Jump to content

Brake pedal hard to push

gerald compton
 Share

Recommended Posts

Grjfer Enthusiast

Grjfer

Posted
Posted
2 hours ago, aliveguy5 said:

@rRandom I feel exactly how you do and I had the same feeling in my 2020 TB. Brakes worked much better with a trailer attached, and I have to work more unloaded. Same exact feeling on my 2021 HD. I wonder if there is some kind of sensor that increases the pressure when it sense a trailer or load. I'd love to have an engineer respond to this because I do wish my brakes felt like they do when loaded all the time. Do they make an adapter to plug in that will make the truck think a trailer is attached? If so that'd be a great test. 

Wonder if you plug in a 4 to 7pin adapter? 

  • Replies 57
  • Created
  • Last Reply

Top Posters In This Topic

Popular Days

Top Posters In This Topic

Popular Days

Popular Posts

paticus
paticus

I feel a similar way. I also feel like I have to be very careful in drive thru's as I've caught the truck creeping forward because i didn't have enough pressure on the brake pedal. 

TheElementalCashew
TheElementalCashew

I had this problem on my 2021 AT4. Very soft brakes that would only get firmer if I pumped the pedal, and creeping at stop lights.    This fixed the problem for me: place the truck in park.

gerald compton
gerald compton

Bought a 2500 sierra denali a week ago, It seems to me that i have to push excessively on my brake pedal to stop, but not sure that maybe i`m just used to the f250 diesel that i drove for 8 years. Has

Posted Images

nutdriver Enthusiast

nutdriver

Posted
Posted
19 hours ago, Grjfer said:

Wonder if you plug in a 4 to 7pin adapter? 

I am open to learning but to my knowledge this adapter only re-maps pin positions to a new location.  There is no cross connection or load being applied so I would not seem like this would have any impact. 

  • Like 1
aliveguy5 Enthusiast

aliveguy5

Posted
Posted
On 7/16/2021 at 4:33 PM, nutdriver said:

I also have noticed that my 2021 3500 brakes are not as strong as I would like.  I wonder if some of the sense that the brakes perform better with a trailer attached is that the trailer brakes are helping to also stop the truck?  We have the capacity to increase the power going to the trailer brakes relative to applied pedal pressure.  As a result, we can dial in the braking sensation we are looking for.  Not saying there is not something more mysterious going on but sharing another theory.

I follow your logic here and it shouldn't be dismissed. I've tested my brakes with and without trailer brakes and everything feels tighter when I'm towing. I have more feedback in the brake pedal and response just seems better. Sometimes coming up to a light (unloaded) I feel as if the TC isn't unlocking quick enough and torque of the motor is pushing it ahead. There are other times the brakes feel exactly the same and truck doesn't lurch... My head is going towards the TC not unlocking but I'm not a mechanic or expert so I could be way off. 

  • 3 weeks later...
KuiMonster Enthusiast

KuiMonster

Posted
Posted
On 8/13/2020 at 5:45 PM, gSwift said:

I think i've finally gotten used to it, but I definitely feel the same! It feels noting like my last three 1500's or my Yukon. I wondered if it has anything to do with the weight of the vehicle.

I’m used to it as well but it’s does take more effort to stop and seems to take forever to stop and stops hard. It’s a odd feeling. 
when I drive my wife’s explorer I stop really fast and hard the first couples stops lol. 

Zani Koxha Enthusiast

Zani Koxha

Posted
Posted

Yeah I just got the 2021 gmc 3500hd regular cab 8ft bed srw 4x4 sle my truck is only 6640 curb weight and my breaks were so much better than the crew cab Denali dutamax srw curb weight on that 8370 you can feel that 1700 pound difference I also never creep but definitely more pressure required at red light then my ford f550 

20210726_035531.jpg

  • 3 weeks later...
ILSilverado Enthusiast

ILSilverado

Posted
Posted

I just went from a 2020 1500 to this 2021 2500 and the brakes are awful on the 2500 I just had an accident in a drive through the truck creeped with the brakes applied and wham I hit the lady in front of me. You really have to trounce on these brakes they almost feel like there is no power assistance at all. I HATE these brakes. The 1500 brakes were 100% fine and normal feeling.

TheElementalCashew Enthusiast

TheElementalCashew

Posted
Posted

I had this problem on my 2021 AT4. Very soft brakes that would only get firmer if I pumped the pedal, and creeping at stop lights. 

 

This fixed the problem for me: place the truck in park. Depress the brake pedal as far down to the floor as physically possible. Release the brake pedal and let it travel on its own all the way to the top. Repeat the process one more time. 

 

After doing this, my brakes act as I would expect on a truck this size. 

  • Thanks 2
aliveguy5 Enthusiast

aliveguy5

Posted
Posted
1 hour ago, TheElementalCashew said:

I had this problem on my 2021 AT4. Very soft brakes that would only get firmer if I pumped the pedal, and creeping at stop lights. 

 

This fixed the problem for me: place the truck in park. Depress the brake pedal as far down to the floor as physically possible. Release the brake pedal and let it travel on its own all the way to the top. Repeat the process one more time. 

 

After doing this, my brakes act as I would expect on a truck this size. 

I will try this and thank you!

SlowerTrafficKeepRIght Enthusiast

SlowerTrafficKeepRIght

Posted
Posted

While you could have a problem that the dealership or mechanic should check out. 

 

If you were to look into upgrading your rotors and brake pads.  Look into PowerStop (https://www.powerstop.com/).  I've have had these on nearly all of my trucks.  Then too ad EBC (https://ebcbrakes.com/) brake pads to the PS rotors. 

