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Front brake problem

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Joined: Aug 12, 2007
Posts: 99
Posts per day: 0.03
Location: Bethel, CT

2004 Chevrolet Impala

PostPosted: Sun Sep 08, 2013 9:58 pm    Post subject:  Front brake problem Reply with quote

So a few days ago my front brakes began to sort of grind while driving. As the car is moving it feels as if the brakes are being applied. Once it started happening I immediately drove it home however once I stopped at a stop sign the brakes locked up and I was unable to move the car. Also the brake pedal feels odd, sometimes there isn't pressure and others there is too much. I was able to get the car moving with some good ole wd-40 but the issue is still present. I am unable to jack it up until I get my tools/jacks and realize I should probably just bring it to a shop however I figured I would ask you all for any information on my problem before I do so. Thanks in advance!

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Joined: May 18, 2009
Posts: 208
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Location: Langley, B.C.

2006 Chevrolet Impala

PostPosted: Mon Sep 09, 2013 12:58 am    Post subject:   Reply with quote

Sounds to me that the pads have worn down to metal and heat buildup is causing the rotor and pad to weld together. My son's car did this and had to replace rotor, pads and caliper as everything had welded together. If so, do NOT drive vehicle untill repaired! Never use a lubricant on brake pads or rotors, very dangerous, if that's where you sprayed the wd40. If not able to do repair yourself, have it towed to your mechanic.
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Joined: Dec 13, 2007
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2004 Chevrolet Impala
1986 GMC Sierra
1994 Chevrolet Silverado
1984 GMC Sierra
1979 Chevrolet Silverado
1991 Chevrolet Silverado

PostPosted: Wed Sep 11, 2013 5:25 am    Post subject:   Reply with quote

if something gets to the point/heat where it "welds" stuff together the car should be in flames and wd40 wouldnt fix that. but anyway sounds like a brake hose problem. or brake caliper problem. one or the other is restricting fluid from getting back to the master cylinder. i had a brake hose bracket start to corrode on the inside compressing the hose. but we dont have that bracket on our cars but i guess it still could happen

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Joined: Oct 21, 2006
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Location: Ontario, Canada

2003 Chevrolet Impala
1999 Yugo Tempo

PostPosted: Wed Sep 11, 2013 12:44 pm    Post subject:   Reply with quote

likely a fluid or line problem as mentioned above. A line may have collapsed, preventing the return of fluid toward the master. Air in the lines may produce weak brake pressure but will not lock the caliper.

Alternatively, the slider pin in the caliper may have seized up - the result could be a locked caliper.

Sounds to me like you have some replacement parts coming your way. And if you haven't done it anytime in the last 24 months, flush your brake fluid out when you change the parts.

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