Has any one else had thier car have the TB opened when coming to a stop? it started a few weeks ago (happened alot) when I was comin up to a light the car held the rpms up to about 1500ish an held their for like 5 or 6 seconds. the next time it happened I gave it a lil gas an the idle came back down...any1 else experinse this?

 

i get it when going into my alley and thats the only spot it spikes to 1800ish and won't come down unless i slow right down to near stop

 

it's a drive by wire setup on the TB, sounds like the computer is wigging out. Have the dealership look at it. You might need a re-flash or a replacement TB or ECU.

If it was drive by cable then your accelerator would be to blame most likely.

 

Yea my firebird did this to me worse but it had a carb an it was stuck WOT very scary when i was already doin 80+mph lol... but i didnt think my balt would do this i think it started just after i hit 5k miles hmmm...

 

How many miles? Could be carbon built up in the TB. If not then you need to take it to the dealer.

 

I think iam up to 6200ish. carbon build up in TB?!? I thought this only happened when u burn oil an it builds around the exahust valve an stuff

 

Nope. Carbon builds up on the inside of the TB. Pull the piece that goes on the top of the TB and look inside and see if its all black,it should be gold.

 

happens to me ALL the time.

how would you clean out your TB?

 

I think iam up to 6200ish. carbon build up in TB?!? I thought this only happened when u burn oil an it builds around the exahust valve an stuff

Really? hmmm ok thx ppl

 

With Throttle Body cleaner spray. MAKE SURE It says its safe for clear coated throttle bodies!!!!!!!!! If not you WILL destroy yours!!!!!!

If you don't know 110% DO NOT USE IT!!!!!!!!

 

or just pull it off and give a nice shine with a cloth and some elbow grease. thats what i did. now its spick and span.

 

thx!

 

Or ill just have my dad give it alil porting LOL but thx jack ill look at that when i get home (only 3 days! YaY)

 

I have a 2.4 Manual and that happens to me all the time. it'll just kinda idle at 1500 right until I'm basically stopped and then it'll just drop to normal. I've pretty much gotten used to it and just let it be. But if cleaning up the throttle body a little is all it take then i may have to look into that.

 

Wow i didnt know others had the same problem lol...

 

If you arent "TUNED" which i assume you arent .....Ill bet you its your Maf sensor, its pobably dirty as hell, my buddy had that problem on his coby and that did the trick .... pick up some cleaner from autozone unscrew the maf and gently clean it

 

I dont see how it can be dirty but ill look at it on friday when my new intake gets to my house

 

MAF SENSORS are the most sensitive things...second only 2 girls lmao

you would be suprised we couldnt even see the dust on my friends coby we used that keyboard cleaner "air ****" and problem solved

 

Haha yea ill give it a cleanin proly be 4 the best anyways lol thx

Haha idk ill give it try

 

Happend to me. I went to the local GM shop and had a reflash. Hasnt done it since. Dont know if its the same with the 2.4s but.....

 

i had mine reflashed @ 5000k miles because of this.

No problems since.

 

i have the same probvlem with my car, does any body has a how to for cleaning the TB?

 

If your MAF was malfunctioning it would go into limp home mode, the check engine light comes on, and if it is an auto it shifts hard as crap! If it is sticking then your having a issue with communication, whether the throttle position sensor is not communicating with the computer or crank sensor is off or the valve solenoids are faulty. You can clean the Maf with Maf sensor cleaner from NAPA, and the throttle body with the same or throttle cleaner. No how to, just take the intake off and spray away, but it back together, start engine. It will not solve your issue though. Been down this road. Mine was a bad exhaust cam solenoid, then had issue with the intake boot coming off and I was just pulling in straight air (so no air through the maf, and instant limp home mode) , take it to the dealer yo.....

 

To keep this thread alive:
Anyone know of a TSB or recall on this? This is a HUGE deal. I had it happen to me several times, and I was lucky it was uphill or flat. If you are going downhill and trying to stop then the engine decides to open the throttle blades, it will be much more dangerous. This is serious ****. I'm taking mine in next week.
By the way, cleaning throttle body or MAF is nice but has nothing to do with this issue. The only way the car will accel is to open the throttle, and dirt won't open it once it has closed.
2007 2.4 slushbox SS.

 

Hmm I had one problem, after installing the GM Ipod hookup thingy I floored it on a onramp, I hit 40 and my car sputtered, and it scared the hell out of me, and now you mention this, and I just got home from a trip and my car did act a tad funny driving to school tonight, I think I did something, or my car is acting weird, thank god for warrentys.