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Brake Kick-back...

Carnac

Charter Member
SM 2003
Full Member
Joined
Mar 3, 2002
Messages
111
Location
Las Vegas, NV
I've noticed on my Av (with 700 miles) that I get a noticeable kick-back on the brake petal when I depress it quickly.

I'm not talking about hard stopping where the anti-lock system starts. I notice this even when stopped.

If I tromp down on the brake petal there is first low resistance for about an inch, then the petal kind of kicks back or bounces once or twice. I don't get this if I apply easy (even if firm). I also notice that if the steering wheel is turned that I get some feed back through it also when the brakes kick.

To me it feels like two things, the brakes need bled and that the brake power assist is not fully up to pressure.

Is this common on all Avalanches or do I need to go to the dealer?

More annoying than anything. Otherwise, just a super truck.

Thanks - Jim
 
I hate to say it but if you hit your brakes real hard and they kick back I bet it is the ABS. I dunno maybe a call to the service guy would help.
 
I don't mean when I get on the brakes hard (I know what the ABS feels like). This is just with a rapid application (even when stopped in park) to the point the brakes first engage. That is when I get one or one and a half kicks or strong pules back through the petal. If I keep on the brake (even hard) no more kick (until the ABS starts). I've never had this on any other GM ABS vehicle. Guess I'll take it into the service department. I know they will say the ABS at first also. Cheers, Jim
 
Please report back on what the service dept says.
 
Definitely take it in. This isn't normal at all. You need to get it fixed. :eek:
 
Carnac - did you have the PCM reset when you put the 265/75/16's on - if not, this will definitely mess with the ABS. :eek:
 
No to the PCM reset - I was kind of likeing the reduced odometer reading (if only 4%). Guess I'll try that - really like the Goodyears though - they ride nice and look great! Thanks for the help...Jim
 
About the brake kick back problem, :E: I'm geting Major
kick, almost like the time I put my foot down to stop, the pedal kicks me in the face :7:what's up with that?
 
My 02 2500 has the same issue. It has been looked at several times...they always say it's functioning normally. My 2002 GMC 1500HD had great brakes that never did this. It isn't the ABS. "It's the hydroboost system" the techs say.

Well, it got so bad (and pedal feel diminished as well) that I asked they bleed the brakes. They happily charged me, took my money, and nothing changed. :6:

I then failed my annual inspection at Jiffy Lube because of the way the brakes were behaving. :eek: The pedals drops to the floor and behaves erratically especially when putting it in park/drive/etc... They looked at it again and said "Brakes are operating normally".

Well, it's a long story but the truck is now parked and under mediation for many reasons like water in the cab. GM called me again and said they were now willing to look at the brake system booster if I could wait 2 weeks for an engineer. At this point I've been dealing with these issue for over a year and it is simply too little too late.

Best of luck with the brake fix...we couldn't figure it out. It is scary at times! Please post it here if you find a solution. :cool:
 
Mine does the exact same thing.  I argued with the service tech last Saturday for over an hour about it.  He says it's the hydroboost system and, while they all don't show it all the time, "it's common more often than not".  I told him I didn't like that answer and I felt like something was different about my truck (just had steering intermediate shaft replaced when I started to notice it).  After going all the way to the dealership manager, I gave up.  After driving it for a week now, I don't notice it anymore .... unless I specifically check for it and of course it's still there.

Keep us posted on any progress/resolution you find.

-kevin
 
Hello all, and welcome to my first post on CAFC!  :cool:

My 05 (with all of 274 miles on it) started this up today.  I'm even getting a hydrolic "squeak" when this happens.  The service writer and the tech tried the standard "Yeah, that's probably normal with the hydroboost system" thing with me.  I told them, "Well, if that's normal, then I guess they heven't been functioning properly since I bought the truck, because it just started today.  And if this is how they're supposed to function, you can have your truck back because I won't own a vehicle that drive like this."  A couple hours later, and after comparing the brakes on my truck to another new one on the lot, the dealer said they were going to replace the hydroboost unit.  I should have it back this afternoon.

