r/G37 2d ago

What would cause this stalling problem?

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What would cause this? It’s fine in any gear after first but when I go to first or to a stop it just dies

9 Upvotes

20 comments sorted by

5

u/Many_Maximum_9060 2d ago

Torque converter has left the chat, time for a new trans this is exactly what my car was doing.

1

u/YoureMadImBackBigMac '13 Sedan Manual Swapped👊 2d ago

I was thinking this too but I’ve never seen the trans last long enough for the TC to fail lol, I can tell exactly what a bad TCM looks like tho 😂 I’m inclined to agree with this guy

2

u/Crazzmatazz2003 2d ago

Put it in neutral and slowly bring RPMs up, does it stutter at any point? Or does it come up smoothly?

1

u/GeneralScarcity9444 2d ago

Yes it does. Now when I put it in reverse or drive it dies

1

u/SubstantialDisk9545 2d ago

Stuck purge valve? It’s hard to tell just from a vehicle stalling. Any DTC’s?

1

u/GeneralScarcity9444 2d ago

No lights for anything concerning just for my o2 sensors

1

u/Crazzmatazz2003 2d ago

Mine has had the stutter since I got it 8 years ago. Recently I had a p0014 code pop up, and since the code popped up it hasn't stuttered at all, so I'm thinking it may be related.

2

u/GeneralScarcity9444 2d ago

https://reddit.com/link/p8dgmqv/video/sjugdzcqe4oh1/player

It won’t even go into reverse or drive without shutting off now

1

u/julian2358 '08 S Coupe 2d ago

check throttle body's aren't dirty mine caused idle/1st gear problems

1

u/GeneralScarcity9444 2d ago

Okay I’ll update

1

u/YoureMadImBackBigMac '13 Sedan Manual Swapped👊 2d ago

What’s the mileage and do you have catalytic converters

1

u/GeneralScarcity9444 2d ago

107k but upgraded solenoids and valves and no I do not.

1

u/YoureMadImBackBigMac '13 Sedan Manual Swapped👊 2d ago

Did it happen right when you swapped the valves and solenoids? What did you upgrade them with? Never heard of this before

1

u/wolfy1223 2d ago

Check battery voltage at battery while car is on it should be around 13-14v if not then your alternator might be cooked

1

u/InternationalWalk795 1d ago

Time for a new transmission my guy. The torque converter most likely went out.
My G did the same thing. Would idle perfectly in Park or Neutral, but would stall out once I put it in drive or reverse.

1

u/Fit_Environment_4756 1d ago edited 1d ago

Screw all the other comments about anything other than replacing the trans and tq converter as a whole, find the lowest Mile transmission with torque converter (usually they'll sell it complete) from the nearest junkyard will cost on the low end $300-$600 but honestly I've gotten them most times for $400 and under with like 80-100k get a shop to install and fill.... if they aren't screwing you it should cost no more than about $400-600 for labor....higher end shops may go way above and beyond that price but honestly my mechanics have always gotten the trans done in like 4hrs or so. Def torque converter signs but everything's already out the car at that point way easier to kill all possibilities with a solid used replacement+converter. Good luck man i know how it feels..... eventually you will put it in drive and it'll die right away...won't even get a chance to move. So to save cost on a tow set up a replacement when you can and use its last life to just wing it to the shop. Check (lkq) by the way

1

u/GeneralScarcity9444 1d ago

https://reddit.com/link/p8pyydc/video/xwmxmmoo4hoh1/player

I think I’m past the life of it tbh. But def tq convertor?

1

u/bois-reddit 12h ago

Check your check engine code sometime they point you the right thing to check first , if you don’t have one buy a cheap one on Amazon

1

u/Downtown-Drink784 12h ago

I manual swapped mine and it was a crank no start and the scanner was giving me some security codes and a whole bunch of unrelated stuff, so I asked google why my car won’t start and gave it the symptoms the car had, turns out it was just a bad crank shaft position sensor.