Brakes locking - Chicagoland Sportbikes
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post #1 of 4 (permalink) Old 04-11-2007, 09:38 PM Thread Starter
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Brakes locking

I have a 97 Ford Ranger and have noticed that when it has been sitting for a while, especially when it has been raining, that you just have to touch the breaks and they lock up. You have to do this a few times and then it seems to clear itself and the breaks work fine...until today.

My wife is driving home from the train station and rear ends a guy. She said that the breaks didn't come on at all and she was pumping them to work but nothing. I took the truck for a drive and they were locking up again initially then fine as usual.

Apparently the truck has ABS.

I haven't checked the breaks yet but I am wondering if anyone else might know what this may be.

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post #2 of 4 (permalink) Old 04-11-2007, 10:25 PM
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If it sits for a while, rust can form on the rotors. It will be stickier, and could lock up until the rust is rubbed off and gets back to the smooth rotor surface you are used to.

If you press on the brake, and nothing happens, that means there is a loss of pressure in the system, and should be repaired. Sometimes, after my bike is sitting for a while, I will squeeze the brake lever repeatedly to get back up to snuff, but have not experienced that same condition in any car.
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post #3 of 4 (permalink) Old 04-12-2007, 08:42 AM
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Wierd. I have an 02 Ranger and have also experienced the brake gragging, never loss of pressure or brake failure of any kind.

Could be a couple things, assuming that the hydraulic system is ok.

1. Caliper pistons corroded/sticking?

2. Brake lines resticting fluid flow?

3. Wife afraid of husband's reaction to accident? Ya never know.....

I'd get it to a good mechanic asap, or maybe take it to a state of Illinois certified testing lane. They have this trick ass thing in the floor that measures the braking power at each wheel.
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post #4 of 4 (permalink) Old 04-12-2007, 08:50 AM
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How many miles are on the truck? Any brake work done before? Front or back? Disk or Drum?

Bad master cyclinder?
Bad Sensor?
Bad Caliper?
if rear drum? bad return spring?

I'm sick of following my dreams. I'm just going to ask them where they're goin', and hook up with them later!!
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