Dies when at idle in D or R after transmission rebuild

[Azthioth]

Had the transmission rebuilt. They changed the discs, rings, etc. Did not touch the valve housing. A day or two after the rebuild it began to shake and then die when idling in D or R. When moving it fine or in neutral or park.

Took it back but mechanic seemed stumped.

2015 Santa Fe 3.3 AWD

 

[kschachn]

Had the transmission rebuilt. They changed the discs, rings, etc. Did not touch the valve housing. A day or two after the rebuild it began to shake and then die when idling in D or R. When moving it fine or in neutral or park.

Took it back but mechanic seemed stumped.

2015 Santa Fe 3.3 AWD

I'm sure you already realize that's not a good enough answer from the shop that did the work.

And what does "When moving it fine or in neutral or park" mean? How is it moving in park?

 

[Number_35]

I'm sure you already realize that's not a good enough answer from the shop that did the work.

And what does "When moving it fine or in neutral or park" mean? How is it moving in park?

I assumed "When moving (in D, but not just sitting) it's fine, and is also fine when stopped in P or N".

 

[Number_35]

Had the transmission rebuilt. They changed the discs, rings, etc. Did not touch the valve housing. A day or two after the rebuild it began to shake and then die when idling in D or R. When moving it fine or in neutral or park.

Took it back but mechanic seemed stumped.

2015 Santa Fe 3.3 AWD

What are RPM in P and N? What do the RPM drop to when shifted to D or R (before stalling, of course)?

 

[mk378]

This means that the torque converter is not slipping at idle like it should. Or the engine is out of tune badly enough that the normal drag of the torque converter is enough to cause it to stall.

 

[kschachn]

I assumed "When moving (in D, but not just sitting) it's fine, and is also fine when stopped in P or N".

Ahha right I see now.

 

[KrisZ]

Most likely the torque converter solenoid is not unlocking it when it should. At least that's the problem in Chrysler minivans when they die when coming to a stop.

 

[GSCJR]

Sounds like it's still trying to relearn it's idle speed after the repair.

 

[clinebarger]

This means that the torque converter is not slipping at idle like it should. Or the engine is out of tune badly enough that the normal drag of the torque converter is enough to cause it to stall.

Converter Clutch dragging was my first thought, But I'm not well versed in Hyundai transmissions.

 

[proveitwithdata]

When you repeatedly press the brake in gear at a stop, does the vehicle stall as well?

 

[fantastic]

Maybe try a new Idle sensor? Take it back to them or have them make partial payment for repair at another shop?