Guys i noticed today that when i stomp the gas in my 06 ss 5.3 it completely cuts out after about 1/2 throttle if i let back to there it takes off again but anything past that and it does nothing. Any ideas why?

 

Throttle positioning sensor maybe?

 

I was wondering that too but does it have a tps? Looking through my hanes manual it may have a different setup than that and its called something else.

 

Hope this helps http://repairguide.autozone.com/znet...3f80202f50.gif

 

Thanks for the help !

 

Try turning off your traction control and stomping it.

The car's computer could also be sensing knock and cutting fuel to compensate. Are you using 93 octane?

 

Do the RPMs rise, but the car not "go"? Then when you let off, it catches? Good suggestions by everybody.

 

Good point. The trans is a weak point on these cars...

 

Great input people...charvel, I require more info on/ as to when does this happen is it at any speed or is it just from a stand still / slow roll?


The LS4 has a totally different computer communication than any previous models/ drivetrains. The torque management, tranny nannies, anti score systems are very restrictive. So if you could give any more info as to conditions when this is happening ( example: are your wheels straight, are you moving or standing still and then flooring it, are you doing 40 mph and flooring it and then it happens. )


Have you scanned for any codes? There can be stored codes that do not trigger the check engine lamp.

 

It does it at any speed straight or turned also when im in park and floor it it wont pass about 3k either but that may be a rev limiter im thinking. Yeah trans is a weak point i had it rebuilt and upgraded when i got it. I think its something to do with traction control now i had that and the abs light come on the other day and hasnt went off