hi I just had my throttle body clean by a local mechanic not really a hummer expert.
I was just wondering is there something I can use to maybe further clean it.
not saying he didn't know what he was doing. the H3 was running rough way it came to stopping not a smooth stop, idle would go up and down even cut off a few times. it has 75000 miles on it 2007.

 

How is it running now? What exactly did he do to clean the throttle body? If he didn't remove it and clean it, it's not really clean. If the issues cleared up you shouldn't worry about it until it's time to be cleaned again. At that time, figure out how to do it yourself then you know it's done correctly.

 

that's a good question I don't know didn't even think to ask. what casues that is there a gas tank additive you can add to clean it. it's running ok my stopping it smooth now. the dealer wanted to change all the fluids maybe l'll take it there and have them clean?

 

Don't go to the dealership for a throttle body cleaning.. Unless you like wasting money. For 9 dollars you can clean your throttle body yourself, in under 30 minutes. There's a write up on how to do it, I followed the guide and it's super easy.

 

You pretty much just need a 10mm socket and throttle body cleaner to get the job done.

 

the write up is it here do you have a link?
thanks

 

Dang.. you didn't even try looking. That lack of motivation isn't going to get you very far. If you search "how to clean throttle body hummer h3" the very first link is the one i'm spoon feeding you:

H3 Throttle body and MAF sensor cleaning

Hopefully I don't get reemed for posting that url...

 

https://www.google.com/search?redir_...=1423581972458

 

i took apart and cleaned throttle body, next day shooting p0420 code ?¿??

 

i just took my throttle body apart and cleaned it, next day p0420 code for bad cat popped up. errrrrrr