2008 Sebring stalls when cold or damp and temp is below 50 deg f.
Engine is up to normal operating temp.
The dealer did the tsb 21-015-08 flash for pcm.
Now the car does not stall but sputters real bad on takeoff (does not do it all the time)
push the gas peddel and sputters then takes off for about 5 secs.
After that the car runs and shifts fine.

Milage is 32,511
2.4L
New plugs at 27,000 miles Ngk (dealer)
No codes in the computer.

When warm outside above 70 deg f and the engine temp up to normal operating temp car runs fine (no stalling)
When we bought the car with 11,000 miles tok a trip up north last yr when it was cold stalled twice then.
Same thing no codes in the computer and no check engine light.
Being down in Fl has been cold off and on the last few weeks, temps below 50 and damp and the stalling started again.
Been doing some readin could it be the map sensor ?
Any ideas, Dealer is having a hard time trying to fix the issue?

 

let them keep trying its there baby until 36k with the scanners they should be able to see whats going on

 

If they haven't found it by now,they're going to have to do a data recording and get STAR involved or this nonsense will go on indefinately.

 

If you are talking about the computer in the car to where you press a button to record the data, that has been done, that is why the tsb 21-015-08.
Since the tsb the car will just not go when pressing the gas pedel from a stop or slowing down to make a turn. It Has done it on the Techs and they have no idea on how to fix it, but
We have noticed since a few days has passed from the tsb update and the temps down in the low 50's the car has not done it.
After this update does the pcm have a learning time ?
The test will be the next few nights with the temps down in the 30's.
Thanks for the info.

 

So who did they say analized the data from the recording? Some of that stuff on the data stream is engineering jargan and they won't know what they are looking at. Yeah there is some learning that is done after a reboot but it won't cause driveability issues that pronounced...or at all. TSBs are something that are done PRIOR to a data recording or contacting tech support...not after.

 

The data recording was done before the tsb.
They did check a lot of things. Just weird that no Mil light or and codes at all.
Today, with it being cold 35 deg f and damp car has run like a champ.
Coming home from work (work overnights) and the same area where it does stall ran fine
Has been about 3 days since the tsb and close to 20 starts or on off cycles.
Gas milage is fine 24 to 26 in the city and about 30 to 33 on the highway (70 to 75 mph)


I mean for us flatlanders aka Floridians it is cold to cold lol.
Thanks for the help and info.

 

It did the hesitation 4 times today.
Engine at normal operating temp and air temp about 48 to 50 deg and high humidity.
What it does is when you press on the gas it goes for a sec then acts like it is going to stall then picks up.
When it did it today the first time, I was crossing traffic and almost got hit.

When it is cold outside below 50 deg f the idle is around 550.
When it gets over 65 the idle speed is 700 to 750 rpm.
In the summer with themps over 90 deg the rpm is around 850 to 900.
With these idle speeds the ac is off.

Took it to the dealer, no codes
and by then the air temp was up about 65 so it did not do it on them.
Bassically tried to tell me this cause it takes a long time to learn driving habbits after the pcm update.


After the air temp go to 65 deg in the same day the car runs fine.
Fuel tank is at 3/4 and just at the end of the rope with this problem.
does this no matter how much fuel is in the tank.

 

Have you had them program the transmission again? I remember on the 01 sebring we had something like that and just had to get them to reprogram the tranny.

 

The tsb 21-015-08 is for
Flash: Transmission Engagement, Performance Improvements.
It did stop the stalling but the 2 or 3 second hesitation when pressing the gas when cold (air temp cold below 50 deg f. and engine temp is at normal operating temp) is still there.
The engine temp is about 1/8 below the half way mark on the gauge.
It is like it goes for half a second then pauses then goes 2 or 3 seconds later.
The delay with the fly by wire throttle I am used to. This hesitation is not normal like they keep telling me. If so then why does not happen when it is warm outside?

 

I'd focus on the throttle body. You may have heavy deposits in there. Maybe an ETC relearn or just put on a new one. Then there are the data readings on the APP sensors that need to be looked at also. These two things work hand in hand.