Gas Pedal Travel

[BenBar]

When I do WOT runs, I notice the feel of the gas pedal is inconsistent. The pressure required to fully depress it seems constant, but at times, the pedal is notchy/sticky at 3/4 throttle. The sensation is akin to driving an old-school muscle car with a 4bbl carb, where the action of the secondary barrels can often be felt through the pedal. Anyone else experience this phenomenon? And BTW, it's not related to my tune, as this has been an issue since day one.

 

[nhcowboy28]

When I do WOT runs, I notice the feel of the gas pedal is inconsistent. The pressure required to fully depress it seems constant, but at times, the pedal is notchy/sticky at 3/4 throttle. The sensation is akin to driving an old-school muscle car with a 4bbl carb, where the action of the secondary barrels can often be felt through the pedal. Anyone else experience this phenomenon? And BTW, it's not related to my tune, as this has been an issue since day one.

Have you excluded the “kickdown” portion from your evaluation ?

 

[BenBar]

Have you excluded the “kickdown” portion from your evaluation ?

Kickdown?

I've never encountered this before in any fuel injected vehicle. I owned a highly modified '76 firebird that required a extra push to open the secondary barrels, such that throttle modulation felt "staged" if you will.

After I bought the stinger, I drove around thinking 3/4 throttle was the limit of the pedal's travel. Sometime thereafter I pressed a little more forcefully at the 3/4 point, thus learning the car had more to give. Strange. Ill bring it up with the dealer.

 

[nhcowboy28]

Kickdown?

I've never encountered this before in any fuel injected vehicle. I owned a highly modified '76 firebird that required a extra push to open the secondary barrels, such that throttle modulation felt "staged" if you will.

After I bought the stinger, I drove around thinking 3/4 throttle was the limit of the pedal's travel. Sometime thereafter I pressed a little more forcefully at the 3/4 point, thus learning the car had more to give. Strange. Ill bring it up with the dealer.

The kickdown drops immediately to lower gears on the autos. (7th to 3rd for example). You can feel it click.

 

[Gtecko]

kickdown is to push the pedal down quickly to get to lower gear ?

 

[StingerGT1Mike]

I had this same question the other day. It is the trans kickdown and it is normal. I do agree it is weird on a new vehicle with modern tech.

 

[Terry@BMS]

Get a BMS pedal tuner to shorten the pedal throw.

 

[StungBlueGT2]

Kickdown?

I've never encountered this before in any fuel injected vehicle. I owned a highly modified '76 firebird that required a extra push to open the secondary barrels, such that throttle modulation felt "staged" if you will.

After I bought the stinger, I drove around thinking 3/4 throttle was the limit of the pedal's travel. Sometime thereafter I pressed a little more forcefully at the 3/4 point, thus learning the car had more to give. Strange. Ill bring it up with the dealer.

I had a 77 TransAm and multiple other cars with a 4 barrel carburetor, and the kickdown switch feels similar.

Most modern high performance fuel injected vehicles have this feature and it simply allows you to achieve almost full throttle without the automatic transmission dropping down gears. It’s so you can hold the same gear, but still basically get full throttle. It’s just a switch that makes a “click” type of feeling at the last 10% before the gas pedal touches the floor.

Once you get used to it, it’s a great feature for an automatic transmission vehicle.

 

[G-652247]

I had a 77 TransAm and multiple other cars with a 4 barrel carburetor, and the kickdown switch feels similar.

Most modern high performance fuel injected vehicles have this feature and it simply allows you to achieve almost full throttle without the automatic transmission dropping down gears. It’s so you can hold the same gear, but still basically get full throttle. It’s just a switch that makes a “click” type of feeling at the last 10% before the gas pedal touches the floor.

Once you get used to it, it’s a great feature for an automatic transmission vehicle.

I just discovered this “last 10% of travel detent” in the Stinger GT gas pedal assembly. Did’t realize before I wasn’t getting 100% power but noticed “sluggish” acceleration at times when I thought I was flooring it. What a difference at true WOT. As a drive by wire throttle, this behavior is entirely at the pedal assembly - try it with the engine off. It feels more like a defect, and I kinda worry about it sticking at WOT one day.

 

[nhcowboy28]

I just discovered this “last 10% of travel detent” in the Stinger GT gas pedal assembly. Did’t realize before I wasn’t getting 100% power but noticed “sluggish” acceleration at times when I thought I was flooring it. What a difference at true WOT. As a drive by wire throttle, this behavior is entirely at the pedal assembly - try it with the engine off. It feels more like a defect, and I kinda worry about it sticking at WOT one day.

Probably safer not to Floor it ever…

 

[M'Kehyah]

Not a defect.
[rolls eyes]

 

[SafetyPilotCal]

Lots of cars have the whole "extra detent" accelerator now. I figured more people would be used to it. I'd say a third of the things I rent when I'm travelling for work have it.

 

[MerlintheMad]

Detent = Kickdown Switch. Now I know.

 

[CoconutRob]

BMS pedal tuner definitely a good mod for the stock pedal feel.

 

[nhcowboy28]

BMS pedal tuner definitely a good mod for the stock pedal feel.

But that only change throttle response in the current gear right? To get the auto to downshift, you’d have to still floor it past the detent correct?

 

[CoconutRob]

But that only change throttle response in the current gear right? To get the auto to downshift, you’d have to still floor it past the detent correct?

In sport mode I don't believe I have to floor it to down shift