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kiefer
New User
Jan 30, 2009, 10:04 PM
Post #1 of 4
(2900 views)
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hello im new to here and was wundering if you could help me pin point something on my sisters car apperently the front brakes sticking my thought could be problemed line coroded caliper she needs it done pretty quick with out alot fo money spent any ideas? thanks in advance
its a 2005 cavalier with a 2.2 dohc
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Loren Champlain Sr
Veteran
/ Moderator
Jan 30, 2009, 10:19 PM
Post #2 of 4
(2899 views)
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Re: brakes sticking
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The front calipers must be able to 'slide'. If they are rusty, may be keeping them from moving. When the brakes are applied, the piston pushes out of the caliper and presses the inner brake pad against the rotor. That force pulls the outer pad inwards, pressing it against the rotor. A 'squeazing' motion, if you will. So, if that is what is causing the problem, just remove the calipers and lubricate the slides. We use Sil-glide, available thru NAPA stores.
Hopefully, someone hasn't added something other than brake fluid to the master cylinder. Any petroleum product can cause serious, expensive, problems. You should be able to jack up the car and compare how the front wheels turn. Check the rotors for a bluish tint (which would indicate overheating).
Loren
SW Washington
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Tom Greenleaf
Ultimate Carjunky
/ Moderator
Jan 31, 2009, 12:39 AM
Post #3 of 4
(2897 views)
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Re: brakes sticking
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To add:
The flex hose to the caliper can fail inside and unseen allowing pressure in but locks it in hence a dragging brake. If so it will usually be just one - car would pull EITHER way and worse when brakes applied.
That a generic picture of a flex hose - goes from body to caliper. When and if this is suspected the wheel might be tight when hoisted vs the other side. Test by just cracking open bleeder for a split second to allow only a tad of fluid out (no air back in please) and it that wheel suddenly frees right up the hose is highly likely the fault. IF SO DO BOTH SIDES!
This can be intermittent at first and may go away for a a while. As Loren said - look for the blueish discoloration of which one might be getting hot or you can feel it on a wheel (caution of course) - If both sides do the same a common denominator is a fault with the master cylinder or again as Loren said brake fluid contamination may have ruined rubber parts if an oil was ever added to brake system!
T
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kiefer
New User
Jan 31, 2009, 6:05 PM
Post #4 of 4
(2884 views)
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Re: brakes sticking
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thanks for the quick response guys, you are great im gunna go take it for a road test and see whats wrong ive done a few brake jobs just didnt want to waste my sisters money on something that wasent needed!
thanks for the help!!!!
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