YACT: Rear brakes locking up

[shekondar]

Question for the mechanics out there...

Anytime I drive my truck (2000 Ford Ranger) in the rain, then let it sit for a few hours, the rear brakes lock up when I drive it again. Even the slightest amount of pressure on the pedal is enough to lock them up (and they're supposed to be anti-lock brakes :disgust: ). But, the problem goes away after I use the brakes a couple of times. I haven't noticed any noise or vibration from them. BTW, the rear brakes are drum brakes.

 

[DaTT]

Get used to it. We have a fleet of F-150's ranging from 2001 to 2003. One of them does that and has ever since it was new.

 

[FoBoT]

the rear drums on my 1990 mazda did that
the mechanic replaced some stuff to fix it

 

[saltedeggman]

:roll:go ford

 

[crab]

My econoline doesnt do that...has great brakes.

 

[iamwiz82]

Both or just one? Drums or Disc brakes in back?

 

[allanon1965]

ASE Certified Master Auto Tech here, you need to have the shoes properly adjusted and the tops of them beveled, whats happening is the drums are slightly rusting when sitting with excessive moisture in the air and the tops of the shoes are digging into the drum due to the increased co-efficient of friction with the rust, a couple of applications of the brakes and it goes away, there is one other possibility, alot of original shoes on fords have a high metallic content in them and changing to a non-metallic shoe may also solve the problem.
Allanon

 

[DaTT]

Originally posted by: allanon1965
ASE Certified Master Auto Tech here, you need to have the shoes properly adjusted and the tops of them beveled, whats happening is the drums are slightly rusting when sitting with excessive moisture in the air and the tops of the shoes are digging into the drum due to the increased co-efficient of friction with the rust, a couple of applications of the brakes and it goes away, there is one other possibility, alot of original shoes on fords have a high metallic content in them and changing to a non-metallic shoe may also solve the problem.
Allanon

QFT. Our mechanic also told us that now that you reminded me.

 

[shekondar]

Originally posted by: allanon1965
ASE Certified Master Auto Tech here, you need to have the shoes properly adjusted and the tops of them beveled, whats happening is the drums are slightly rusting when sitting with excessive moisture in the air and the tops of the shoes are digging into the drum due to the increased co-efficient of friction with the rust, a couple of applications of the brakes and it goes away, there is one other possibility, alot of original shoes on fords have a high metallic content in them and changing to a non-metallic shoe may also solve the problem.
Allanon

Thanks for the advice. It hasn't been doing this for long - only for the last month or so. It's probably about due for new shoes anyway (68k miles, still has the original shoes).

 

[Wingznut]

Originally posted by: shekondar

Originally posted by: allanon1965
ASE Certified Master Auto Tech here, you need to have the shoes properly adjusted and the tops of them beveled, whats happening is the drums are slightly rusting when sitting with excessive moisture in the air and the tops of the shoes are digging into the drum due to the increased co-efficient of friction with the rust, a couple of applications of the brakes and it goes away, there is one other possibility, alot of original shoes on fords have a high metallic content in them and changing to a non-metallic shoe may also solve the problem.
Allanon

Thanks for the advice. It hasn't been doing this for long - only for the last month or so. It's probably about due for new shoes anyway (68k miles, still has the original shoes).

Allanon nailed it. And the fact that you have 68k on your brakes reinforces it. When the shoes get worn down, there is no bevel left.

When you get the brakes done, be sure it's with a high quality shoe WITH a bevel.

(Ex-ASE Certified Master Auto Tech here. )

 

[allanon1965]

what does QFT mean?

 

[DeviousTrap]

Originally posted by: allanon1965
what does QFT mean?

qouted for truth

 

[weirdichi]

While we're still on the topic of brakes, I got an issue.

I changed the brakes about 2 months back and it's now squeakin already. Just the front passenger side though. Last time I changed the brakes, the front passenger side had no more pads while the front driver side still had plenty left. Anything you can help me with?

