89 LE - Dragging Brakes - Ohhhh, boy, here we go again!
06-23-2007, 07:40 PM
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Yes sir. I did.
NOW. How about this one. I was on my way up to the parts store to get my core $ back and the brakes were STILL acting VERY strange, no pressure until 3/4 pedal depression and even then you had to press pretty hard to get it to stop...so I was goin down the road, say 60 mph, and there was this horrible clunk underneath the car, like i had just run over a big rock or something, and so instinctually I looked in the rear view for something and then applied the brakes, and they were BACK. I was like WTF. How is it even possible that some random CLUNK under the car made the brake pressure come back?!?!?
So now they're working again!!! I have no idea WHY, but the only thing I can slap on this one is devine intervention
Anything that would cause a clunk right from the area I was working and then have the full pressure come back? I really want to apply some logic to this.
NOW. How about this one. I was on my way up to the parts store to get my core $ back and the brakes were STILL acting VERY strange, no pressure until 3/4 pedal depression and even then you had to press pretty hard to get it to stop...so I was goin down the road, say 60 mph, and there was this horrible clunk underneath the car, like i had just run over a big rock or something, and so instinctually I looked in the rear view for something and then applied the brakes, and they were BACK. I was like WTF. How is it even possible that some random CLUNK under the car made the brake pressure come back?!?!?
So now they're working again!!! I have no idea WHY, but the only thing I can slap on this one is devine intervention
Anything that would cause a clunk right from the area I was working and then have the full pressure come back? I really want to apply some logic to this.
06-24-2007, 03:15 AM
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Thanks for all your help guys. Shes parked at 149999 right now. Hopefully nothing will go wrong on the roll to 150k I really hope the problem doesn't come back. Thanks again.
I really hope the problem doesn't come back. Thanks again.
06-24-2007, 09:10 PM
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SOOO, left the parking lot this morning, brake worked fine...then she rolled onto 150,000 miles...and...the brake...went back to doing it all over again. No clunk or anything this time, just back to sinking all the way and then catching. once or twice on my 40 mile RT today, they failed completely. 
On the way home, they came back to KINDA normal, and then as I parked, they went away again. UGH. So whats this mean? master cylinder replacement?
I just checked the FSM for replacement procedure and it really doesn't seem that hard, but its a little confusing. I've heard that you have to "bench bleed" it, how exactly do you go about doing that? The FSM says disconnect two of the front lines from the MC and then let the fluid drain into the MC, then bleed air from the MC at the MC fittings, and then repeat the bleeding of air from the rear connectors as well. I'm sort of confused as to what connectors do to what, but i'm under the impression that the ones on the bottom are the rears, and the top ones are the fronts. The FSM is confusing that by saying something about how two on one side is front and then the other two, top and bottom, towards the passenger compartment is rear. So can someone please shed some light on this? As well as full procedure, req'd tools and um, anything else I should know about doing it. I'd appreciate it.
On the way home, they came back to KINDA normal, and then as I parked, they went away again. UGH. So whats this mean? master cylinder replacement?I just checked the FSM for replacement procedure and it really doesn't seem that hard, but its a little confusing. I've heard that you have to "bench bleed" it, how exactly do you go about doing that? The FSM says disconnect two of the front lines from the MC and then let the fluid drain into the MC, then bleed air from the MC at the MC fittings, and then repeat the bleeding of air from the rear connectors as well. I'm sort of confused as to what connectors do to what, but i'm under the impression that the ones on the bottom are the rears, and the top ones are the fronts. The FSM is confusing that by saying something about how two on one side is front and then the other two, top and bottom, towards the passenger compartment is rear. So can someone please shed some light on this? As well as full procedure, req'd tools and um, anything else I should know about doing it. I'd appreciate it.
06-24-2007, 10:40 PM
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Originally Posted by wjcollier07
SOOO, left the parking lot this morning, brake worked fine...then she rolled onto 150,000 miles...and...the brake...went back to doing it all over again. No clunk or anything this time, just back to sinking all the way and then catching. once or twice on my 40 mile RT today, they failed completely. On the way home, they came back to KINDA normal, and then as I parked, they went away again. UGH. So whats this mean? master cylinder replacement?
I just checked the FSM for replacement procedure and it really doesn't seem that hard, but its a little confusing. I've heard that you have to "bench bleed" it, how exactly do you go about doing that? The FSM says disconnect two of the front lines from the MC and then let the fluid drain into the MC, then bleed air from the MC at the MC fittings, and then repeat the bleeding of air from the rear connectors as well. I'm sort of confused as to what connectors do to what, but i'm under the impression that the ones on the bottom are the rears, and the top ones are the fronts. The FSM is confusing that by saying something about how two on one side is front and then the other two, top and bottom, towards the passenger compartment is rear. So can someone please shed some light on this? As well as full procedure, req'd tools and um, anything else I should know about doing it. I'd appreciate it.
On the way home, they came back to KINDA normal, and then as I parked, they went away again. UGH. So whats this mean? master cylinder replacement?I just checked the FSM for replacement procedure and it really doesn't seem that hard, but its a little confusing. I've heard that you have to "bench bleed" it, how exactly do you go about doing that? The FSM says disconnect two of the front lines from the MC and then let the fluid drain into the MC, then bleed air from the MC at the MC fittings, and then repeat the bleeding of air from the rear connectors as well. I'm sort of confused as to what connectors do to what, but i'm under the impression that the ones on the bottom are the rears, and the top ones are the fronts. The FSM is confusing that by saying something about how two on one side is front and then the other two, top and bottom, towards the passenger compartment is rear. So can someone please shed some light on this? As well as full procedure, req'd tools and um, anything else I should know about doing it. I'd appreciate it.
06-25-2007, 02:24 PM
#17
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It does sound like the master cylinder could be going bad...
Is it the original?
And if you are going to replace the Master cylinder.... we will need to talk in the next day or so..
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Is it the original?
And if you are going to replace the Master cylinder.... we will need to talk in the next day or so..
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06-25-2007, 03:30 PM
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Yeah, I just went and bought one. I definitely will take any advice possible. I really need to get this done soon since i'm leaving on the first. So very very soon we should talk.
06-25-2007, 03:36 PM
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Originally Posted by wjcollier07
Yeah, I just went and bought one. I definitely will take any advice possible. I really need to get this done soon since i'm leaving on the first. So very very soon we should talk.
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06-27-2007, 06:10 PM
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Ok, so I've got the MC, and I've FINALLY got my wrenches. Its already 5 pm here and I have a bunch of stuff to do, I think I'm gonna do it tomorrow. I'll probably call yah if I have any questions Don, appreciate your assistance so far.
And now to add to my beautiful brake problems, lmao, I don't know how much else can go wrong, but one of my friction pads on one of the brake shoes fell off or wore through and now its GRINDING metal on metal on the drum What else can go WRONG with these brakes?!? So I will probably be replacing my shoes when I get back from Florida, but boy, drum brakes are always such a joy to work on.
And now to add to my beautiful brake problems, lmao, I don't know how much else can go wrong, but one of my friction pads on one of the brake shoes fell off or wore through and now its GRINDING metal on metal on the drum
What else can go WRONG with these brakes?!? So I will probably be replacing my shoes when I get back from Florida, but boy, drum brakes are always such a joy to work on.