Well, theres only 2 things that I can think of, thats why Im here, so see if theres another reason that this could be caused. When i apply the brakes, my idle goes from 1k to around 700 or 800.


I figured a vaccume leak somewhere in the brakes or a bad alternator?

 

its because of the brake booster. they have power assisted brakes and where do you think that power comes from?

 

check the vac lines to the brake booster.. I think this is normal for the cars though.. your idle is kinda high S/b around 750rpm fully warmed.

 

my car does the same thing... i think its normal.

 

brake booster is bad if the idle raises when the brakes are applied and stays there.

 

And your way off since he just said his idle goes down when brakes are applied....thanx for playing though....

 

oh, well mine doesnt stay there, like when i press the brakes and let off, the idle raises.