Jump to content

Could you do me a favour?

Katie989

By Katie989
in Troubleshooting & Recalls

Recommended Posts

Katie989 Enthusiast

Katie989

Posted
Posted

It would be super awesome if yous could do me a huge favour! The next time you go to start your truck after it has been sitting for 5 plus hours (like in the morning after it has been sitting all night). Before starting the engine could you try pressing the brake peddle and report back with the results. Mine is hard as rock first push (not that I can push it lol). Im trying to figure out if it’s normal or not. 

 

I recently had the hard brake peddle while reversing into a parking spot issue that’s been posted on the forums a couple times. Dealership replaced the brake booster. But I think something is still not right with the brakes. Hard peddle after the truck sits for 5 hours and an inconsistent feeling of the peddle getting higher and harder after repetitive use sometimes makes me think this. But I’m also a little uneasy with the truck now, I don’t really trust it to stop. Dealership doesn’t think anything is wrong or just doesn’t believe me. Trying to figure out what to do. Truck is a 2015 Silverado crew cab V8 btw. 

PMurray Enthusiast

PMurray

Posted
Posted
It would be super awesome if yous could do me a huge favour! The next time you go to start your truck after it has been sitting for 5 plus hours (like in the morning after it has been sitting all night). Before starting the engine could you try pressing the brake peddle and report back with the results. Mine is hard as rock first push (not that I can push it lol). Im trying to figure out if it’s normal or not. 
 
I recently had the hard brake peddle while reversing into a parking spot issue that’s been posted on the forums a couple times. Dealership replaced the brake booster. But I think something is still not right with the brakes. Hard peddle after the truck sits for 5 hours and an inconsistent feeling of the peddle getting higher and harder after repetitive use sometimes makes me think this. But I’m also a little uneasy with the truck now, I don’t really trust it to stop. Dealership doesn’t think anything is wrong or just doesn’t believe me. Trying to figure out what to do. Truck is a 2015 Silverado crew cab V8 btw. 
We all(?) depress the brake when starting and putting vehicle in gear. Rock hard pedal is not normal. If not fixed it's lemon law or recall justification, inho.

Sent from my SM-G935V using Tapatalk

rkj__ Enthusiast

rkj__

Posted
Posted

The brake pedal on my 2018 Sierra is never rock hard.

Centex14 Enthusiast

Centex14

Posted
Posted

Mine isn’t hard at a 117k mikes but I’ve experienced the hard pedal once in a drive through. My chargers brake pedal gets hard if it sits for a few days. It’s definitely vacuum related. Think I’m going to swap to an electric pump instead of the mechanical.


2014 z71 LTZ
Volant Intake
Borla Exhaust
Diablo
Bilstein 5100
Rough Country Level

bagger97 Enthusiast

bagger97

Posted
Posted

There is a TSB on the vacuum pump leaking oil into the brake booster. Warranty replacement of all the parts.

Katie989 Enthusiast

Katie989

Posted
  • Author
Posted
18 hours ago, PMurray said:

We all(?) depress the brake when starting and putting vehicle in gear. Rock hard pedal is not normal. If not fixed it's lemon law or recall justification, inho.

Sent from my SM-G935V using Tapatalk
 

I only press the brake when putting the truck in gear, not when starting. But I might change that after this. I agree, it should be a recall. And from what I have been researching I don’t know why it isn’t!! I’ve reported the issue to Transport Canada’s Defect Investigations and Recalls Devision. 

Katie989 Enthusiast

Katie989

Posted
  • Author
Posted
2 hours ago, bagger97 said:

There is a TSB on the vacuum pump leaking oil into the brake booster. Warranty replacement of all the parts.

Yeah I seen it. I printed it off and showed the service advisor when I first took the truck in. He read it, said it seems like what I was describing and handed it back to me saying they usually check service bulletins. They replaced the brake booster so if there was oil hopefully they would have seen it. I’m 6 months out of warranty so I’m stuck paying for it myself. 

Katie989 Enthusiast

Katie989

Posted
  • Author
Posted
50 minutes ago, Bushleaguechew said:

Mine will get hard after repeated presses when the truck is off but is soft first press. Never hard while running


Sent from my iPhone using Tapatalk

Thanks! 

Do you have multiple brake peddle presses after the truck has been sitting for 5 plus hours or multiple presses right after the truck has been shut off? 

I have 6 presses of the brake peddle right after the truck is shut off but if I shut the truck off and wait 5 hours the first press is hard.

I guess what I’m trying to figure out is if that stored vaccume that you are releasing by pushing the brake with the truck off, is it in a closed / sealed system if nothing is broken? Or is it normal for it to dissipate over 5 hours? Or should it hold its vaccume for a certain amount of time? 

