Talon dies at 40 mph

[TripleB]

The talon belongs to my co-worker's dad but I figured I would see if someone here has had this problem.

2019 x with around 4000 miles.

It runs and drives fine but when it reaches around 40 mph it dies. No codes. It will start right back and run fine as long as no high speed. Dealer had it for 3 months and replaced fuel pump, plugs and he thinks throttle position sensor under a extended warranty. Probably a long shot but I figured i would try to help him out.

 

[Admin]

 

[Neohio]

What mods done to the Talon?
Is it always the same gear it dies in?
Always 40MPH? Balls to the wall or cruising up to that speed?
Does the engine just die? Does the IP die as well? If he applies the brakes while slowing down, will it allow restart?

When did it start? After a mud pit? Randomly during a ride? One day it was good, next it wouldn't hit 40?

 

[Neohio]

I don't have enough seat time in a Talon to know when they shift. But I wonder if it is the transmission. Maybe when it hits X gear, something internal shorts out, ECM doesn't like the signal and shuts engine to protect itself.

 

[TripleB]

What mods done to the Talon?
Is it always the same gear it dies in?
Always 40MPH? Balls to the wall or cruising up to that speed?
Does the engine just die? Does the IP die as well? If he applies the brakes while slowing down, will it allow restart?

When did it start? After a mud pit? Randomly during a ride? One day it was good, next it wouldn't hit 40?

It's bone stock but I will find out the rest.

 

[TripleB]

What mods done to the Talon?
Is it always the same gear it dies in?
Always 40MPH? Balls to the wall or cruising up to that speed?
Does the engine just die? Does the IP die as well? If he applies the brakes while slowing down, will it allow restart?

When did it start? After a mud pit? Randomly during a ride? One day it was good, next it wouldn't hit 40?

This is all I have as of right now.

Bone stock. I'm assuming he probably never uses manual or the paddles in auto. He doesn't know what gear it's in. Only that's in high range.

It's always between 35 and 40. Doesn't matter if he cruises to that speed or balls to the wall to that speed the engine just dies. IP stays on. Never tried a rolling restart while pressing the brake. Never swamped. One day it was good and the next day it just started dying.

 

[Neohio]

This is all I have as of right now.

Bone stock. I'm assuming he probably never uses manual or the paddles in auto. He doesn't know what gear it's in. Only that's in high range.

It's always between 35 and 40. Doesn't matter if he cruises to that speed or balls to the wall to that speed the engine just dies. IP stays on. Never tried a rolling restart while pressing the brake. Never swamped. One day it was good and the next day it just started dying.

If it is a random happened today, but not yesterday, have they inspected wiring for rodent damage?

I am curious if it can be replicated in different gears. If it always dies trying to shift 5th, will it still dies if held in 4th and given more throttle etc. Does that make sense?

 

[Neohio]

I think you need the Talon in your shop for further diagnostics.

 

[TripleB]

I think you need the Talon in your shop for further diagnostics.

If I had a shop lol

 

[TripleB]

If it is a random happened today, but not yesterday, have they inspected wiring for rodent damage?

I am curious if it can be replicated in different gears. If it always dies trying to shift 5th, will it still dies if held in 4th and given more throttle etc. Does that make sense?

Yes it makes sense. I'm gonna tell them tho drive it in manual and see what happens.

 

[JenElio]

This is all I have as of right now.

Bone stock. I'm assuming he probably never uses manual or the paddles in auto. He doesn't know what gear it's in. Only that's in high range.

It's always between 35 and 40. Doesn't matter if he cruises to that speed or balls to the wall to that speed the engine just dies. IP stays on. Never tried a rolling restart while pressing the brake. Never swamped. One day it was good and the next day it just started dying.

🤔..........have you driven it?.......just say'n!!

 

[TripleB]

🤔..........have you driven it?.......just say'n!!

No, you idiot!

 

[Neohio]

If I had a shop lol

Like that keeps you from working on your own stuff!
You have my cell if you get the machine and want to bounce ideas off an idiot.

 

[JenElio]

No, you idiot!

😢

 

[906UP]

Tagging @PaulF

Thinking out loud here...... seems to be speed related, at least that's the info we have so far. There's 5 or 6 speed sensors on the Talon, maybe one is freaking out and losing signal.

 

[HondaTech]

2wd and 4wd?

Can it be replicated without moving, like on a 2 post lift?

 

[NTCPrezJB]

If I had a shop lol

I mean you don’t have to tell him you don’t have a shop. Lol

 

[NTCPrezJB]

🤔..........have you driven it?.......just say'n!!

Ed Zachery!!

 

[CMB]

If @TripleB drove it, he would already be looking for one to buy and torch the JAK. 🤣

 

[P1K5Dave]

One more question that wasn't clear from your post: Is it intermittent, or does it always and automatically happen when he hits 35-40?

Can't rule out the possibility of a ground issue as well, dunno if the Talons have shown the issue like the P1000 has been known to...

 

[Red500]

Like I said in the p7 thread are you sure it's not just playing dead.