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Gas Pedal Flex Solution

FL335i
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John K. Enthusiast

John K.

Posted
Posted (edited)

They can redesign the peddle all they want, but it's futile if they keep mounting it to a flimsy piece of plastic.

 

Isn't that one of the signs of insanity, doing the same thing over and over, expecting different results each time?

:)

Edited by John K.
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FL335i
FL335i

After noticing the gas pedal has a lot of travel before it actually starts to work, I looked at it closely. I noticed it's a very bad design. There is a plastic bracket that is bolted to the floor p

Rubyralph
Rubyralph

I agree that a good video would be worth a million words of what the problem is and where it's located.   I filed the NHTSA complaint shown below:     VEHICLE SPEED CONTROL: 2014 Chevrolet Silver

FL335i
FL335i

I can't believe this post is still going strong almost 3yrs later. Glad my fix is helping others.

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  • 2 weeks later...
m3n00b Enthusiast

m3n00b

Posted
Posted

After some investigating my 2016 doesn't seem to have the flex mentioned here.

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Sierra Dan Senior Enthusiast

Sierra Dan

Posted
Posted
13 minutes ago, m3n00b said:

After some investigating my 2016 doesn't seem to have the flex mentioned here.

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Yours must be an exception to the rule.

My boss just purchased a new 2018 LTZ and he has already shimmed it.

From what I understand on the 2019 Forum, the throttle response is crisp

and instant on the new T1 trucks, with no flex. So maybe the engineers do listen to us here... :)

  • Like 1
m3n00b Enthusiast

m3n00b

Posted
Posted
Yours must be an exception to the rule.
My boss just purchased a new 2018 LTZ and he has already shimmed it.
From what I understand on the 2019 Forum, the throttle response is crisp
and instant on the new T1 trucks, with no flex. So maybe the engineers do listen to us here... [emoji4]
Strange. I wiggled the bracket and the pedal. There's some side to side play but none when you depress the pedal. Also was having trouble finding where I would put the shim on my adjustable pedals. Do I need to take everything off?

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Sierra Dan Senior Enthusiast

Sierra Dan

Posted
Posted

There is play side to side but the issue is front to back.

If you look on the firewall, you will see where the entire pedal assembly is attached there

with a large nut over a square piece of plastic or metal bracket (depending on trim level)

See below. The shim goes behind this nut and bracket. Hard to get to and you have to peel carpet back.

The arrow in the left pic shows where the shim goes.

 

image.png.2651e4756eb5017405d0144b3276dc64.png        image.png.cd8daf3cb2794aba363161c322b27e66.png

  • 3 weeks later...
NWI Denali Enthusiast

NWI Denali

Posted
Posted

I just did this on my 6.2 with power adjustable pedals, and all I can say is, Wow I am a believer. My pedal was always lazy feeling. Well, I practically chirped the tires pulling out of my driveway. It literally feels like a free tune.

  • Like 1
Sierra Dan Senior Enthusiast

Sierra Dan

Posted
Posted
On ‎9‎/‎29‎/‎2018 at 9:00 PM, NWI Denali said:

I just did this on my 6.2 with power adjustable pedals, and all I can say is, Wow I am a believer. My pedal was always lazy feeling. Well, I practically chirped the tires pulling out of my driveway. It literally feels like a free tune.

It is a FREE TUNE ! :cheers:

BigBlueLB756 Senior Enthusiast

BigBlueLB756

Posted
Posted

Oh, that we could so easily jam one in the AFM/DOD so easily.  And not to forget the new Stop/Start feature on the newest trucks!

catpartsman Enthusiast

catpartsman

Posted
Posted

I have adjustable pedals on my 15 Sierra 1500 and I checked the “slack” in the pedal the other day and didn’t feel not see really any. Is the am I missing something or am i just a lucky one without any problems?


