Brake pedal vibration every few depresses

[dedonderosa]

so my buddy just picked up a 16 quicksand trdp last night, and for some reason his brake pedal keeps vibrating like as if abs is kicking in, but it only does it every few times he hits the brake? my 17 doesn't do this just strange anyone else have this issue? no abs light or anything, his truck only has 8k miles on it too?

ive searched and some say its normal others say bad master cylinder? just seems odd esp it being basically brand new ya know.

is there a tsb on it ?

 

[Jaydub514]

so my buddy just picked up a 16 quicksand trdp last night, and for some reason his brake pedal keeps vibrating like as if abs is kicking in, but it only does it every few times he hits the brake? my 17 doesn't do this just strange anyone else have this issue? no abs light or anything, his truck only has 8k miles on it too?

ive searched and some say its normal others say bad master cylinder? just seems odd esp it being basically brand new ya know.

is there a tsb on it ?

It's still under factory warranty. Bring it into the dealer, show the advisor/foreman what you think the issue is and go from there.

 

[dedonderosa]

yeah thats what i told him to do. just weird how its doing that and some searches on here say its normal but ive never driven any car that has a vibrating pedal. imo the pedal should NEVER vibrate on any car unless the abs is engaging. to tell you the truth after driving it for half hr last night, that shit would drive me crazy. def not normal