Very touchy gas pedal

[Jeff Groves]

The 2001 Tahoe has a VERY touchy gas pedal from a stopped position.

I'm thinking a stronger spring would solve that?

 

[OneofFew]

Is it sticking? otherwise maybe a spring broke.

 

[Jeff Groves]

Is it sticking? otherwise maybe a spring broke.

It does not seem to be sticking. It's just very touchy when taking off from a stop. I'll be able to check the linkage today.

 

[mountie]

I just bought my 2005 Yukon 8 months ago.... As I cross the intersection, the road has some bumps. My foot moves when I run over the bumps and my peddle is also sensitive. I have to learn to be careful.

I am wondering if I can put some resistance to the peddle.....

 

[Tonyrodz]

I just bought my 2005 Yukon 8 months ago.... As I cross the intersection, the road has some bumps. My foot moves when I run over the bumps and my peddle is also sensitive. I have to learn to be careful.

I am wondering if I can put some resistance to the peddle.....

I have the same issue.

 

[Jeff Groves]

I found out I have Drive by wire? So not sure yet how to fix my issue unless I can do something to the pedal itself.

 

[mountie]

I found out I have Drive by wire? So not sure yet how to fix my issue unless I can do something to the pedal itself.

A sponge under the peddle?

 

[Doubeleive]

I like a snappy pedal, my 03 Silverado is like that sometimes if you just tap the pedal she want's to do a burnout, I have to warn anybody else that drives it that she's feisty lol, but what people do sometimes is put zip ties on the cable down at the pedal to take out any cable slack, you might want to just take a peek down there and see if that is the case, if so you can just take them off.

 

[Jeff Groves]

Checked the pedal. There are 2 springs on the Drive by wire pedal. NO cables at all.
I believe I can change the one spring with a bit stronger one to tame the burn out take offs.
Will have to remove it to get data then it's just order stiffer springs from McMaster-Carr to try.

 

[mountie]

Great information...... Thanks.....

 

[Jeff Groves]

Here's what it looks like at the pedal. You can see one wound spring on the pedal shaft.
The long spring is the one I think a stronger spring would be easiest to work with.

 

[mountie]

Cool.... good photo.....

 

[Jeff Groves]

What would be nice is to mod that pedal so you could adjust that long springs tension.
1st thing I'm going to do is to bind a few coils with SS wire and see how it feels.

 

[Danny3737]

Here's what it looks like at the pedal. You can see one wound spring on the pedal shaft.
The long spring is the one I think a stronger spring would be easiest to work with.

Too bad you can’t just cut the spring where it loops in to the bracket, then bend the next coil to slip in to the bracket. Hope that makes sense

 

[Jeff Groves]

You can do that but I know it will not last long. Bending a tempered spring like that and it will snap at just the wrong time.
You could heat it and bend it then re-temper it but you better know what your doing!
Better to just buy a few stronger springs and test.

I may just go to the dead car yard and get a pedal bracket and mod it to be adjustable.

 

[Doubeleive]

I misread where you said it was drive by wire, I thought you had a throttle cable

 

[Jeff Groves]

I didn't even know it was drive by wire when I started this thread!
Obviously it sucked as I saw that later models are back to cables.

 

[Danny3737]

You can do that but I know it will not last long. Bending a tempered spring like that and it will snap at just the wrong time.
You could heat it and bend it then re-temper it but you better know what your doing!
Better to just buy a few stronger springs and test.

I may just go to the dead car yard and get a pedal bracket and mod it to be adjustable.

Maybe and adjustable bracket that you can slide and lock in to place with a nut and bolt. This way you could really fine tune the tension on the spring. It wouldn’t have to move much, a 1/2” should probably do it. Just don’t want to change the geometry of the spring angle.

 

[Jeff Groves]

I'm thinking of a pivot point and a simple adjuster bolt with a lock nut.

 

[Rocket Man]

Too bad it’s not an 06 or newer; Pedal Commander makes an interface that allows full adjustability of dbw throttles. I’m not sure if someone else makes one for the older vehicles. I was glad when I found out my 02 Denali has dbw when looking at blowers since Whipple doesn’t make one for drive by cable applications.