Question about Buick Century

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My driver side rear tire is leaking brake fluid and I got to refill it everyday it's coming out of the drum so I can't find the leak do you know what the problem is.

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Sounds like the O-ring in the piston is leaking ( slave cylinder ).
with the parking brake off, remove the wheel and brake drum,, at that point it should be very clear where the fluid is coming from. to replace the cylinder it would be a good idea to get a shop manual so you can see a picture of all the parts and the correct order of re-install. you will need to bleed the brake line after the new cylinder is installed and adjust the tension. if you are not mechanically inclinde - you should just stop by a brake shop and it should only take about a hour or less to fix ( $45 - $75 bucks )(?).

c....

Posted on Dec 29, 2010

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3 Answers

Brake fluid leak on rear drum


If you have no evidence of leaking outside the drum, most likely your brake piston is leaking or the drive shaft seal is leaking. Pull off the drum and look for the piston which spreads the two brake pads normally situated at the top. Inspect for leaks. If the fluid is thin, it is most likely brake fluid. If it is heavier like oil and really stinks, it is gear oil from a leaking seal.

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How to fix brake fluid leak on rear brake drum


sounds like the wheel cylinder busted.

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I HAVE A 03 TOWNCAR WITH LEAKING OIL AT THE RIGHT REAR WHEEL. I NEED HELP ON HOW AND WHAT TO CHANGE. ALSO SHOULD I DO BOTH SIDES. THANK YOU JERRY SORRELL 337-842-0485


Leaking oil at the rear wheels can be one of two things, Easy fix is brake fluid, this would be the rear brake wheel cylinder leaking. Check your brake fluid tank under the hood for low fluid. If that is ok. Your leak may be your rear axle shaft seal. You need to remove the tire/wheel ether way. Jack up the car to pull the wheel, take your lugs loose while the tire is still on the ground, it is easy to take them loose this way. Take the EM: brake off, and jack up this side of the car. Your car could have disk or drums as both are offered on the 2003 Town car. Once the tire is off you will see if you have disk or drums brakes. If drums you will need to pull the drum off at access the brake cylinder to see if that is leaking or not. If drums you have to back off the brake shoes by the adjusting wheel thru a small access window in the back plate. If you have disk brakes the caliper is right there and will be easy to see if it is leaking. If you have determined it is the rear axle seal leaking, this may be best done by a shop, due to needing a few special tools to remove the axle and then reinstall a seal. You will need a slide hammer. If drum brakes you will have to remove the brake backing plate, this means shoes and all hardware, please take pictures and get as good focus as you can to see how everything goes back together. Once down to the axle mounting, remove the 4 bolts and attach the slide hammer and pop out the axle, catch any fluid that will leak out. Hope this helps FixYa up.

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I havea 2004 buick rainier that the driver side rear tire will lock up. Any ideas?


your wheel cylinder for the brakes could be leaking or faulty. id check that out

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2 Answers

I should have said what kind of leak I have brake fluid leaking from the rear passinger tire


you mean from "near" your rear passenger tire. Tires don't have brake fluid in them...!
Take a look at the inner part where the wheel mounts to the axle. There is a brake line there, so look to see if it looks like the brake fluid is coming from it, (and that you verify the brake fluid resevoir under the hood is low) or that it might be from the brake drum area. If it's from the brake drum, you probably have a "wheel cylinder" leaking, and need to remove the wheel and drum to verify this.

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1 Answer

Rear driver side tire is leaking fluid. What do I


is the fluid coming from the tire or from the backing plate of the brakes if it is from the backing plate of the brakes then if you have drum brakes its safe to say your wheel cylinder is leaking

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Fluid is leaking from the left rear (driver side), inside of the tire.


sounds as if you brake wheel cylinder is leaking. remove tire/wheel. remove brake drum and inspect

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Leaking brake fluid from the rear tires.


remove the rear tires and the brake drums and check and see if the wheel cylinders are leaking

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Loss of break fluid, wet driver side rear


Check to see if the brake line is leaking. If it’s not , it is probably the slave cylinder. Remove the wheel, take the brake drum off and you should see the cylinder. If it is a disk brake. You have the inside brake pad plunge seal leaking. Sorry I don’t remember if the brakes are disk or drum, and I don’t have my books close. Either way it is a relatively easy fix. Parts are readily available at the auto parts store.

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