You will notice a huge difference. Just make sure you read and FOLLOW the PowerStop instructions on breaking in the rotors and pads!!! VERY IMPORTANT!

 

 

 

Grjfer Enthusiast

Grjfer

Posted
Posted
56 minutes ago, SlowerTrafficKeepRIght said:

While you could have a problem that the dealership or mechanic should check out. 

 

If you were to look into upgrading your rotors and brake pads.  Look into PowerStop (https://www.powerstop.com/).  I've have had these on nearly all of my trucks.  Then too ad EBC (https://ebcbrakes.com/) brake pads to the PS rotors. 

You will notice a huge difference. Just make sure you read and FOLLOW the PowerStop instructions on breaking in the rotors and pads!!! VERY IMPORTANT!

 

 

 

I don't feel it's a rotor/pad issue rather a boost issue. The pedal travel is so far down, but it will stop. A few pumps of the brake pedal will firm my pedal pressure greatly while also allowing for the brakes to activate at the top of the stroke rather than nearly at the bottom. 

aliveguy5 Enthusiast

aliveguy5

Posted
Posted
22 minutes ago, Grjfer said:

I don't feel it's a rotor/pad issue rather a boost issue. The pedal travel is so far down, but it will stop. A few pumps of the brake pedal will firm my pedal pressure greatly while also allowing for the brakes to activate at the top of the stroke rather than nearly at the bottom. 

I feel the same way... If I lay on the brakes loaded or unloaded I stop very controlled and quickly. It just seems that the pedal travel to get to that point in consistent. I wonder if I should bleed the brakes. 

Grjfer Enthusiast

Grjfer

Posted
Posted
6 hours ago, TheElementalCashew said:

I had this problem on my 2021 AT4. Very soft brakes that would only get firmer if I pumped the pedal, and creeping at stop lights. 

 

This fixed the problem for me: place the truck in park. Depress the brake pedal as far down to the floor as physically possible. Release the brake pedal and let it travel on its own all the way to the top. Repeat the process one more time. 

 

After doing this, my brakes act as I would expect on a truck this size. 

No sure why this works, but it made a HUGE difference. 

lowaggie New Member

lowaggie

Posted
Posted

I had a similar issue. I looked under the dash on my 2020 2500HD and the hydroboost was leaking. Mild leak, but the booster was wet under the dash. Got the hydroboost replaced under warranty and all good now. Brake pedal feel is a lot better and stopping power is greatly improved. 

Create an account or sign in to comment

You need to be a member in order to leave a comment

Create an account

Sign up for a new account in our community. It's easy!

Register a new account

Sign in

Already have an account? Sign in here.

Sign In Now
 Share
Go to topic listing

  • Latest Articles

  • Posts

    • txab
      Gas Prices

      By txab · Posted

      Still $3.01 with even more places at this price
    • BCGM
      Recalls 2024 Chevrolet HD

      By BCGM · Posted

      JW2024 and Others is this site for Oshawa built Trucks as well ? Thank You !
    • BCGM
      Remote Start Noise 2024 2500 HD Gas

      By BCGM · Posted

      Thanks JR that would be great if you could do that !!! Do you have a link to where this was discussed before ? I cant seem to find it  Thank You Again !
    • Another JR
      Remote Start Noise 2024 2500 HD Gas

      By Another JR · Posted

      Oil pump noise was discussed before.  I will try to remember to record a remote start later this morning. 
    • Chuck FB
      MPG at 600 miles

      By Chuck FB · Posted

      There are probably a few threads talking about fuel mileage but this one seemed to fit the stats I have seen based on my typical local driven route but with different outcomes based on different seasons/temperatures. I have a few hundred pounds of items that consistently ride on the truck at all times such as a bak flip cover, rubber bed mat, tools and extra fuel so I would be something over 8100 lb without me in the truck. All these examples are based on a 100 mile round trip to a town plus running around town so maybe 110 to 120 miles in total for a trip. Using regular fuel and I assume it always has some ethanol in it but don't know the percentage they blend in. Also speed wise I am going at 62 mph and non aggressive driving although less speed yet if its crappy winter condition roads. I am going by an initial reset of the computer generated fuel use numbers averaged over a couple of thousand miles or so for each weather/season so they may be more optimistic then actual hand calculated numbers. Basically this is painting a picture of doing the same drive but seasonal conditions and temperature being the major variable to the end result. Oh and although I am in Alberta Canada, I am converting it to miles per US gallon so there is no confusion.    So winter time it gets cold here, no real surprise there and the roads can be clear at times but also often have packed rough snow or are are driving through loose snow ( they do a poor job of plowing the highways ) and yes this includes the extra idle engine time due to trying not to freeze ones butt off. 12.7 mpg is what I was getting during the winter months on average.    Then during the spring when it was around the freezing point and the highways are clear of snow, I was getting around 14.25 mpg.   Summer time, I have been getting around 15.15 on average but certainly some of the trips showed quite a bit better fuel mileage, so much depended on how much or little I had driven around town and number of engine restarts after sitting for a while at each location. But stating a best fuel mileage trip to town pretending that is what the truck gets on average is fooling ones self for sure !.      As I said in a different post, I had driven a 645 mile trip over a couple of days stint to a different destination then these other daily to town examples above, and was done during the summer with nice weather and not bucking a head wind, also keeping at 62 mph and its a rolling landscape type highway drive ( this isn't southern Alberta or Saskatchewan flat lands ) Hand calculated fuel mileage in this case though and it came out to 17.65

  • GM-Trucks.com Clubs

  • Popular Contributors

×
×
  • Create New...