have you found a solution?

 

loose intake manifold bolts! It's sucking to much air so it will throw all kinds of codes. Check your bolts before you start pouring money into parts. Hope this helps

 

hi there! Can you confirm this solved the issue at all? I am having the exact same problem

 

I'm not saying that the steps he took worked, or that I have tested this theory out myself, but 1 of 3 things could have led him to keep from posting his final results after his few attempts fo fix his issue. 1- after replacing the few items that he did, the fluid replacement for his tranny, as well as fluid treatments, it's possible that everything together fixed the issue. 2- replacing the o2 sensors fixed all of his problems and he forgot about the forum, or 3- he washed his hands with it. My malibu is a 2013 LT 2.5L with no auto stop. Pushing 182k miles. The mechanic I took it too said its a High pressure fuel pump that only dealers work on. Problem is, dealers wont work on cars that don't have engine codes. The fact that they wont touch a vehicle that doesn't tell them exactly what's wrong with it baffles me. I'm now on my own to figure out what exactly is wrong with these Malibu's that causes them to run like a $500 junker. I'm going to start backwards with all of the information I've consumed today and all of the suggestions on what it might be. I work a lot so i may not have too much time to post. Frequently, but I promise to keep everyone in the loop and let you know what doesn't work for me, cause if you're like me, you love your car. Stay tuned!

 

I'm having all the same issues with no error codes. I just replaced the ECM and that didn't fix the stalling issue either.

 

Has anyone figured this out? My 2013 Malibu has 100,000 miles on it and has been stalling at stop lights for 2 yrs now. I am a diesel tech and can’t figure it out. 2 dealership visits and 2 independent shops can’t figure it out. This is what I know so far. Sounds like chain slack when starting. Only stalls when I am at a stop, in gear, and have my foot on the brake. It will have about 800rpms then drop to 600 and stall. If I take my foot off the brake pedal, rpms go back to 800 and is fine. I found after several hrs of checking live data that my cam phasers are dropping out when I push in the brake pedal at a stop and in gear. I also found that the vvt solenoids, both intake and exhaust, are also dropping out. Or at least the command for the vvt solenoids are dropping out. What can cause both vvt solenoids to drop out under these conditions? MAF,MAP,CMP,CKP, TPS look good on the scanner. I have no codes for this.

 

I have the same issue . I changed my throttle, timing chain, checked intake bolts, air filter, PCV valves. Vvt solenoids, vaccum pump, both batteries, map sensor, maf sensor. Camshaft and crankshaft sensors. Oil change and transmission oil change. And spark plugs And still stalls at idle . It drives fine fine at first but seems to start stalling at idle at operating temperatures. Don’t know what it is. No check engine light

 

sounds like your torque converter is staying engaged. They make some pour in stuff that fixes this.

 

I’m having the same problems only mine is a 2015 Chevy impala has anyone resolved this issue? No codes !!! Had some early on an o2 sensor code and a fuel trim code but nothing since I may try cleaning or replacing o2 sensor Dealership said it was Torque converter they also said it was the auxiliary battery which I replaced and cam solenoids which they also replaced before I waste a bunch of money replacing this torque converter can someon please let me know if they resolved this issue and what they did

 

I realize this is an old thread but I seem to have fixed this problem with my 2013 Malibu 2.5L by accident.
I left the coolant fill cap off one day after changing the oil without knowing. After a trip down the road it overheated and I saw that the coolant had completely been lost.
The only coolant I could find was the Prestone yellow instead of the Dexcool. I put a gallon of the yellow in and starting driving it.
It now runs slightly cooler then before with the gauge reading slightly below the 3/8 mark.
Since then it has never stalled once when hot. Did it constantly with the Dexcool.
Might be worth a try.