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05-15-2021LAST POST
For the last week I noticed only when I'm stopped in traffic and my temp gauge is at least 210 my car drops idle and ramps back up, but sometimes it drops and cuts off and I have to restart. I read about the fuel breather valve but I can have a half tank, quarter tank or full tank it doesn't matter if my temp is around 210 it will do it if not it doesn't. Anyone know what it could be. My car is an 09 with 53000 miles. Any advice is appreciated
Idle control valve?
I was thinking that but I seen people say they were throwing codes and I'm not throwing any
This is happening to me as well. I have zero codes thrown. My idle is fine but sometimes when i'm coasting or coming to a stop, the car will die.
Are you going to take it to a dealership?
Mine does this since it had about 2,000 miles on it. Dealer replaced some idle actuator, something, two or three times. It's been good 20k+ miles since and I still have it on occasion. It, however, only stalled once, but it gets almost to that point quite often. No codes. It is not temperature related though.
Just don't stop, easy fix...or, take that puppy in. Too much speculation, could be a lot of things.
Only in stopped traffic?
My Idle bounces around while stopped at lights, traffic etc.. Never dies out but it drops down to around 500 rpm goes back up to normal idle, I'm hoping its not an issue that gets progressively worse and eventually starts stalling like OP claims.
Do Work wrote
My Idle bounces around while stopped at lights, traffic etc.. Never dies out but it drops down to around 500 rpm goes back up to normal idle, I'm hoping its not an issue that gets progressively worse and eventually starts stalling like OP claims.
It will. Classic idle air control valve symptom. Trust me, you'll want this fixed sooner than later. When you can't keep an idle without your foot on the pedal, you pretty much can't drive the car.
Flying Ace wrote
Only in stopped traffic?
For me yes and when Temps are around 210. I will definitely look to replace this valve asap. Thought I seen something saYing it's 80 dollars from ecs and I'll be doing it mysel
Do Work wrote
My Idle bounces around while stopped at lights, traffic etc.. Never dies out but it drops down to around 500 rpm goes back up to normal idle, I'm hoping its not an issue that gets progressively worse and eventually starts stalling like OP claims.
Exact same symptoms on my car. How difficult is the diy to replace this valve? If it's just $80 I might do it myself if not too complex..
I have the same issue as well. If anyone has already replaced the valves please post a DIY if you have the time.

Thank you!
Thanks Decimation! Will definitely look into this.
Get your fuel purge valve replaced. Fixed it for me.

Did the idle control valve change and it was a waste of money
Rod bearings.
Adenau wrote
Rod bearings.
Doubt it. Hope not at least. Did it happen to you?

Ill look into the fuel purge valve.
jhanksevo wrote
Doubt it. Hope not at least. Did it happen to you?

Ill look into the fuel purge valve.
:smash::smash::smash::smash::smash::smash::smash::smash::smash::smash::smash::smash::smash::smash::smash::smash::smash::smash::smash::smash::smash::smash::smash::smash::smash::smash::smash::smash::smash::smash::smash::smash::smash::smash::smash::smash::smash::smash::smash::smash::smash::smash::smash::smash::smash::smash:
Thank you as well Yay-Z.

It looks like it may be the fuel tank breather valve for me as I've seen the symptoms both after a fuel up and when the tank is nearly empty. Also, I have not seen any idling irregularities while the car is moving which leads me to believe that it isn't the idle control valve.

I did a little searching and found another helpful DIY in case anyone is having the same issues as me:

http://www.m3post.com/forums/showthread.php?t=1273927
jinx1181 wrote
Thank you as well Yay-Z.

It looks like it may be the fuel tank breather valve for me as I've seen the symptoms both after a fuel up and when the tank is nearly empty. Also, I have not seen any idling irregularities while the car is moving which leads me to believe that it isn't the idle control valve.

I did a little searching and found another helpful DIY in case anyone is having the same issues as me:

http://www.m3post.com/forums/showthread.php?t=1273927
Glad to see my diy is helping people out.
Ordered the fuel tank breather valve will be tackling this next weekend I'll let you know if it fixes it