Slight bucking feeling while driving

[Gulfstream]

13 GT manual with 13k miles. Under conservative-moderate throttle input the car feels like its bucks/hesitates/stumbles. Car has a 93 Bama race tune. Any suggestions??

 

[Masheen365]

At what RPMs does it buck?

 

[Gulfstream]

I've noticed anything over say 2,000 rpm. Not sure the ceiling because I would up shift to the next gear.

 

[RestoStang67]

data log and send to bama

 

[stangs13]

I've noticed this myself on my car, but I get it at lower rpm ranges than that as well, it's very mild and is intermittent. The more I read about these sort of trembles and stutters in these cars the more it's seems to just be the nature if the beast . Tivct is the culprit for some of it if not all of it. Since you are tuned though it could have something to do with that!

 

[alcarames]

I have 2011 and I've had for over 3 years now. It's got 20k miles and I just recently noticed this. Mine occurs right at 2100 rpm's at very light part throttle. I've also recently moved to Pa from NJ, the roads are more hilly and long winding. This could be why it's more noticeable. I think it's related to the tivct engagement. I dunno.

 

[T.Bone]

Mine was doing the same thing on my bama tune, I noticed it most when the car was cold. I went back to the stock tune and put my venturi tube back in the CAI and it hasn't done it any more.

I always planned on contacting bama to see if it could be tuned out, but never got around to it.

 

[94_Vert]

Mine will do this if I don't completely turn off t/c.

 

[mtrsprt]

It's the drive by wire throttle body with the aftermarket tune.

 

[scott_0]

mine only surges a very little under lite throttle input when cold, stops once warmed up

 

[Chameleon76]

Re-load the tune?

 

[Serpent]

Mine bucks in 1st when accelerating 0-whatever mph. Its been like this since new, im at 2,150miles now. Should I take it to the dealer to have it checked out?

The car would surge forward then lose power, then surge forward then lose power. This is under normal acceleration too. All in 1st gear.

 

[forty74]

my 2012 did it stock with brenspeed and bama tune I just figured it was normal until it warms up

 

[Nick Nasty]

Everyone I've talked to that is tuned has a slight hiccup in the 2100 area. I just stay away from it. Only happens when im chillin in that area, accel and decel are unnoticeable.

 

[hand-filer]

I had similar issues with a Bama tune. It went away completely when I replaced it with a Steeda tune. It's the tune. Send them a data log. I'm sure they can correct it.

 

[alcarames]

Forgot to mention my car is stock.

 

[BPatterson]

I'm glad to see I'm not the only one living with this!

 

[125oh]

I also have this problem . I wonder if its something to do with the tuners adjusting the drive by wire for better throttle response .

 

[nosympathy]

had this with bama, don't have it with AED.

Get better tunes...

 

[Nuar]

I have it as well, with AED...