Idle goes up and down while stopped

[DREW840]

Im really hoping to get a little input here before dropping some serious coinage to take my 4Runner to the dealership.

I have a 2006 V8 4x4 Runner and while out driving when I come to a stop the idle jumps up and down. Its to the point where if I didnt have my foot on the brake the car would almost lunge through a red light or stop.

I think I just need to have them adjust the idle off the dealership computer but wanted to see if anyone else ever had this problem or had heard of it.

Thanks

 

[Acidmeld]

Have you done anything to it recently? Battery disconnected? Try cleaning the throttle body and maf first.

 

[DREW840]

I actually replaced the battery about a month ago. Shouldn't the computer have reset it by now?? It runs fine, just the problem when stopped.

What do you recommend I clean it with?? I'm gonna have to do a search for this...

 

[Acidmeld]

Lots of threads about this. You can use any intake/carbon cleaner.

 

[mrpanic7]

I actually replaced the battery about a month ago. Shouldn't the computer have reset it by now?? It runs fine, just the problem when stopped.

What do you recommend I clean it with?? I'm gonna have to do a search for this...

Also you can Google search resetting ECU/Transmission by pulling the fuses for a few minutes

 

[fourwd1]

Too high an idle speed will cause what's referred to as 'brake surge', Search and you'll find more info.