Brake slip while going down slopes

[EQUIPED]

Hi, I have a 2005 VZ Equipe with 34K on it. My problem is a bit strange so bear with me while I explain.

While going down a slope with slight brakes on, if I apply more brake due to a speed bump, it seems as if the brake slips while going over the bump. I also hear a "kadak kadak" metallic kind of sound. Has anyone else experienced this on their rides?

Thanks!
Anu

 

[Troy711]

yeap. ive had the same thing happen. it is very infrequent with mine, and i have also noticed it while using the brakes at very low speeds. it almost feels like the ABS is kicking in, but its alot more harsh.

(mines an 05 VZ S ute)

 

[crewzincool]

It might be the ABS braking system..if its fitted

 

[Troy711]

possibly.. i know how ABS reacts under normal emergency braking, and this is way hasher. and usually its does it at 5km/h when you are only very slightly pressing the brakes

 

[EQUIPED]

Thanks for your responses. I have only faced this while going down a slope (between 10 - 30kmph). Is this something to worry about? When I mentioned this to Hunter Holden, they said it must be the ABS which causes a kick-back. However, it is the metallic kadak-kadak noise that concerns me. Should I be worried about brake failure or is this something thats just there?

btw, (for Sydneysiders) have a great long weekend! I am off to the Blue Mountains for a trip.

Ciao

 

[benzor]

ABS

Every commodore ive driven does it in the same spot near my house

VT Exec
VT SS
VX SS
VY Calais
VZ Acclaim
VZ Exec
VZ SV6
VZ Berlina
VZ Calais
VY Adventra

It's the ABS.