DBR Posted August 8, 2006 Share Posted August 8, 2006 just a quickie, my m8 baught a j-spec tt yesterday, and there seems to be a problem with the brakes? i took it for a spin last night an the brakes seem to judder / bounce a little every now an again?, you can feel the brake pedal sort of 'slightly' bouncing off your foot (sorry for the non technical lingo:innocent: ). Its weird it doesnt seem to matter how hard you brake either? and once we were driving for a while it seemed to stop. It did have a quite badly buckled wheel that he changed so i dont know if that could be responsable for anything? I have a very worried supra owning m8, so any help would be much appreciated! thanks! Link to comment Share on other sites More sharing options...
colsoop Posted August 8, 2006 Share Posted August 8, 2006 Warped disc, sticking caliper ? when the car is in the air does the wheel rotate without any bad resistance ? Link to comment Share on other sites More sharing options...
Rob Dublin Posted August 8, 2006 Share Posted August 8, 2006 Seems to happen on mine when the brakes get very hot. As soon as they cool down they're fine again. Reason enough to upgrade from j-spec methinks. Link to comment Share on other sites More sharing options...
TRD3000GT Posted August 8, 2006 Share Posted August 8, 2006 Ive been doing lots of research in to this as I was experiancing the same problems with my front brakes. There are three things it can be. Bearings in the front wheels.. Jack the car up and move the wheel around checking for up and down play as well as forward and backwards (make sure the wheel lock is on) The front Hubs could be warped very very slightly.. when this is the case no matter how many discs you install you will always have judder and the discs will warp because they are mated to the hub. Just shit discs can also cause the problem.. Normally this is much more likely in drilled or fancy units then straight normall UK discs. Link to comment Share on other sites More sharing options...
Chris Wilson Posted August 9, 2006 Share Posted August 9, 2006 Sounds like a dead ABS sensor to me, and the ABS is triggering. Get someone to pull any ABS fault codes. Is the ABS working OK? Link to comment Share on other sites More sharing options...
Nic Posted August 9, 2006 Share Posted August 9, 2006 Sounds like a dead ABS sensor to me, and the ABS is triggering. Get someone to pull any ABS fault codes. Is the ABS working OK? Just to add to Chris's suggestion. Does the ABS warning check light come on when the ignition is turned on? Normally the ABS light will illuminate if there is a sensor fault whilst driving, if the check light doesn't come on at start up, it could be there is a fault, but the warning light isn't working. Link to comment Share on other sites More sharing options...
Chris Wilson Posted August 9, 2006 Share Posted August 9, 2006 Following further on from Nic: It's common for people to remove the warning light bulb, rather than fix the problem, so if the light doesn't work check if the bulb's been removed! Link to comment Share on other sites More sharing options...
DBR Posted August 9, 2006 Author Share Posted August 9, 2006 cheers for your help guys-much apreciated, im going to see the car agian tonight so ill check some of these things out. we have had the car jacked up already and the front n/s wheel has a un-even rubbing noise wheen spun. i think its a warped disc. Nic/Chris i will check for the abs light tonight - i hope for his sake there isnt anything majorly wrong with the ABS Link to comment Share on other sites More sharing options...
_Rob_ Posted August 25, 2006 Share Posted August 25, 2006 Any solution on this DBR?? Link to comment Share on other sites More sharing options...
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