LBZ: pulls hard at idle

[jcm]

Hello I have a 2007 lbz 4wd automatic Chevy and here's the issue. It pulls hard at idle like the converter is not disengaging. Do y'all have any ideas on what the cause might be?

 

[JJLEODIRTYMAX]

FPR would be my guess. -JJ

 

[jcm]

What does fpr stand for?

 

[Mike L.]

Hello I have a 2007 lbz 4wd automatic Chevy and here's the issue. It pulls hard at idle like the converter is not disengaging. Do y'all have any ideas on what the cause might be?

Stock trans?

 

[adeso]

What does fpr stand for?

Fuel Pressure Regulator, is it surging?

 

[jcm]

No surging and the engine is at normal speed it isn't idling high

 

[jcm]

Yes stock trans

 

[Mike L.]

Bad converter.

 

[jcm]

If it is the converter should I go back stock? If not which aftermarket do you suggest

 

[Mike L.]

If it is the converter should I go back stock? If not which aftermarket do you suggest

If you're not going to do the trans buy the 2011 Duramax converter.

 

[jcm]

The 2011 stock converter?

 

[DBUSHLB7]

The 2011 stock converter?

Yes I think he meant stock from a 2011 Trans.

 

[jcm]

Ok thank y'all

 

[Sledheadxp800r]

Definitely sounds like a bad converter.

It's not possible for an Allison to lock the tcc in 1st gear correct?

 

[x MadMAX DIESEL]

yeah its your tcc dragging. pain in the ass, watch your temps.

 

[JoshH]

yeah its your tcc dragging. pain in the ass, watch your temps.

Not necessarily, but it could be.

 

[onebaddmaxxx]

Definitely sounds like a bad converter.

It's not possible for an Allison to lock the tcc in 1st gear correct?

5 speeds cant but 6 speeds can. sounds like converter welded itself together

 

[Mike L.]

If a TCC drags, it will do it in any gear. Controls have nothing to do with it.

 

[christopherglenn]

I can find nothing in efilive to lock to the TC in 1st, I think it would require an aftermarket lockup box.

 

[x MadMAX DIESEL]

Not necessarily, but it could be.

What else could it be? That's what happened to mine with the same symptoms. I had to throw it in neutral every stop. It would heat up fast also. I made a 4.5 hour drive with it like this, so its not to say you need to totally park it till you get it fixed... If its your only vehicle I mean, just try not and let the trans over heat.

Sent from my PC36100 using Tapatalk 2