Thankfully, I haven’t had the rock hard peddle with the truck on since they replaced the booster but the peddle seems to get higher and harder when I press it frequently and this combined with the loss of stored vaccume when the truck is parked makes me think something is still wrong 

Sierra706 Senior Enthusiast

Sierra706

Posted
Posted
Thanks! 
Do you have multiple brake peddle presses after the truck has been sitting for 5 plus hours or multiple presses right after the truck has been shut off? 
I have 6 presses of the brake peddle right after the truck is shut off but if I shut the truck off and wait 5 hours the first press is hard.
I guess what I’m trying to figure out is if that stored vaccume that you are releasing by pushing the brake with the truck off, is it in a closed / sealed system if nothing is broken? Or is it normal for it to dissipate over 5 hours? Or should it hold its vaccume for a certain amount of time? 
Thankfully, I haven’t had the rock hard peddle with the truck on since they replaced the booster but the peddle seems to get higher and harder when I press it frequently and this combined with the loss of stored vaccume when the truck is parked makes me think something is still wrong 


I’ll check tonight. Even when running repeated pressing can blow through vacuum faster than it can be replenished


Sent from my iPhone using Tapatalk
Loco-diablo Senior Enthusiast

Loco-diablo

Posted
Posted
We all(?) depress the brake when starting and putting vehicle in gear. Rock hard pedal is not normal. If not fixed it's lemon law or recall justification, inho.

Sent from my SM-G935V using Tapatalk


It’s a 2015. Way beyond lemon law in most states.


Sent from my iPhone using Tapatalk

Archived

This topic is now archived and is closed to further replies.

Go to topic listing

  • Recently Browsing   0 members

    • No registered users viewing this page.

  • Forum Statistics

    250.5k
    Total Topics
    2.7m
    Total Posts

  • Member Statistics

    342,962
    Total Members
    8,960
    Most Online
    contrabombarde
    Newest Member
    contrabombarde
    Joined

  • Who's Online   2 Members, 0 Anonymous, 800 Guests (See full list)

  • Latest Articles

  • Posts

    • Jsdirt
      2010 Avalanche 5.3 not running correctly after engine swap.

      By Jsdirt · Posted

      From where I'm sitting this sounds like a compatibility problem. I'm assuming the 2007 was a 900-series truck, and not an 800-series (they were sold side-by-side in dealerships that model year), since it starts and runs.   This is why I HATE post-2006 vehicles. Everything becomes a huge problem when you try to keep the thing running for longer than the manufacturer has designed it to.    I can't remember when Global-A architecture started - either '10 or '11. For your sake, you had better hope it's '11, or you're going to be spending some BIG money to correct this cluster-eff. That's something you need to find out before doing anything else. You may have several computers bricked ... but the fact that it runs tells me you MIGHT be ok here.     EDIT: Just did a quick refresher. You're screwed. This is Global-A. The 2 systems are NOT compatible in the slightest. Once you get the correct engine in there that IS compatible, you're going to need to see how many computers are locked. Absolute NIGHTMARE to straighten out, too. Your buddy might be better off cutting his losses and finding something else.   Welcome to post-2006 vehicle electronics. This is why I quit the industry, and drive nothing built after 1994. This stuff takes all the fun out of wrenching!  
    • bwiese
      Show Us Your 2019 & Up T1 Pictures !

      By bwiese · Posted

      Recently acquired new 2026 Silv. 1500 WT  - L3B + 4WD,  std cab + std bed, in (duh!) Sierra White. Upgrades: replaced 'steelies' w/  Vision "Flow" black alloys,  17x8.5"; HDX nerf bar w/steps (black powdercoat); Weatherguard large/deep alloy saddle toolbox; Michelin fitted bedmat (sale, perfect fit) Weathertech door sill guards TBD: rear wheebox liners 4x black fender arch trim - searching for best  (Putco: chrome only; not looking for flares either!) -Bill    
    • Chuck FB
      Tire psi

      By Chuck FB · Posted

      True, hard to say what differences there may or may not be between Chev and GM as well as a production year or mid year part change either.    I just found it odd that under the Sierra choice on the Autel that many of the last few years of production year did not include the choice of changing the tire pressure but if that is an Autel thing or a GM thing as to why the choices were not there. Knowing what tpms sensors are on the truck should give some guidance into which choices on the tool even make sense to try as I wouldn't give up just yet with the tool but I guess he will see what if anything he comes up with if he finds out a bit more info and tries a few more things on the Autel. 
    • davester
      Needing this part.

      By davester · Posted

      I'm sure if you went to a junkyard where you go in and pull the part off the truck yourself, not a used part place where they do it for you, you can get that part on it's own.  Depending on if and what else you would be buying, and time of day, they might even just skip over adding it as a item to the bill.
    • davester
      PF63 Oil Filters Going Away?

      By davester · Posted

      No, we trade them like pokeman cards.

  • GM-Trucks.com Clubs

  • Popular Contributors

×
×
  • Create New...