In the mean time, I called Chevy and reported the issue to them so I could start a paper trail.  Because if the new one starts this, it's obviously a design problem that they haven't fixed yet.
 
mine did this yesterday too (2nd time) my truck is a 2002 1500 2wd. i dont even remember when the first time it happened but it did it again yesterday
 
I think we ALL need to start calling Chevy about this issue.  If they haven't fixed it in 4 model years, then they haven't heard from us enough!  The number is 1-800-630-2438.  Lets get them and/or Bosch to finally take care of these.
 
Well, the brand new hydroboost assembly behaves exactly the same way.  They had me drive another brand new AV with hydroboost, and it was WORSE!  I called GM again and filed a complaint.  The lady at GM said that anyone experiencing this needs to call and report it if they really want GM to look into it.  So if that's you, PLEASE call and complain about it.  Maker sure they file a complaint and give you a service request number.
 
My 1500 2002 is doing it too, not a single problem on the 2,500 miles
I drove it in the USA, as soon as I get it to England, it does it  :cautious:

must be the weather
 
My 05 AV, which has right at 5000 miles started doing this last week. It's at the dealer now for this problem and a trans shudder between 45-50. It's supposed to be done monday. It makes me nervous when the brake system acts up. I will keep you updated. 
 
ygmn said:
I hate to say it but if you hit your brakes real hard and they kick back I bet it is the ABS. ?I dunno maybe a call to the service guy would help.


  that's what i was thinking.
 
Guys...this is NOT anti-lock.  And you don't have to hit the brakes hard at all, just quickly...even if you don't press down very far.  It's a hydraulic pressure kick-back in the valve, often accompanied by by a hydraulic yelp/chirp/squeek or however you want to describe it.  I know exactly how GM anti-locks feel (as do most others out here) and this issue is NOT anti-locks.  Nevertheless, it's someone else's problem now.
:deadhorse:

HEMI still roaring along nicely.  :drive:

--Former GM Addict
 
Wow,

The brakes on my '05 started doing this last week and I thought that it was odd.  I will have to give the General a call and report it.  Dunno if taking it in will accomplish anything though.
 
Did anyone get a resolution to this.  I had my dealer check my 05 out for this problem last fall and I got the standard "It's just the hydroboost, they all do it"  The problem I have is  that it's MUCH worse if the truck sits for a few days.  It get's bad enough that it feels like it effects my braking power.  Like the is a delay before I get maximum braking and if I needed to stop fast it would take longer to do so because of it.

Love the truck but it's driving me nuts.  It's an 05 with 24K miles on it.

What to do, what to do......
 
My 05 has had this kick back with the brake pedal for quite sometime. 
I took it to the dealer but they couldn't duplicate the problem. 
I thought maybe it could be certain weather or road surfaces that would make it start acting up, but it does it frequently in all weather and road conditions.
It will even kickback when I put my foot on the brake to shift from park to drive or reverse. 
It has done it when I've tried to stop fast and even when I am just slowly rolling up to a light.

It has me baffled because it will do it a lot for a few days in a row and then be good for a month.  ???
 
LeAnn said:
My 05 has had this kick back with the brake pedal for quite sometime. 
I took it to the dealer but they couldn't duplicate the problem. 
I thought maybe it could be certain weather or road surfaces that would make it start acting up, but it does it frequently in all weather and road conditions.
It will even kickback when I put my foot on the brake to shift from park to drive or reverse. 
It has done it when I've tried to stop fast and even when I am just slowly rolling up to a light.

It has me baffled because it will do it a lot for a few days in a row and then be good for a month.  ???

Im having this identical problem now on my 05.

It even does it when in Park, and then shift into drive sometimes.

Did anyone ever get a solution?
 
My '01 2500HD and my '04 2500 Avy both behave the same, and the Dodge Cummins was similar as well

Seriously guys, hydroboost behaves differently.
 
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