rear brake problem - Maintenance and Repair Forum

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rear brake problem
Saturday, June 30, 2007 1:13 PM
i have an 04 cavy that has been wrecked and when pulled out of ditch the rear cradle was damaged, i replaced it with a cradle brakes and all from a 96 cavy. my problem is since then it seems as if when i hit the brakes that im pulling the ebrake only.....the ass end lcks up and of course causes the car to slide in a very unsafe manner.....is it that the brakes are too small and i need to get 04 rears? the only thing i could think is that the wheel cylinder is filling up way to fast and causing them to lock before the fronts even take affect....thanks for any help..peace

Re: rear brake problem
Monday, July 02, 2007 8:28 AM
bump
Re: rear brake problem
Monday, July 02, 2007 2:48 PM
bump
Re: rear brake problem
Monday, July 02, 2007 3:26 PM
Whats the condition of the front brakes? You could just have good shoes on the back and worn pads up front. Make sure your front brakes work good.
Re: rear brake problem
Monday, July 02, 2007 6:36 PM
LOL, the wheel cylinder fill to fast.

You do realzie the wheel cylinder always has fluid in it, all that happens when you hit the pedal is the fluid pushes out the cylidners and contacts the shoes, which contact the drum.

If you dont have the right year shoes etc on there, why not think about it for a second and install the correct parts?




- 2004 Cavalier - 124k, owned since new



Re: rear brake problem
Monday, July 02, 2007 7:54 PM
it sounds to me like it might be a metering valve failure.
It is designed to hold off pressure in the front brakes until theres a slight amount of pressure in the rear so that the nose of the car doesnt dip down as soon as you touch the brakes.
Since you say the brakes you put on are smaller than the 04's i cant see that being a problem at all, infact it would be quite the opposite.
I would take one of the brake lines off of one of the front calipers and see if it squirts anything out when you press the brakes.
If so then bolt it back up and bleed the entire system.

When you bleed a car you always start at the furthest wheel away from the master cylinder so you'd start at the rear passenger, then the rear driver, front passenger, and last the front driver.
If this doesnt help out any reply and I'll do what I can to help you.

Good luck.



Re: rear brake problem
Tuesday, July 03, 2007 8:01 AM
thank you Doug Gilbert, ill do that as soon as i get a chance.
Re: rear brake problem
Tuesday, July 03, 2007 11:21 PM
Its a good idea to bleed the entire system anytime a line is disconnected, even if you just replace say, the rear cylinders, you should bleed those, then bleed the calipers up front too. Its a good way to get all new fluid throughout the system anyways, which is a good idea every so often.



Re: rear brake problem
Wednesday, July 04, 2007 6:07 PM
^^ agreed.



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