Vehicle stalls when put into reverse/drive from a cold start

2015 NISSAN ARMADA
8,000 MILES • V8 • 2WD • AUTOMATIC
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JALKYL
  • MEMBER
  • 2 POSTS
If it is rolling a little it will start and drive okay.
While driving the vehicle has a hard time shifting into third. will start to shake and try to shift but not do it. It can be forced into third gear with the shift mechanism. It shifts into fourth okay, but will not shift into fifth gear at 70 mph (or at 70 mph it starts to shudder and won't accelerate further.) I assume it is trying to shift.
Apr 3, 2019 at 11:42 AM
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SEVAG P
  • ✓ASE Certified Mechanic
  • 405 POSTS
  • ASE Certified Mechanic
hello,

As a first step check for fault codes to narrow the trouble shooting:
https://www.2carpros.com/articles/checking-a-service-engine-soon-or-check-engine-light-on-or-flashing

But it seems idle air control is not working properly when selecting gear or when engine load increase it will compensate the rpm to prevent engine stalling.

Check our guide for engine stalling:
https://www.2carpros.com/articles/stall-at-idle
https://www.2carpros.com/articles/engine-stalls
https://www.2carpros.com/articles/how-to-replace-an-idle-speed-control-motor-iac

Lets us know how it goes
Thank you.
Apr 3, 2019 at 12:06 PM
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JALKYL
  • MEMBER
  • 2 POSTS
Exactly right. I had the dealer work on another issue with it (it wouldn't start) and got it back like this. Turns out they had not connected the air flow sensor. Set the connector in place, but did not connect it. I hadn't driven it before, so didn't know that the drive issue was their fault, not an existing one on the car. Started right up drives great now. Thank You!
Apr 3, 2019 at 3:27 PM
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SEVAG P
  • ✓ASE Certified Mechanic
  • 405 POSTS
  • ASE Certified Mechanic
You are welcome. let us know when you need more help.
Apr 4, 2019 at 10:06 AM
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