JayBeStangs94

Lately my mustang has been idling at about 750 rpm. Sometimes when my speed is decreasing and I come to a full stop, the idle will go to about 500 then shoot back up to 750. It feels like the engine's about to cut out. Anyone else have a similar problem, or am I just being paranoid?
Thanks

kon5t

Mine idles around 730-780 when warm, depending if the air con is on or not, and 1100 when cold.

Nuke

Clean your TB.

MustangFirstCar

Mine starts at about 1500 and then once it starts warming up, it gets back to 700. Then, every one in a while, it spikes to 1000 for a second or 2.

JayBeStangs94

Whats the best way to clean it? Just with a rag and what not?

Nvm, i looked at other forums and found that crc tb cleaner would be best. Thanks for the help.

onederful100

i clean out my TB and air filter a couple times/year.
it runs noticeable smoother each time.

JayBeStangs94

Thats what I was planning on doing today, so glad we have these mustangforums haha

Jokeurmnd

700-750 sounds about right. I had my car drop ideal to what seemed it was going to die. Like people have said clean your TB and/or filter, worked for me.

X07TorchStangX

ya same the weather defiantly is going to make a difference in how the car idles obviously its going to idle higher in colder weather and less in warm weather but it sounds right to me. if your still concerned about it you can always clean the throttle body. always got to be careful when cleaning it though. I suppose even the maf if you choose too but more or less cleaning the throttle body will help

pdonket

Mine idles at around 550/600, sounds kinda low but I haven't had any problems with the car almost dying so I can't complain. For a while I had a rough idle when me and Brenspeed were trying to dial in the tune but now it's all squared away.