Brake Pedal Woes
12-28-2012, 02:30 PM
#21
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Location: Twin Cities, MN
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So your issue was that you (edit: the PO) put in larger volume wheel cylinders, and your master cylinder had to be depressed further to move enough fluid to generate the correct pressures? I think I'm thinking about that correctly.
Right now the only parts of my brake system that aren't new are the LSPV, lines and booster. In my case, the entire axle is the correct one and not mismatched wheel cylinders. I very occasionally get that inconsistent height issue. It'll be nice and firm, but if I push too hard it's sort of give way and then not be firm for a while. Hasn't done it in a while though. I could see that issue arising from mismatched pads and wheel cylinders. The cylinders push too far, pop out and suck air back in when the system relaxes. But I don't think that'd happen with a fully matched rear brake system.
Damn, now I'm thinking about it. That only causes trouble.
Right now the only parts of my brake system that aren't new are the LSPV, lines and booster. In my case, the entire axle is the correct one and not mismatched wheel cylinders. I very occasionally get that inconsistent height issue. It'll be nice and firm, but if I push too hard it's sort of give way and then not be firm for a while. Hasn't done it in a while though. I could see that issue arising from mismatched pads and wheel cylinders. The cylinders push too far, pop out and suck air back in when the system relaxes. But I don't think that'd happen with a fully matched rear brake system.
Damn, now I'm thinking about it. That only causes trouble.
12-28-2012, 02:38 PM
#22
So your issue was that you (edit: the PO) put in larger volume wheel cylinders, and your master cylinder had to be depressed further to move enough fluid to generate the correct pressures? I think I'm thinking about that correctly.
Right now the only parts of my brake system that aren't new are the LSPV, lines and booster. In my case, the entire axle is the correct one and not mismatched wheel cylinders. I very occasionally get that inconsistent height issue. It'll be nice and firm, but if I push too hard it's sort of give way and then not be firm for a while. Hasn't done it in a while though. I could see that issue arising from mismatched pads and wheel cylinders. The cylinders push too far, pop out and suck air back in when the system relaxes. But I don't think that'd happen with a fully matched rear brake system.
Damn, now I'm thinking about it. That only causes trouble.
Right now the only parts of my brake system that aren't new are the LSPV, lines and booster. In my case, the entire axle is the correct one and not mismatched wheel cylinders. I very occasionally get that inconsistent height issue. It'll be nice and firm, but if I push too hard it's sort of give way and then not be firm for a while. Hasn't done it in a while though. I could see that issue arising from mismatched pads and wheel cylinders. The cylinders push too far, pop out and suck air back in when the system relaxes. But I don't think that'd happen with a fully matched rear brake system.
Damn, now I'm thinking about it. That only causes trouble.
The brakes were part of a whole list of to-do's I gave him to get all 'known' mechanical issues checked off as done. I'm looking forward to that to-do list being put to bed!
So your good to go now?
12-28-2012, 03:11 PM
#24
It won't be done til tomorrow, so there's always a chance I guess that the road test finds some lingering symptom of it.
I'm not totally in the clear yet. When I was attempting to get my rear defroster working, I somehow broke something (likely a wire) inside the tailgate that is preventing my window motor from working (there's an entire separate thread on this too). I'm all tapped out paying for repairs (over $1k the past two weeks alone), so I'll be going solo on that one trying to repair it. Desperately need to have my tailgate working again. Once that is done, I'll be in the clear for a while - I sincerely hope!
I'm not totally in the clear yet. When I was attempting to get my rear defroster working, I somehow broke something (likely a wire) inside the tailgate that is preventing my window motor from working (there's an entire separate thread on this too). I'm all tapped out paying for repairs (over $1k the past two weeks alone), so I'll be going solo on that one trying to repair it. Desperately need to have my tailgate working again. Once that is done, I'll be in the clear for a while - I sincerely hope!
12-28-2012, 03:20 PM
#25
Registered User
It won't be done til tomorrow, so there's always a chance I guess that the road test finds some lingering symptom of it.
I'm not totally in the clear yet. When I was attempting to get my rear defroster working, I somehow broke something (likely a wire) inside the tailgate that is preventing my window motor from working (there's an entire separate thread on this too). I'm all tapped out paying for repairs (over $1k the past two weeks alone), so I'll be going solo on that one trying to repair it. Desperately need to have my tailgate working again. Once that is done, I'll be in the clear for a while - I sincerely hope!
I'm not totally in the clear yet. When I was attempting to get my rear defroster working, I somehow broke something (likely a wire) inside the tailgate that is preventing my window motor from working (there's an entire separate thread on this too). I'm all tapped out paying for repairs (over $1k the past two weeks alone), so I'll be going solo on that one trying to repair it. Desperately need to have my tailgate working again. Once that is done, I'll be in the clear for a while - I sincerely hope!
I sure you will be good to go tomorrow.
As for tailgate should be a 1 fix at least. Post up with results on both repairs.
12-29-2012, 01:15 AM
#26
What I can`t figure out is how the P.O. did not see the difference in wheel cylinders .
The only ones I could think of that would be so much bigger are the ones used in the Tacoma`s because the amount of extra volume has to be considerable to cause that problem.
I would love to know the numbers to do the math
Well let`s hope that is the end for now.
On to the window!!!!
The only ones I could think of that would be so much bigger are the ones used in the Tacoma`s because the amount of extra volume has to be considerable to cause that problem.
I would love to know the numbers to do the math
Well let`s hope that is the end for now.
On to the window!!!!
12-29-2012, 05:26 AM
#27
What I can`t figure out is how the P.O. did not see the difference in wheel cylinders .
The only ones I could think of that would be so much bigger are the ones used in the Tacoma`s because the amount of extra volume has to be considerable to cause that problem.
I would love to know the numbers to do the math
Well let`s hope that is the end for now.
On to the window!!!!
The only ones I could think of that would be so much bigger are the ones used in the Tacoma`s because the amount of extra volume has to be considerable to cause that problem.
I would love to know the numbers to do the math
Well let`s hope that is the end for now.
On to the window!!!!
Last edited by stanz; 12-29-2012 at 05:28 AM.
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