91 Acura Integra RS hatchback
146k miles

 

[Wingznut]

Originally posted by: weirdichi
While we're still on the topic of brakes, I got an issue.

I changed the brakes about 2 months back and it's now squeakin already. Just the front passenger side though. Last time I changed the brakes, the front passenger side had no more pads while the front driver side still had plenty left. Anything you can help me with?

91 Acura Integra RS hatchback
146k miles

Brakes squeak because the pad is vibrating in the caliper. Usually there are clips and/or springs on the pads to alleviate this. If those are in good order, then use a compound on the back of the pad to "glue" them to the caliper and caliper piston. Any auto parts store should have it.

 

[weirdichi]

Originally posted by: Wingznut

Originally posted by: weirdichi
While we're still on the topic of brakes, I got an issue.

I changed the brakes about 2 months back and it's now squeakin already. Just the front passenger side though. Last time I changed the brakes, the front passenger side had no more pads while the front driver side still had plenty left. Anything you can help me with?

91 Acura Integra RS hatchback
146k miles

Brakes squeak because the pad is vibrating in the caliper. Usually there are clips and/or springs on the pads to alleviate this. If those are in good order, then use a compound on the back of the pad to "glue" them to the caliper and caliper piston. Any auto parts store should have it.

Hmm.. I didn't put on the clips or springs this time. I'd probably just have to change the pads too now if I wanna do that, right?

 

[allanon1965]

if the pads were gone on the right front and they were real good shape on the left front you have a sticking/binding caliper slide/piston, i would redo the entire front brake job, this time replacing the calipers and hoses with all new hardware, shims, etc...also check the rears if they are drum brakes, make sure they are properly cleaned and adjusted.

 

[hemiram]

Originally posted by: shekondar
Question for the mechanics out there...

Anytime I drive my truck (2000 Ford Ranger) in the rain, then let it sit for a few hours, the rear brakes lock up when I drive it again. Even the slightest amount of pressure on the pedal is enough to lock them up (and they're supposed to be anti-lock brakes :disgust: ). But, the problem goes away after I use the brakes a couple of times. I haven't noticed any noise or vibration from them. BTW, the rear brakes are drum brakes.

This is common on many vehicles, not just US cars. You probably need to have the brakes done. What basically happens is the drums rust and "grab" until you clean them up. I had a Jeep that did this from day one until the factory changed the brake shoe material and cured it. It cost me nothing.

My friend's Toyota truck did it from day one, and the dealer, and factory rep, did NOTHING for him. He finally found a set of shoes that cured it by finding a post in an old forum. Only took him five sets of shoes to find ones that worked for more than a couple of months..

That truck was such POS, it rusted so fast it was amazing. In two years, you could see through the bed! What did Toyota do?..Nothing. Last Toyota he bought.

 

[iamwiz82]

Originally posted by: hemiram

Originally posted by: shekondar
Question for the mechanics out there...

Anytime I drive my truck (2000 Ford Ranger) in the rain, then let it sit for a few hours, the rear brakes lock up when I drive it again. Even the slightest amount of pressure on the pedal is enough to lock them up (and they're supposed to be anti-lock brakes :disgust: ). But, the problem goes away after I use the brakes a couple of times. I haven't noticed any noise or vibration from them. BTW, the rear brakes are drum brakes.

This is common on many vehicles, not just US cars. You probably need to have the brakes done. What basically happens is the drums rust and "grab" until you clean them up. I had a Jeep that did this from day one until the factory changed the brake shoe material and cured it. It cost me nothing.

My friend's Toyota truck did it from day one, and the dealer, and factory rep, did NOTHING for him. He finally found a set of shoes that cured it by finding a post in an old forum. Only took him five sets of shoes to find ones that worked for more than a couple of months..

That truck was such POS, it rusted so fast it was amazing. In two years, you could see through the bed! What did Toyota do?..Nothing. Last Toyota he bought.

toyota trucks are not known for their strength versus rust My buddy's had more bondo than sheet metal and it was a 91.