Caliper hanging up?

[flyarmyguns]

So I figured new calipers would have solved this issue... but... a few hundred miles later I have a left front caliper hanging up. I don't recall which side hung up before but I think it was the passenger side.
Can anyone offer a suggestion as to why this might happen? Is there a common issue? Break lines maybe? Something ells going on?
Thanks ya'll

 

[IDIBRONCO]

Sometimes, as they age, the rubber brake lines can have a loose piece inside that can slow down the returning brake fluid which acts like a caliper is hanging up.

 

[catbird7]

Sometimes, as they age, the rubber brake lines can have a loose piece inside that can slow down the returning brake fluid which acts like a caliper is hanging up.

I don't know exactly why it works however very often the rubber flexible lines have a metal tab wrapped around them to support it and if you remove that tab the calipers return to normal operation.

 

[Clb]

De rust the channels, replace the metal clad rubber keys.

 

[flyarmyguns]

What kind of lube for the channels and keys? Hoses are cheap enough, I'll do the hoses and channels at the same time and give her a try again...

 

[Philip1]

I had a caliper hanging up on my '73 ford. After replacing everything on the truck, I fould the pushrod through the brake booster was adjusted out too far and would not disengage the master cylinder

 

[Clb]

Anti seize, or disc brake lube (backing plate **** at the store.)
Do I need to mention
SPARINGLY

 

[The_Josh_Bear]

Just to add, another member here helped me out by mentioning that if your calipers are coated, that will take up extra space where the slides/keys are and keep that brake from centering correctly and it drags.

We chipped off the coating and his worked fine, mine works better but not all the way.

Edit: it was @chillman88 !

 

[chillman88]

Yup saburai and I found that when we did calipers on his new truck, the paint on the slides was causing the calipers to lock up.

 

[IDIBRONCO]

I had a caliper hanging up on my '73 ford. After replacing everything on the truck, I fould the pushrod through the brake booster was adjusted out too far and would not disengage the master cylinder

I had this happen on my Bronco once.

 

[flyarmyguns]

Ok, I think I understand the issue...
I knocked out the keys and the caliper remained stuck. I lubed the keys with anti-seize and reinstalled them.

Next, I tried to bleed it with my handy-dandy vacuum pump. I can't get a drop of brake fluid... but... the caliper released. So, I'm thinking this is indeed a failed hose which may be blocked on the inside somehow. Hoses unavailable until tomorrow. Anyone disagree with the diagnosis?

 

[chillman88]

Nope, I've seen it happen before. Could very well be the issue.

 

[IDIBRONCO]

The hoses aren't very expensive. There's a good chance that they're the originals too.

 

[flyarmyguns]

Yeah, they are really cheap.
It’s a good lesson. If you’re doing calipers do the hoses with them. I won’t make that mistake again.

 

[IDIBRONCO]

Yeah, they are really cheap.
It’s a good lesson. If you’re doing calipers do the hoses with them. I won’t make that mistake again.

I should follow your rule more often.