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Thomcat Senior Enthusiast

Thomcat

Posted
Posted

I have the adjustable pedals also.....slack is not in the pedal, but in the plastic carrier below the pedals are mounted on  an is not directly touching the firewall. Hard to see if you have the extra thick rug pad, and harder to slip a shim under it, easy to see by and install the shim by pulling up on the flexible plastic base

 

Sorry I waited 2 years to try it....what a dramatic difference it makes

catpartsman Enthusiast

catpartsman

Posted
Posted

Oh ok. When I tested my pedal with my hand, I was looking at the plastic bracket and didn’t see much movement if any. I’ll have to try this again and see what I come up with.


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02SOMWS6 Enthusiast

02SOMWS6

Posted
Posted

I did this a couple weeks ago, with a composite shim stuck behind there.  Definite improvement with throttle response.

 

As a mechanical engineer, I tried to wrap my head around why they designed it the way they did.  My best guess is to dampen vibrations.  With the shim, I can definitely feel more vibration in the go pedal compared to floating from the factory.  I might try replacing the shim with a dampener of some sort, see if I can get some of the road feedback down.

rkj__ Enthusiast

rkj__

Posted
Posted

When I first got my truck, I was having a hard time getting the truck to pull off the line smoothly.  This thread proved to be helpful.  There was definitely significant flex in the assembly.  The first bit of pedal movement did not yield any actual throttle input / response. 

 

I jammed a piece of paint stick behind the assembly, but managed to crack the paint stick when stomping on the pedal.  Whoops.  lol

 

I then chucked a small plastic bicycle tire lever behind the assembly.  It has held up fine, and makes the throttle response much more to my satisfaction. 

Thomcat Senior Enthusiast

Thomcat

Posted
Posted
On 10/1/2018 at 9:48 AM, BigBlueLB756 said:

Oh, that we could so easily jam one in the AFM/DOD so easily.  And not to forget the new Stop/Start feature on the newest trucks!

Start stop doesn't bother me, actually saves gas when stopped a a RR crossing with a triple header pulling 200 coal cars.

 

No override switch in the '18 Traverse or Malibu but easy enough to defeat switch to "M" or "L" and click to maximum gear , eg. L9 in the Traverse L6 in the Malibu and no more start stop for the rest of the drive cycle.

 

Use the Silverado now only for heavy work.....the '18 Traverse amazes the crap out of me, a whole different model compared to my '15. All the high tech goodies with on the fly 2WD/AWD 310 hp V6 that 0-60 in 6 sec and gets 29-30 mpg (yes, 30 mpg ) on the highway in 8th and 9th overdrive ears, mill is turning 1800 rpm at 70 mph and drops multiple gears so it still has plenty of steam at highways speeds. Four comfortable buckets plus a three seat bench for Moe Larry and Curly. Handles like a cat and climbs hills like a goat, new high performance torque convertor and improved low gear clutches in the tranny. Acoustic glass and active noise cancellation for a quiet ride. Equipped with radar, front, rear and side HD cameras (even has a camera washer for the rear)and 8" screen with night vision it synthesizes a top down view of the vehicle and surroundings....electronic wide angle rearview mirror so no heads blocking the rear window..you can black out all the windows and still drive the car! D optic LED headlights with no more shutters so both high and low beams operate simultaneously on high. Pedestrian alert and auto braking can spot a deer at dusk and give me half a chance of avoiding collision with those road rats. There's even a gremlin hiding in the Nav head that auto zooms the map and duplicates turning directions in the 4" speedo display as you approach as turn/turnoff. New multi link rear suspension squats on a hard stop so no nose diving or pitching in turns. Damn thing is more fun to drive than my old Camaro, a sports car when I'm in and a family car when the wife is riding shotgun without being a cop magnet! It is physically larger than the Tahoe and downsized GMC Acadia and goes for $15K less than an equivalent Tahoe. Took Chevy 10 years to redesign the Traverse and though the new ones bear the nameplate it is a completely different animal, only parts in common with the gen1 are the lug nuts. Looks good in the Redline blackout version with all around LEDs. Sorry to go on about this but I'm amazed every time I get into it.......this is the finest driving Chevy I have driven in 50 years of driving.....even better than my '74 Impala Custom 454 that got 6 mpg.!

 

Anyone in the market for a Tahoe or Suburban should take a look at the 2nd gen Traverse first.

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