buildup in the TB in cold weather.
I have an 05 gmc sierra 5.3 and everytime i turn it on it idles good but as soon as i drive a bit and it warms up when i come to a stop it just turns off , then i can just turn it right back on and it will idle good again and then i just press the gas and it’s good , but every time i let the gas go or come to a stop it just shuts off and i have to turn it on again , can this be the reason that is happening to my truck ?
@@AntonioMartinez-gg5ru On real cold mornings the check engine light would turn on and it would say "reduced engine power". After cleaning the throttle body and the mass flow sensor " it didn't happen this morning. It took me about a half hour and you can buy the sprays required at walmart in a combo pack for 8$ Good luck!
Man man man my truck has been shutting off on me. Ive changed the fuel pump, spark plugs and wires, fuel filter and it was still shutting off now im about to do this hopefully she pers like a kitten
so my trucks turns on and everything but when i take it out for a spin it suddenly turns off what could this be i installed an intake and a new airflow sensor since the airflow sensor was bad already and i asked a guy and he said that my throttle body could be dirty he wasn’t sure tho when it turns off i can turn it back on and it will go but them it turns off again while im driving what could this be ??
I had followed this tutorial and after I finished my truck went haywire kept redlining I couldn’t even do the throttle body relearn had to get it reprogrammed. Went from a quick $10 project to a $160 project lol
I think 07 and up you have to disconnect the battery first but if not yes it will Rev high but all you got to do is hit the highway and it will relearn on its on
Never use carb cleaners on throttle bodies..u never push on flap of.the throttle body.there are gears in the throttle position sensor and u will run the chance of damaging it..turn key to on position. Use a stick and depress throttle to the floor. Now butterfly is open and u can clean throttle body with rag and cleaner..spray on rag and wipe down..u can spray minor amounts in throttle body,butt know vechile is going to start hard and run rough for 10 seconds or so, until the cleaner is burned up..just saying there are much better how to videos on line for this task..
It is an antifreeze passthrough to warm the throttle body in cold weather. I've read that if it is blocked or bypassed, that in cold weather the throttle body can get ice buildup which can prevent the butterfly valve from fully closing. You can use a single new length of hose and bypass throttle body. That is one of multiple performance modifications that was done on our 2006 GMC YUKON DENALI before we bought it in Alaska in 2020.
Did this with my 05 Nissan Altima. And these steps I exactly did. And once I hook everything back up my throttle body just kept Erving and didn’t want to stop. So had to buy a new one
That electrical clip that you removed, is the connected to the throttle position sensor or the idle air controller? Or is it both? I can’t seem to find the idle air controller
