Jump to content
SAU Community

Recommended Posts

Hey.. Just wondering if anyones got any thoughts on a possible cause of car shuddering when braking under heavy conditions, like brakeing from above 100k's. Had new pads front and rear and discs machined and checked for warpage, came up good but still shuddering... Any ideas? Car is a series 2 c34, RB25det auto.

Link to comment
https://www.sau.com.au/forums/topic/396583-car-shudders-when-braking/
Share on other sites

Does it do do it when the brakes are cold too? Brake discs, especially the front can get heat spots in the rotors that are un-machineable. Other than that i would be checking my wheels bolts and front hub nuts mate :thumbsup:

bearing and ballance nd hub nuts would all cause vibration even when not braking. it would be something brakes. maybe double check caliper bolts if they left any lose, otherwise would be warped rotors. so were not machined properly most likely or have warped since then. have u been through puddles of water after a long or heavy drive? check for discolouration in rotors (ie heat spots)

Thanks guys. Have checked bolts and all that in the past and all checked out good, i will re check though i think. I did have a problem with my lhr caliper, it wore the pads down passed the metal backing, while the rh side was fine and i never fixed that i just bought new pads. That wad only the rear though which would only affect the brake pedal and not the entire car right?

that is right. rears will shudder pedal. nd to fix that wearing problem, remove nd put caliper slide grease on the slide. as slide could be seized. for steering shudder it will be in the fronts.

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


  • Similar Content

  • Latest Posts

    • Yeh I think i'll message an old contact i had for ages that manages his own tyre shop now.. n tell him what i want n work with him before ordering..  Got this 17x9 +30 Driftteks on 245/45/17 PSR Drag Radials on the rear.. They fit well - for your reference in future - Rear guards  have been lipped in & minimal to non flaring of the rear Gaurds.    
    • If only it were that easy! I also needed to remove seats, shocks, brake calipers, send my car through a fence, and use measuring and ended up guessing because I didn't remove seats, shocks and brake calipers. It can be hard sometimes Can be a little more complex than 'just measure' if you want to truly measure the entire wheel through all of it's suspension travel. But if you aren't going for every last mm then yeah, you can check the space you currently have and guesstimate.
    • If you own a car, and it has wheels on it, and you know the offset of those wheels, and you have a measuring device, you have everything you need to work out if other wheels will fit.
    • Will this fit? but they are staggered set - RAYS 57DR SEMI GLOSS BLACK 18x8.5 +37 | 18x9.5 +38 5-114.3 STAGGERED SET   or If no go could just get a set 4's wheels of 18x8.5 +37 5-114.3 - would i run 8.5's 235s up front n 245's at the back if I do?   Thanks.        
    • Put a clamp on your return line. I have a feeling it's sucking air, and introducing bubbles to your fuel. With a lot of fuel, less problematic. I'd honestly be redoing all the lines in the tank and clamps on everything.   Also, you've given two different answers to the same question: Asked if being followed by the police you could get down to use the whole tank, you said yes you could, so long as you keep off boost. However, you then followed this up that free revving, it would also cause the issues. I'm doubting free revving is enough to make any noticeable boost on what is likely a decent sized turbo.   So now I have to ask, can you actually drive it lightly and use all the fuel, or does it break up even free revving? Also, have you put a fuel pressure gauge on it? Can you hear the pump change noise at all when you're having this issue?
×
×
  • Create New...