Questions & Answers for: why car idle down

...car hitting the gas, then letting off, quickly. Above idle speed, and rujnning down the road, it seems fine. Have looked for a vacuum leak, but didn't find anything. Its could be a few things. Most ...

...car was in park it started to slightly idle up and down you can hear it when it idles up and when it it idles down it shutters and acts like it wants to bog down but never cuts off. I just replaced ...

...car tap gas peddle once then start car the car should idle high then settle down in a minute or two. I think whats happening with yours is that it`s sticking part way open. hope this helped

...the idle keeps going up and down and up and down. Bad O2 Sensor? Thanks. usually idle that goes up and down is cause by a bad "idle control valve" located near the throttle body. Needs to be

idle back down until i stop.Then when i shut it off when it is warm and start it back up it idles high again and won't idle back down until i stop. this could be due to a miss adjusted fast idle screw

...idle on car? http://schematicsdiagram.blogspot.com/2011/12/erratic-idle-on-car.html ---------- Low idle when cold out side? ...

...vacuum hoses, timing all seems ok. when adjusting tps it will idle too hi and stop going up and down, turning the idle screw don't change anything. can be the automatic idle check that its ...

...down , set and idle for a while it starts idling up and down.any idea's? I have a 1990 S-15 with 4.3 motor idles high when you start, idles down , set and idle for a while it starts idling up and ...

Car Idles up and down when warmed up I start it when cold and it idles fine til it gets warmed up and then, when it's warm it idles up and down from a slightly fast idle back to a normal idle. Also if

...idle air control (IAC) valve by turning the car on, putting the car into park, pressing the brake down, then pushing the gas pedal down, counting down about 5 seconds, turning the car off, waiting 10 ...