Grinding sound coming from the back of the car

[rich3001]

My 1.2 started making a grinding sound from the rear and the car vibrates when i slow down. What could be causing this? Thanks

 

[CJRamze]

"Probably" Rear brake discs.
Mine grind when under braking for the first 5 minutes of each journey. After that they clear up.
Vibration suggests maybe warped discs? ... if you dont have discs then I'm not sure what to suggest maybe badly worn pads?

 

[adam kelly]

if you have drums might of got a stone stuck in it or ya shoe linein might have come away might be best to strip them down and check.

 

[red_october]

Mine used to grind and squeel because the drums were full of brake dust but they always used to be noisy in the cold.

 

[rich3001]

Thanks, im pretty sure its drums on the rear so i will strip them down and see what i can find. Just got to wait for it to clear up a bit. Could it be down to a bearing possibly going?

 

[Deleted member 13581]

Could be the cold not releasing the shoe completely from the drum.

Does it do it after the car has been moving for a while? With some heat in it, it could be loosening off.

 

[rich3001]

Could be the cold not releasing the shoe completely from the drum.

Does it do it after the car has been moving for a while? With some heat in it, it could be loosening off.

I travel about 15 mile to work and it grinds all the way. Just waiting for my neighbour to move is car so i can put mine in his garage to have a look.

 

[rich3001]

Took my drums apart and gave them a good clean up, put them back together and there is still a grinding sound

 

[mazzerati]

be careful tho when taking them drum cases off. they have a tendency to pull the pin coupling off the pin that hold the shoes back., well they did on mine. might not on yours i dunno how many miles its done.

 

[RUM4MO]

Usually these shoe hold-down pins will stay put if you have managed to wind back the brake shoe adjuster and the handbrake activating lever has not seized up. To the OP did you actually remove the shoes completely and ease off the handbrake activating lever that is mounted on one shoe? If not then I'd reckon that the shoes are still siezed and remaining partially on. Have you checked the temperature of the rear drums after a run - they should not be hot - though if you have been braking a bit then they will be a bit warm. Can the rear wheels be rotated easily when the rear is off the ground?

 

[rich3001]

Problem is all sorted now , it was the hand break wasnt releasing fully, thought i checked this the other day . i also noticed that the passenger rear seems to have worn more than the drivers, will i need to get this fixed? or will it pass a MOT (Got it in 2 weeks)?

 

[RUM4MO]

I think that handbrake efficiency needs to be very very low before you will fail an MOT on that point - split-diagonal braking systems let them drop this requirement a bit. Though it is handy to have a "good" handbrake!

 

[red_october]

I think the minimum efficiency on the handbrake is something like 16%, well it is for a PCV anyway.