[jilly]

Ok, ya guys - I have a major problem.

I have a 93 mustange 5.O and a big problem braking. The car is with a brake specialist right now (been there for a week) and they can't figure it out.

The problem is the car won't stop when I put on the brakes - it slows and eventually stops but that's it.

They have replaced absolutely everything - calipers, master cylinder, brake pads - not once but 3 times.

They've replaced other things which noone has ever heard of having to replace - can't think of them off hand.

Has anyone ever had this problem? I was reading another post and someone suggested that the brake fluid be changed. Could it be as simple as that??

 

[93GT_RagTop]

Ok, ya guys - I have a major problem.

I have a 93 mustange 5.O and a big problem braking. The car is with a brake specialist right now (been there for a week) and they can't figure it out.

The problem is the car won't stop when I put on the brakes - it slows and eventually stops but that's it.

They have replaced absolutely everything - calipers, master cylinder, brake pads - not once but 3 times.

They've replaced other things which noone has ever heard of having to replace - can't think of them off hand.

Has anyone ever had this problem? I was reading another post and someone suggested that the brake fluid be changed. Could it be as simple as that??

yes it could be. brake fluid will collect moisture over time and the whole system should be flushed. check the power booster for air leaks and all the rubber hoses, when they get old they can expand reducing pressure applied to the rotors and drums.

Jon

 

[jilly]

yes it could be. brake fluid will collect moisture over time and the whole system should be flushed. check the power booster for air leaks and all the rubber hoses, when they get old they can expand reducing pressure applied to the rotors and drums.

Jon

Thanks Jon - I think they even replaced the power booster which is apparently unheard of in a mustang! I will take this up with them tomorrow.

Thanks for responding to my dilemma!!

 

[GhostDog 5.0]

When the brakes are bled do they shoot out fluid ?

 

[jilly]

When the brakes are bled do they shoot out fluid ?

Yes indicating there is no air in the system as I understand it?

 

[Fordgazm1]

bad proportioning valve ?

 

[jilly]

bad proportioning valve ?

They've been looking at this - had it apart, cleaned it. Only problem with this is Ford doesn't make them anymore. (I think this is what I heard yesterday - I'm getting so confused now - they've had the car since the 22nd). So, maybe a visit to a wreckers...?

The shop is the best - they've been doing my car since I purchased the car in '93. Talked to them this morning - they've changed the brake fluid - new hoses - everything's new and they've tried twice with some new parts. Everyone is scratching their heads.

 

[Fordgazm1]

Does it make any noises like a squishy sound when you hit the brakes ? Maybe a master cylinder . Is there good vaccuum at the booster ? are the rotors glazed ? it wont stop for crap if the rotors are glazed . or if the rotors are new , were they cleaned with brake cleaner first ? all of theese things can cause the brakes to not work well . Also , you can still get new proportioning valves .

 

[Fordgazm1]

Also , not to knock your shop , but they really dont seem to competent . Brake systems a fairly simple . I cant see why they are having such a hard time .

 

[privatejoker]

Here's how I would approach it. Go drive the **** out of it. Pull out the temp gun, see what the temp differences are in the rotors, make your conclusions from there.

 

[jilly]

IT'S FIXED!!!!!

And it was something stupid. As I said they had replaced just about everything in the system except for the steel lines. They knew there was air in the system but just where was the poser.

So they took the wheels off, did everything over (bleeding etc) only this time they flipped up the calipers by taking out one lousy bolt. Everything was fine until the right front caliper - did the same thing and they get six shots of air!

So, there you have it. This may help someone in the future. Thank you for all your help!

 

[93GT_RagTop]

IT'S FIXED!!!!!

And it was something stupid. As I said they had replaced just about everything in the system except for the steel lines. They knew there was air in the system but just where was the poser.

So they took the wheels off, did everything over (bleeding etc) only this time they flipped up the calipers by taking out one lousy bolt. Everything was fine until the right front caliper - did the same thing and they get six shots of air!

So, there you have it. This may help someone in the future. Thank you for all your help!

jilly, glad you got your brake problems fixed and that was a strange one. no wonder they were scratching their heads.
Jon:drink: